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Dr. Ramendra Sundar Dey

Scientist-D

Dey's laboratory for Electrochemistry of NanoMaterials (DENanoMat) group research interest is focused on nanocarbon-based hybrid materials for state-of-the-art energy storage and conversion system for renewable energy generation. We are in progress in developing a hybrid supercapacitor with battery or biofuel cells for clean and self-sustainable energy storage devices, paper-based biofuel cell and electrochemical study of nanoporous materials. Electrochemical fixation of CO2 and N2, and metal-air battery is our major research interest. We are also interested in developing low-cost biosensing devices.

Contact Information :

  • Ph.D. positions are available in my group for students with CSIR-NET-JRF, UGC-NET-JRF or any other national fellowship.

    Contact the PI at rsdey@inst.ac.in for more details.

  • Electrochemistry of nanomaterials

    Inorganic and materials chemistry

    Electrochemical N2 fixation to ammonia and urea

    Electrochemical CO2 reduction

    Electrocatalysis: water splitting and oxygen reduction reactions

    Energy conversion and storage

    Supercapacitor, on-chip microcapacitor, Li-ion battery, integrated self-powered storage device

    Electrochemistry of 2D nanomaterials such as graphene and Mxene

    Hybrid energy technology: solar-powered H2 production

  • Ultrafine mix-phase SnO-SnO2 nanoparticles anchored on reduced graphene oxide boost reversible Li-ion storage capacity beyond theoretical limit. (ACS Nano, 2022, 16, 15358–15368)

    Tin-based materials with high specific capacity have been studied as high-performance anodes for Li-ion storage devices. Herein, a mix-phase structure of SnO-SnO2@rGO (rGO = reduced graphene oxide) was designed and prepared via a simple chemical method, which leads to the growth of tiny nanoparticles of a mixture of two different tin oxide phases on the crumbled graphene nanosheets. The three-dimensional structure of graphene forms the conductive framework. The as-prepared mix phase SnO-SnO2@rGO exhibits a large Brunauer-Emmett-Teller surface area of 255 m2 g–1 and an excellent ionic diffusion rate. When the resulting mix-phase material was examined for Li-ion battery anode application, the SnO-SnO2@rGO was noted to deliver an ultrahigh reversible capacity of 2604 mA h g–1 at a current density of 0.1 A g–1. It also exhibited superior rate capabilities and more than 82% retention of capacity after 150 charge–discharge cycles at 0.1 A g–1, lasting until 500 cycles at 1 A g–1 with very good retention of the initial capacity. Owing to the uniform defects on the rGO matrix, the formation of LiOH upon lithiation has been suggested to be the primary cause of this very high reversible capacity, which is beyond the theoretical limit. A Li-ion full cell was assembled using LiNi0.5Mn0.3Co0.2O2 (NMC-532) as a high-capacity cathodic counterpart, which showed a very high reversible capacity of 570 mA h g–1 (based on the anode weight) at an applied current density of 0.1 A g–1 with more than 50% retention of capacity after 100 cycles. This work offers a favorable design of electrode material, namely, mix-phase tin oxide-nanocarbon matrix, exhibiting adequate electrochemical performance for Li storage applications.

     

  • Engineering hydrophobic-aerophilic interface to boost N2 diffusion and reduction through functionalization of fluorine in second coordination sphere. (Chemical Science, 2023, 14, 8936 - 8945)

    Ammonia is a crucial biochemical raw material for nitrogen containing fertilizers and a hydrogen energy carrier obtained from renewable energy sources. Electrocatalytic ammonia synthesis is a renewable and less-energy intensive way as compared to the conventional Haber–Bosch process. The electrochemical nitrogen reduction reaction (eNRR) is sluggish, primarily due to the deceleration by slow N2 diffusion, giving rise to competitive hydrogen evolution reaction (HER). Herein, we have engineered a catalyst to have hydrophobic and aerophilic nature via fluorinated copper phthalocyanine (F-CuPc) grafted with graphene to form a hybrid electrocatalyst, F-CuPc-G. The chemically functionalized fluorine moieties are present in the second coordination sphere, where it forms a three-phase interface. The hydrophobic layer of the catalyst fosters the diffusion of N2 molecules and the aerophilic characteristic helps N2 adsorption, which can effectively suppress the HER. The active metal center is present in the primary sphere available for the NRR with a viable amount of H+ to achieve a substantially high faradaic efficiency (FE) of 49.3% at −0.3 V vs. RHE. DFT calculations were performed to find out the rate determining step and to explore the full energy pathway. A DFT study indicates that the NRR process follows an alternating pathway, which was further supported by an in situ FTIR study by isolating the intermediates. This work provides insights into designing a catalyst with hydrophobic moieties in the second coordination sphere together with the aerophilic nature of the catalyst that helps to improve the overall FE of the NRR by eliminating the HER.

  • Lewis acid-dominated aqueous electrolyte acting as co-catalyst and overcoming N2 activation issues on catalyst surface (Proceedings of the National Academy of Sciences (PNAS), 2022, 119 (33) e2204638119)

    The electrochemical ammonia synthesis is majorly limited by the poor solubility of N2 in the aqueous electrolyte environment, besides the competitive hydrogen evolution reaction. In an attempt to solve these issues, the “ambient” conditions are mostly overlooked. This work is an approach to examine the long-standing issues about the solubility of N2 in aqueous medium and achievement of industrial-scale production rate of ammonia by nitrogen reduction reaction (NRR) at ambient condition. Mechanistic investigation shows that Lewis acid (BF3) has the capability to hold N2 by forming a Lewis acid-base adduct, which further adsorbs on catalyst surface by a push-pull electronic effect. Therefore, this report may open new vistas to studying and understanding the role of the NRR in aqueous medium.

  • Ultralong cycle life and outstanding capacitive performance of 10.8 V metal-free micro-supercapacitor with highly conducting and robust laser-irradiated graphene for integrated storage device (Energy Environ. Sci., 2019, 12, 2507-2517)

    Dr. Ramendra S. Dey and his research team have recently shown that interconnected porous graphene plays a crucial role as supercapacitive material as well as a current collector in developing metal free microsupercapacitor (MSC) because of its unique structure and superior conductivity. Electrochemical reduction followed by use of a laser irradiation method shows advances for the fabrication of the conductive graphene-based robust device. The laser irradiation method is capable of healing the defects with fused interconnected sheets, as a result, high conductivity and improved crystallinity of the laser irradiated graphene (LIG) sample is achieved. The LIG film on a flexible substrate was patterned with the aim to develop an on-chip flexible MSC, which offers a large cell voltage of 10.8 V and 100% retention of the initial capacitance after 100 000 continuous cycles. The array of LIG-MSC was integrated with a commercial solar cell module for hybrid energy harvesting and as a storage device. This study provides an effective strategy to build a metal-free supercapacitor with exceptional cycle life and facilitates progress towards self-sustainable energy in the future. 

Current Group Members

  • TANIYA GUPTA

    TANIYA GUPTA

    Email: taniya.ph23230@inst.ac.in

    Reg. No.: PH23230

  • ROBIN SINGH

    ROBIN SINGH

    Email: robin.ph23220@inst.ac.in

    Reg. No.: PH23220

  • MS. ARSHDEEP KAUR

    MS. ARSHDEEP KAUR

    Email: arshdeep.ph18206@inst.ac.in

    Reg. No.: PH18206

  • MR. SURAJIT SAMUI

    MR. SURAJIT SAMUI

    Email: surajit.ph22211@inst.ac.in

    Reg. No.: PH22211

  • MR. BHARAT BHUSHAN UPRETI

    MR. BHARAT BHUSHAN UPRETI

    Email: bharat.ph21235@inst.ac.in

    Reg. No.: PH21235

  • MR. GREESH KUMAR

    MR. GREESH KUMAR

    Email: greesh.ph21204@inst.ac.in

    Reg. No.: PH21204

  • MS. SAKSHI

    MS. SAKSHI

    Email: sakshi.ph19231@inst.ac.in

    Reg. No.: PH19231

  • MS. ASHMITA BISWAS

    MS. ASHMITA BISWAS

    Email: ashmita.ph19211@inst.ac.in

    Reg. No.: PH19211

Alumni

  • MS. AYUSHI SHUKLA

    MS. AYUSHI SHUKLA

    Reg. No.: PH18205

    Designation: PhD Scholar

    Aug 2018 - Feb 2024

  • SOUMYADIP SHARANGI

    SOUMYADIP SHARANGI

    Reg. No.: PJRF

    Designation: Project JRF/SRF

    Mar 2023 - Dec 2023

  • MS. TRIBANI BORUAH

    MS. TRIBANI BORUAH

    Reg. No.: PH21224

    Designation: Project JRF/SRF

    Aug 2021 - Dec 2022

  • MS.NAVPREET

    MS.NAVPREET

    Reg. No.: PH17220

    Designation: PhD Scholar

    Jan 2018 - Jun 2022

  • MS. MANISHA

    MS. MANISHA

    Reg. No.: PH18204

    Designation: PhD Scholar

    Aug 2018 - Apr 2022

  • DR. SABUJ KANTI DAS

    DR. SABUJ KANTI DAS

    Reg. No.: RA-01-202103

    Designation: Post Docs/RA

    Jan 2021 - Apr 2023

  • MS. TANIYA PURKAIT

    MS. TANIYA PURKAIT

    Reg. No.: 2016-EZ-218 (CSIR-SRF)

    Designation: PhD Scholar

    Aug 2016 - Feb 2021

  • MR. SUBHAJIT SARKAR

    MR. SUBHAJIT SARKAR

    Reg. No.:

    Designation: Project JRF/SRF

    Aug 2018 - Feb 2021

  • 1.

    Elucidating the oxygen reduction reaction kinetics on defect engineered nanocarbon electrocatalyst: Interplay between N-dopant and defect sites. , Sakshi Bhardwaj, Samadhan Kapse, Soirik Dan, Ranjit Thapa* and Ramendra Sundar Dey* , J. Mater. Chem. A , 2023, , DOI: 10.1039/D3TA00871A
  • 2.

    Interfacially stacked covalent porous polymer on graphene favors electronic mobility: Ensuring accelerated oxygen reduction reaction kinetics by in situ study , Greesh Kumar,† Sabuj Kanti Das,† Erakulan E. Siddharthan, Ashmita Biswas, Sakshi Bhardwaj, Manisha Das, Ranjit Thapa and Ramendra Sundar Dey* , J. Mater. Chem. A , 2023 , 11 , 18740
  • 3.

    Laser-irradiated carbonized polyaniline-N-doped graphene heterostructure improving the cyclability of on-chip micro-supercapacitor , Bharat Bhushan Upreti, Navpreet Kamboj, Ramendra Sundar Dey* , Nanoscale , 2023 , 15 , 15268
  • 4.

    Engineering hydrophobic–aerophilic interfaces to boost N2 diffusion and reduction through functionalization of fluorine in second coordination spheres , Sakshi Bhardwaj, Sabuj Kanti Das, Ashmita Biswas, Samadhan Kapse, Ranjit Thapa and Ramendra Sundar Dey * , Chemical Science , 2023 , 10.1039/D3SC03002D , 10.1039/D3SC03002D
  • 5.

    Ample Lewis Acidic Sites in Mg2B2O5 Facilitate N2 Electroreduction through Bonding–Antibonding Interactions , Ashmita Biswas, Bikram Ghosh, Kathi Sudarshan, Santosh K. Gupta*, and Ramendra Sundar Dey* , Inorganic Chemistry , 2023 , 10.1021/acs.inorgchem.3c02389 , 10.1021/acs.inorgchem.3c02389
  • 6.

    Coordination Engineering of Dual Co, Ni Active Sites in N-Doped Carbon Fostering Reversible Oxygen Electrocatalysis , Greesh Kumar and Ramendra Sundar Dey* , Inorganic Chemistry , 2023 , 33 , 13519 , 10.1021/acs.inorgchem.3c01925
  • 7.

    Metal-free on-chip battery-supercapacitor hybrid system based on rationally designed highly conducting laser-irradiated graphene-based electrodes. , Navpreet Kamboj, Bharat Bhushan Upreti, Nitish Kumar, Ramendra Sundar Dey* , ACS Sustainable Chemistry & Engineering , 2023 , DOI: 10.1021/acssuschemeng.2c06927
  • 8.

    Engineering catalytically active sites by sculpting artificial edges on MoS2 basal plane for dinitrogen reduction at a low overpotential. , Renu Rani†, Ashmita Biswas†, Raihan Ahammed, Taniya Purkait, Anirban Kundu, Subhajit Sarkar, Mamta Raturi, Abir De Sarkar*, Ramendra Sundar Dey*, Kiran Shankar Hazra*, , Small , 2023 , 2206357.
  • 9.

    Refining the Spectroscopic Detection Technique: A Pivot in the Electrochemical Ammonia Synthesis. , Ashmita Biswas, Bikram Ghosh, Ramendra Sundar Dey* , Langmuir , 2023 , 39 , 3810-3820. , https://doi.org/10.1021/acs.langmuir.3c00201
  • 10.

    The Versatility of the Dynamic Hydrogen Bubble Template Derived Copper Foam on the Emerging Energy Applications: Progress and Future Prospects: , Manisha Das†, Ashmita Biswas†, Taniya Purkait†, Tribani Boruah†, Sakshi Bhardwaj, Sabuj Kanti Das, Ramendra Sundar Dey* , (2022) , doi.org/10.1039/D2TA01355J: , J. Mater. Chem. A , doi.org/10.1039/D2TA01355J
  • 11.

    Electronic Interplay: Synergism of Binary Transition Metals and Role of M-N-S Site Towards Oxygen Electrocatalysis: , Manisha Das†, Ashmita Biswas†, Ramendra Sundar Dey* , (2022) , Chemical Communications , doi.org/10.1039/D1CC06050C
  • 12.

    Electrochemical Growth and Formation Mechanism of Cu2Se/CoSe2-Based Bifunctional Electrocatalyst: A Strategy for the Development of Efficient Material toward Water Electrolysis: , Manisha Das, Greesh Kumar, Ramendra Sundar Dey* , (2022) , ACS Appl. Energy Mater , doi.org/10.1021/acsaem.1c03497
  • 13.

    Dual Active Sites in Triazine-Based Covalent Organic Polymeric Framework Promoting Oxygen Reduction Reaction: , Tribani Boruah,† Sabuj Kanti Das,† Greesh Kumar,† Saptarsi Mondal, Ramendra Sundar Dey* , (2022) , Chemical Communications , doi.org/10.1039/D2CC00865C
  • 14.

    Strategic modulation of target specific isolated Fe,Co single-atom active sites for oxygen electrocatalysis impacting high power Zinc-air battery: , Subhajit Sarkar†, Ashmita Biswas†, Erakulan E. S., Ranjit Thapa, Ramendra Sundar Dey* , (2022) , ACS Nano , doi.org/10.1021/acsnano.2c00547
  • 15.

    Exploring the chemistry of “Organic/water-in-salt” electrolyte in graphene-polypyrrole based high-voltage (2.4 V) microsupercapacitor: , Navpreet Kamboj, Ramendra Sundar Dey* , (2022) , 421: 140499 , Electrochimica Acta, , 10.1016/j.electacta.2022.140499
  • 16.

    Electrochemical ammonia synthesis: fundamental practices and recent developments in transition metal boride, carbide and nitride-class of catalysts: , Ashmita Biswas† Sakshi Bhardwaj† , Tribani Boruah† and Ramendra Sundar Dey* , (2022) , 3: 5207 , Mater. Adv. , 10.1039/D2MA00279E
  • 17.

    Three-dimensional nickel and copper-based foam-in-foam architecture as an electrode for efficient water electrolysis: , Manisha Das†, Zubair Bashir Khan†, Manami Banerjee, Ashmita Biswas and Ramendra Sundar Dey* , (2022) , Catalysis Today, , 10.1016/j.cattod.2022.07.004
  • 18.

    Lewis acid–dominated aqueous electrolyte acting as co-catalyst and overcoming N2 activation issues on catalyst surface: , Ashmita Biswas, Samadhan Kapse, Bikram Ghosh, Ranjit Thapa, Ramendra Sundar Dey* , (2022) , 119 (33): e2204638119 , Proc. Natl. Acad. Sci. (PNAS) , 10.1073/pnas.2204638119
  • 19.

    Facile Single Step Electrochemical Growth of Ni3P on Carbon Cloth for Highly Efficient Hydrogen Evolution Reaction: , Manisha Das†, Zubair Bashir Khan†, Navpreet Kamboj, Manami Banerjee and Ramendra Sundar Dey* , (2022) , 169: 064511 , Journal of The Electrochemical Society , 10.1149/1945-7111/ac76e7
  • 20.

    A novel chemical approach for synthesizing highly porous graphene analogue and its composite with Ag nanoparticles for efficient electrochemical oxygen reduction: , Sabuj Kanti Das, Sauvik Chatterjee, Arnab Banerjee, Greesh Kumar, Astam Kumar Patra, Ramendra Sundar Dey*, Amlan J. Pal*, Asim Bhaumik* , (2022) , 451: 138766 , Chemical Engineering Journal , 10.1016/j.cej.2022.138766
  • 21.

    Tuning the Electronic Structure of Cobalt Selenide on Copper Foam by Introducing a Ni Buffer Layer for Highly Efficient Electrochemical Water Splitting: , Manisha Das, Ashmita Biswas, Zubair Bashir Khan, Ramendra Sundar Dey* , (2022) , Inorganic Chemistry , 10.1021/acs.inorgchem.2c02325
  • 22.

    Ultrafine mix-phase SnO-SnO2 nanoparticles anchored on reduced graphene oxide boost reversible Li-ion storage capacity beyond theoretical limit: , Navpreet Kamboj†, Bharati Debnath†, Sakshi Bhardwaj, Tanmoy Paul, Nikhil Kumar, Satishchandra Ogale*, Kingshuk Roy*, Ramendra Sundar Dey* , (2022) , ACS Nano , 10.1021/acsnano.2c07008
  • 23.

    Inter-Electronic Interaction between Ni and Mo in Electrodeposited Ni–Mo–P on 3D Copper Foam Enables Hydrogen Evolution Reaction at Low Overpotential: , Manisha Das, Zubair Bashir Khan, Ashmita Biswas, Ramendra Sundar Dey* , (2022) , 61: 18253 , Inorg. Chem. , 10.1021/acs.inorgchem.2c03074
  • 24.

    Oxygen Functionalization-Induced Charging Effect on Boron Active Sites for High-Yield Electrocatalytic NH3 Production: , Ashmita Biswas, Samadhan Kapse, Ranjit Thapa, Ramendra Sundar Dey* , (2022) , 14: 214 , Nano-Micro Letters , 10.1007/s40820-022-00966-7
  • 25.

    Metal-Free Pyrene-Based Conjugated Microporous Polymer Catalyst Bearing N- and S-Sites for Photoelectrochemical Oxygen Evolution Reaction: , Sabuj Kanti Das, Sanjib Shyamal, Manisha Das, Saptarsi Mondal, Avik Chowdhury, Debabrata Chakraborty, Ramendra Sundar Dey, Asim Bhaumik* , (2021) , Front. Chem., 9: 803860 , doi: 10.3389/fchem.2021.803860
  • 26.

    Alteration of Electronic Band Structure via a Metal–Semiconductor Interfacial Effect Enables High Faradaic Efficiency for Electrochemical Nitrogen Fixation: , Ashmita Biswas, Surajit Nandi, Navpreet Kamboj, Jaysree Pan, Arghya Bhowmik, Ramendra Sundar Dey* , (2021) , ACS Nano , doi.org/10.1021/acsnano.1c08652
  • 27.

    Electrochemically grown highly crystalline single-phase Ni3P superstructure accelerating ionic diffusion in rechargeable Ni–Zn battery: , Navpreet Kamboj, Ramendra Sundar Dey* , (2021) , 512: 230527 , Journal of Power Sources , 10.1016/j.jpowsour.2021.230527
  • 28.

    Nanostructured Cu foam and its Derivatives: Emerging Materials for Heterogeneous Conversion of CO2 to Fuels: , Sakshi bhardwaj, Manisha Das, Ashmita Biswas, Ramendra Sundar Dey* , (2021) , 5: 2393 - 2414 , Sustainable Energy & Fuels , doi.org/10.1039/D1SE00085C
  • 29.

    Supercapacitive behaviour of a novel nanocomposite of 3,4,9,10-perylenetetracarboxylic acid incorporated Captopril-Ag Nanocluster decorated on graphene nanosheets: , Tapas Goswami‡*, Navpreet Kamboj‡, Amarnath Bheemaraju, Aditya Kataria, Ramendra Sundar Dey* , (2021) , 2: 1358-1368 , Materials Advances , DOI: 10.1039/D0MA00527D
  • 30.

    A No-Sweat Strategy for Graphene-Macrocycle Co-assembled Electrocatalyst toward Oxygen Reduction and Ambient Ammonia Synthesis: , Ashmita Biswas, Subhajit Sarkar, Manisha Das, Navpreet Kamboj, Ramendra Sundar Dey* , (2020) , Inorg. Chem. , 10.1021/acs.inorgchem.0c02176
  • 31.

    Unveiling the Potential of an Fe Bis(terpyridine) Complex for Precise Development of an Fe-N-C Electrocatalyst to Promote the Oxygen Reduction Reaction: , Subhajit Sarkar, Ashmita Biswas , Navpreet Kamboj, Ramendra Sundar Dey* , (2020) , Inorg. Chem. , 10.1021/acs.inorgchem.0c01879
  • 32.

    Fabrication of a membrane-less non-enzymatic glucose-air fuel cell with graphene-cobalt oxide nanocomposite anode and Fe, N-doped biomass carbon cathode: , Taniya Purkait, Ramendra Sundar Dey* , (2020) , 874: 1144672 , Journal of Electroanalytical Chemistry , 10.1016/j.jelechem.2020.114467
  • 33.

    Polymer‐assisted electrophoretic synthesis of N‐doped graphene‐polypyrrole demonstrating oxygen reduction reaction with excellent methanol crossover impact and durability: , Ghulam Mohmad, Subhajit Sarkar, Ashmita Biswas, Kingshuk Roy, Ramendra Sundar Dey* , (2020) , 10.1002/chem.202002526: , Chemistry - A European Journal , 10.1002/chem.202002526
  • 34.

    Revealing the Structural Aspect of Ultrastable Self-Supportive Bifunctional Electrocatalyst for Solar-Driven Water Splitting: , Manisha Das, Navpreet Kamboj, Taniya Purkait, Subhajit Sarkar, Ramendra Sundar Dey* , (2020) , 124: 13525–13534 , J. Phys. Chem. C , 10.1021/acs.jpcc.0c01409
  • 35.

    Unravelling the Role of Fe–Mn Binary Active Sites Electrocatalyst for Efficient Oxygen Reduction Reaction and Rechargeable Zn-Air Batteries: , Subhajit Sarkar, Ashmita Biswas, Taniya Purkait, Manisha Das, Navpreet Kamboj, Ramendra Sundar Dey* , (2020) , Inorganic Chemistry, 59: 5194–5205 , 10.1021/acs.inorgchem.0c00446
  • 36.

    Electrochemically customized assembly of a hybrid xerogel material via combined covalent and non-covalent conjugation chemistry: an approach for boosting the cycling performance of pseudocapa: , Taniya Purkait, Dimple, Navpreet Kamboj, Manisha Das, Subhajit Sarkar, Abir De Sarkar, Ramendra Sundar Dey* , (2020) , 8: 6740-6756 , Journal of Materials Chemistry A , 10.1039/D0TA02477E
  • 37.

    The role of exfoliating solvents for control synthesis of few-layer graphene-like nanosheets in energy storage applications: Theoretical and experimental investigation: , Taniya Purkait, Raihan Ahammad, Abir De Sarkar, Ramendra Sundar Dey* , (2020) , 509: 145375 , Applied Surface Science , 10.1016/j.apsusc.2020.145375
  • 38.

    Universal Approach for Electronically Tuned Transition-Metal-Doped Graphitic Carbon Nitride as a Conductive Electrode Material for Highly Efficient Oxygen Reduction Reaction: , Subhajit Sarkar, Navpreet Kamboj, Manisha Das, Taniya Purkait, Ashmita Biswas, Ramendra Sundar Dey* , (2020) , 59: 1332-1339 , Inorganic Chemistry , 10.1021/acs.inorgchem.9b03042
  • 39.

    Facile one step synthesis of Cu-g-C3N4 electrocatalyst realized oxygen reduction reaction with excellent methanol crossover impact and durability: , Subhajit Sarkar, S.S. Sumukh, Kingshuk Roy, Navpreet Kamboj, Taniya Purkait, Manisha Das, Ramendra Sundar Dey* , (2019) , 558: 182–189. , Journal of Colloid And Interface Science , 10.1016/j.jcis.2019.09.107
  • 40.

    Single-phase Ni5P4-Copper foam superhydrophilic and aerophobiccore-shell nanostructures for efficient hydrogen evolution reaction: , Manisha Das, Nityasagar Jena, Taniya Purkait, Navpreet Kamboj, Abir De Sarkar, Ramendra Sundar Dey* , (2019) , 10.1039/C9TA06729A: , Journal of Materials Chemistry A , 10.1039/C9TA06729A
  • 41.

    Ultralong cycle life and outstanding capacitive performance of 10.8 V metal-free micro-supercapacitor with highly conducting and robust laser-irradiated graphene for integrated storage device: , Navpreet Kamboj, Taniya Purkait, Manisha Das, Subhajit Sarkar, Kiran Shankar Hazra, Ramendra Sundar Dey* , (2019) , 12: 2507-2517 , Energy & Environmental Science , 10.1039/C9EE01458F
  • 42.

    Three-dimensional for electrochemical detection of Cadmium in Klebsiella study the influence of Cadmium uptake in rice plant: , Soumik Mitra, Taniya Purkait, Krishnendu Pramanik, Tushar Kanti Maiti,* Ramendra Sundar Dey* , (2019) , 103: 109802 , Materials Science & Engineering C , 10.1016/j.msec.2019.109802
  • 43.

    Characterization of Cd-resistant Klebsiella michiganensis MCC3089 and its potential for rice seedling growth promotion under Cd stress: , Soumik Mitra, Krishnendu Pramanik, Pallab Ghosh, Tithi Soren, Anumita Sarkar, Ramendra Sundar Dey, Sanjeev Pandey, Tushar Kanti Maiti* , (2018) , 210: 12-25 , Microbiological Research , 10.1016/j.micres.2018.03.003
  • 44.

    All-porous heterostructure of reduced graphene oxidepolypyrrole-nanoporous gold for planar flexible supercapacitor showing outstanding volumetric capacitance and energy density: , Taniya Purkait, Guneet Singh, Navpreet Kamboj, Manisha Das, Ramendra Sundar Dey* , (2018) , 6: 22858 - 22869. , J. Mater. Chem. A , 10.1039/C8TA07627H
  • 45.

    High-performance flexible supercapacitors based on electrochemically tailored three-dimensional reduced graphene oxide networks: , Taniya Purkait, Guneet Singh, Dinesh Kumar, Mandeep Singh, Ramendra Sundar Dey* , (2018) , 8: 640 , Sci. Rep. , 10.1038/s41598-017-18593-3
  • 46.

    Functional Materials for Energy and Environment: Progress and Perspective.: , Kalisadhan Mukherjee, Ramendra Sundar Dey, Chandi Charan Malakar, Biplab Paul , (2017) , 6: 49–51. , Energy Environ. Focus , 10.1166/eef.2017.1244
  • 47.

    One-step coelectrodeposition-assisted layer- by-layer assembly of gold nanoparticles and reduced graphene oxide and its self-healing three-dimensional nanohybrid for an ultrasensitive DNA sen: , Jayakumar Kumarasamy, María Belén Camarada, Dharuman Venkatraman,* Huangxian Ju, Ramendra Sundar Dey*, Yangping Wen* , (2017) , 10: 1196-1206 , Nanoscale , 10.1039/C7NR06952A
  • 48.

    Large area few-layered graphene with scalable preparation from waste biomass for high-performance supercapacitor: , Taniya Purkait , Guneet Singh , Mandeep Singh , Dinesh Kumar, Ramendra Sundar Dey* , (2017) , 7: 615239 , Sci Rep. , 10.1038/s41598-017-15463-w
  • 49.

    Editorial: A Special Issue on Materials for Chemical Sensing and Renewable Energy: , Kalisadhan Mukherjee, Ramendra Sundar Dey, Qijin Chi , (2016) , 5: 1-3 , Rev. Adv. Sci. Eng , 10.1166/rase.2016.1110
  • 50.

    Carbonaceous materials for next-generation flexible supercapacitors: , Dinesh Kumar, Ramendra Sundar Dey* , (2016) , 5: 32-50.2 , Rev. Adv. Sci. Eng. , 10.1166/rase.2016.1106
  • 51.

    Approaching the theoretical capacitance of graphene through copper foam integrated three-dimensional graphene networks: , Ramendra Sundar Dey, Hans A. Hjuler, Qijin Chi , (2015) , 3: 6324-6329 , Journal of Material Chemistry A , 10.1039/C5TA01112D
  • 52.

    Enzyme-integrated Cholesterol Biosensing Scaffold Based on in situ Synthesized Reduced Graphene Oxide and Dendritic Pd Nanostructure: , Ramendra Sundar Dey, C. R. Raj , (2014) , 62: 357-364 , Biosensors and Bioelectronics , 10.1016/j.bios.2014.06.063
  • 53.

    Redox Functionalized Graphene Oxide Architecture for the Development of Amperometric Biosensing Platform: , Ramendra Sundar Dey, C. Retna Raj , (2013) , 5: 4791-4798 , ACS Applied Materials and Interfaces , 10.1021/am400280u
  • 54.

    A hybrid functional nanoscaffold based on reduced graphene oxide–ZnO for the development of an amperometric biosensing platform: , Ramendra Sundar Dey, C. Retna Raj , (2013) , 3: 25858-25864 , RSC Advances , 10.1039/C3RA43773F
  • 55.

    Nanomaterial-based functional scaffolds for amperometric sensing of bioanalytes: , Ramendra Sundar Dey, Raj Kumar Bera, C. R. Raj , (2013) , 405: 3431-3448 , Analytical and Bioanalytical Chemistry , 10.1007/s00216-012-6606-2
  • 56.

    Electrochemistry of surface wired cytochrome c and bioelectrocatalytic sensing of superoxide: , Susmita Behera, Ramendra Sundar Dey, Manas Kumar Rana, C. Retna Raj , (2013) , 125: 275-282 , Journal of Chemical Sciences , 10.1007/s12039-013-0379-9
  • 57.

    Flow injection amperometric sensing of uric acid and ascorbic acid using the self-assembly of heterocyclic thiol on Au electrode: , Ramendra Sundar Dey, Susmita Gupta, Rupankar Paira, Shen-Ming Chen, C. Retna Raj , (2012) , 16: 173-178 , Journal of Solid State Electrochemistry , 10.1007/s10008-011-1311-1
  • 58.

    Polyelectrolyte-Functionalized Gold Nanoparticle Scaffold for the Sensing of Heparin and Protamine in Serum: , Ramendra Sundar Dey, C. Retna Raj , (2012) , 7: 417-424 , Chemistry: an Asian Journal , 10.1002/asia.201100686
  • 59.

    A rapid room temperature chemical route for the synthesis of graphene, metal-mediated reduction of graphene oxide: , Ramendra Sundar Dey, Saumen Hajra, R. K. Sahu, C. Retna Raj, M. K. Panigrahi , (2012) , 48: 1787-1789 , Chemical Communications , 10.1039/C2CC16031E
  • 60.

    Electrochemically Derived Redox Molecular Architecture-A Novel Electrochemical Interface for Voltammetric Sensing.: , Ramendra Sundar Dey, Susmita Gupta, Rupankar Paira, C. Retna Raj , (2010) , 2: 1355-1360 , ACS Applied Materials and Interfaces
  • 61.

    Bioanalytical Applications of Au Nanoparticles.Bikash: , Bikash K. Jena, Sourov Ghosh, Rajkumar Bera, Ramendra S. Dey, Ashok K. Das, C. Retna Raj , (2010) , 4: 41-52 , Recent Patents on Nanotechnology , 10.2174/187221010790712075
  • 62.

    Development of Amperometric Cholesterol Biosensor Based on Graphene-Pt Nanoparticle Hybrid Material: , Ramendra Sundar Dey, C. Retna Raj , (2010) , 114: 21427-21433 , Journal of Physical Chemistry C
  • 1. Disposable Cholesterol Biosensor Based On Redox Mediator Functionalized Graphene Oxide Nanoarchitecture And The Preparation Thereof: , : Ramendra Sundar Dey, C. Retna Raj, (2014) , Indian Pat. Appl, IN 2013KO00563 A, 20141121.
  • 2. A Method For Synthesizing Few-layered Graphene From Biomass: , Ramendra Sundar Dey, Manami Banerjee, (2022) , 1970-01-01 , Indian Patent, Application No. 202241022923
  • 3. An Electrocatalyst And A Process For Its Preparation. , Ramendra Sundar Dey, Ashmita Biswas , 1970-01-01 , Indian Patent Application No. 202011047861 A, Date: 11-03-2020. Full specification filed on 22-09-2021
  • 4. An Electrocatalyst, Method Of Preparation, And Applications Thereof. , Ramendra Sundar Dey, Sakshi Bhardwaj, Sabuj Kanti Das, Ashmita Biswas , 1970-01-01 , Indian Patent Application No. 20231100511,
  • 5. Electrochemical Cell For Generating Ammonia. , Ramendra Sundar Dey, Ashmita Biswas , 1970-01-01 , Indian Patent Application No. 202211074333,
  • 1.

    The Role of Transition Metal-Based Electrocatalyst Toward Efficient Electrochemical Hydrogen Fuel Generation: , Tribani Boruah, Ramendra Sundar Dey* , (2022) , 220 , John Wiley & Sons
  • 2.

    Carbonaceous Materials and Future Energy: Clean and Renewable Energy Sources,: , Ramendra Sundar Dey, Taniya Purkait, Navpreet Kamboj, Manisha Das, , (2019) , ISBN 9780815347880 , CRC Press, Taylor & Francis Group , 10.1201/9781351120784
  • 3.

    Architecture and Applications of Functional Three-dimensional Graphene Networks in Graphene Materials: , Ramendra Sundar Dey and Qijin Chi , (2015) , 1: 67-99. , Fundamentals and Emerging Applications
  • 4.

    Development of Biosensors from Polymer Graphene Composites in Graphene-Based Polymer Nanocomposites in Electronics: , Springer, Germany,Ramendra Sundar Dey , (2015) , 1: 277 , Electronics
  • 1.

    A 2D covalent organic framework as a metal-free electrode towards electrochemical oxygen reduction reaction: , Sabuj Kanti Das, Greesh Kumar, Manisha Das, Ramendra Sundar Dey* , (2022) , Materials Today: Proceedings , doi.org/10.1016/j.matpr.2022.02.370
  • 2.

    Laser-irradiated graphene-polymer contact electrification as a sustainable power source in metal-free triboelectric nanogenerator: , Navpreet Kamboj, K. Athira, Ramendra Sundar Dey* , (2022) , Materials Today: Proceedings , doi.org/10.1016/j.matpr.2022.02.415

    • Associate Fellow of Indian National Academy of Sciences (INSA) New Delhi, 2023
    • Associate Editor of Frontiers in Materials, for the section Carbon-Based Materials, from 2022-ongoing.

    Selected for Nanoscale Emerging Investigator 2023.

    Emergent Materials Scientist (EMS) Award 2023 by IIT Roorkee.

    Featured in the ACS Applied Energy Materials Early Career Energy Scientists 2022.

    Member of Indian National Young Academy of Sciences (INYAS) for 2021-2026

    Associate, Indian Academy of Sciences (IASc) Bengaluru for 2020-2023

    Selected for Journal of Materials Chemistry A Emerging Investigator 2019.

    Selected for 2023 Journal of Chemical Physics Emerging Investigator 

    CRSI Life member (Member ID: LM2782)

    INSPIRE Faculty Fellowship Award 2015.

    H. C. Ørsted and Marie Sklodowska-Curie COFUND Postdoc fellowship, 2013 from DTU, Denmark.

    Guest Editor: A special issue entitled ‘Materials for chemical sensing and renewable energy: Recent trends’ in ‘Reviews in Advanced Sciences and Engineering’, American Scientific Publishers, Vol. 5, No. 1, 2016.

    Member: International Society of Electrochemistry (Member ID: 13302).

    Life member: Indian Society of Electroanalytical Chemistry (Member ID: LM184).

    Member of ACS (American Chemical Society).

     

  • Postdoctoral research:H. C. Ørsted Postdoc fellow, Technical University of Denmark (DTU),, Denmark (April 2013 to March 2015 )

  • Scientist-B:Institute of Nano Science & Technology,, Mohali, India. (July 2015 to January 2019 )

  • Scientist C:Institute of Nano Science & Technology,, Mohali, India (January 2019 to December 2021 )

  • Scientist D:INST Mohali, Institute of Nano Science and Technology (INST), Mohali Knowledge City, Sector 81, S.A.S. Nagar, Mohali-140306, Punjab (January 2022 to Present till date )

  • Title: Towards the development of hybrid supercapacitor-biofuel cell technology and devicesle solid-state supercapacitor from nano-engineered carbonaceous materials

    PI: Dr. Ramendra Sundar Dey

    Funding Amount: 35 L

    Tenure: 5 years

    Funding Agency: DST/INSPIRE

  • Title: New class of flexible solid-state supercapacitor from nano-engineered carbonaceous materials

    PI: Dr. Ramendra Sundar Dey

    Funding Amount: 28 L

    Tenure: 3 years

    Funding Agency: DST/SERB/EMR

  • Title: Design strategies for the development of non-precious metal-based air electrode for rechargeable metal-air batteries: Unveiling the chemistry of active sites

    PI: Dr. Ramendra Sundar Dey

    Funding Amount: 38.9L

    Tenure: 3 years

    Funding Agency: SERB CRG

  • Title: Bio-inspired carbon nanomaterial from agricultural waste biomass

    PI: Dr. Ramendra Sundar Dey

    Tenure: 1 year

    Funding Agency: Kandiyar Inc., Alangudi

    Additional Info: We have developed a technology for how to produce graphene from waste biomass.

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