rosy.chy's picture
Dr. Rosy
Assistant Professor
Department of Chemistry IIT (BHU)
Area of Interest: 
Electrochemistry, Electroanalytical Chemistry, Voltammetric Sensors, Electrochemical Energy Storage, Atomic Layer Deposition, Nano materials

Extreme involvement of electrochemistry in day-to-day life starting from the batteries fueling your mobile phones and ending in the human heart (pacemakers), and, a plethora of other fronts like glucometer for diabetic patients, encouraged me as a young student to explore the vast field of electrochemistry.

Consequently, During my past research career of more than 8 years, I have opted electrochemistry as a tool to explore the following fields

1. Development of Voltammetric Sensors 
The analysis of neurotransmitters and drugs is of great significance for the clinical diagnosis as well as other aspects of medical science, as both possess the potential to crucially affect the healthy living of mankind. Any alteration in the concentration of such molecules can be taken as an indicator of disturbed body systems leading to many acute and chronic pathological conditions. Hence, as an electroanalyst, my focus is to develop highly sensitive, quick and reliable sensors capable of selectively determining the metallic impurities, pesticides, fertilizers, neurotransmitters and drugs of interest using voltammetric methods.

The goal of this research project is to tune the sensitivity and selectivity of conventional substrates like glassy carbon, edge plane pyrolytic graphite, etc., utilizing a variety of fabrication methods including, electro-polymerization, electrodeposition, and, electrochemical reduction of various functionalized nanomaterials to impart memory, affinity and higher electroactive surface area to these substrates which later can be used to develop highly sensitive, and, selective, surface-modified voltammetric sensors. 

Links to relevant papers related to the aforementioned research problem

2. Extending Battery Life by Engineering the Interfaces 
Lithium-ion batteries are one of the most important inventions of modern chemistry which have successfully made the world mobile.
Deeply penetrated into human life, it won't be wrong to say that the life and efficiency of LIBs control the output of a normal human being at work.

Therefore, it is very important to investigate two main issues related to batteries:
(1) Why do batteries fail or perform with less efficiency?
(2) What we can do for improving the battery performance?

It is now widely accepted that battery durability and cycle life depend on the complex interfacial interactions between the electrodes and the electrolyte solution. Consequently, by interfacial engineering of rationally designed electrodes, the interfacial chemistry of highly reactive surfaces such as LCO, NCM 811, Li and Mn-rich NCM (LMR-NCM), air cathodes can be moderated to significantly improve the battery performance. 

Therefore, the objective of this research approach is to stabilize the interface by designing a protection layer commonly known as “artificial solid electrolyte interface (ASEI)” by using deposition techniques, surface treatment methods, and variation of salts for mitigating the material degradation to a significant extent. An artificial protection layer on the electrode materials can prevent their degradation 1) by stabilizing the functional interface and addressing the deleterious reactions between electrode and electrolyte, and, 2) inhibition of transition metal ion dissolution and structural deformation. Such strategies address all the critical challenges associated with the complex electrode material and thus provide a promising research direction for choosing the relevant methodology for surface protection.

Links to few relevant papers related to this research problem:

 Feb 2021
Assistant Professor 
Department of Chemistry, IIT (BHU) Varanasi
April 2017 -  Jan 2021 Post-Doctoral Researcher at Bar-Ilan University, Israel
Advisors: Prof. Malachi Noked and Prof. Doron Aurbach
Jan 2013 - Feb 2017 Ph.D. Electroanalytical Chemistry
Indian Institute of Technology Roorkee
Supervisor: Prof. R.N.Goyal
July 2010 - May 2012 M.Sc. Physical Chemistry
Hindu College, University of Delhi
July 2007 - May 2010 B.Sc. Chemistry (Hons.)
Hindu College, University of Delhi

Aug 2021:           ACS Best Oral Presentation Award
                             American Chemical Society

Dec 2020:          Intel 2020 Excellence Award for Outstanding Female Scientist
                             Awarded by Israel Vacuum Society

Sept 2020:         Listed as Thought Leaders by AZO Materials

April 2020:        Post-Doctoral position offered by Dr. N. P. Dasgupta, University of Michigan, USA (Declined)
Feb 2020:           Post-Doctoral position offered by Prof. Yury Gogotsi, Drexel University, USA (Declined)
Oct 2019:            Sabarmati Seminar Candidate, IIT Gandhinagar
Oct 2017:            PBC fellowship for outstanding post-doctoral researcher
                              Awarded by Planning and Budgeting Committee (PBC) of the Council for Higher Education, Israel
April 2017:         Colman Soref (BIU institute Excellence fellowship)
                             Awarded by Bar-Ilan University

Jan 2015:           Senior Research Fellowship
                             Awarded by Ministry of human research and Development, India

Jan 2013:           Junior Research Fellowship
                             Awarded by Ministry of human research and Development, India

June 2012:         National Eligibility Test -Lectureship Award in Chemical Science, All India Rank 28
                             Awarded by Council of Scientific Research and Development, India

Publications after joining IIT(BHU), Varanasi

1. Rosy*, S Taragin, E Evenstein, S Maletti, D Mikhailova, M Noked, Diethylzinc-Assisted Atomic Surface Reduction to Stabilize Li and Mn-Rich NCM, ACS Applied Materials & Interfaces 2021, 13 (37), 44470-44478. (Impact Factor: 9.229; ISSN: 1944-8244).

2. H Dykes, Rosy, D Sharon, M Noked, OO Capraz, In Situ Stress Measurements on Thin Film Au Positive Electrode during the First Discharge of Li-O2 Batteries, Just accepted in J. Electrochem. Soc. 2021, (Impact Factor: 4.316; ISSN: 1945-7111).
3. Ortal Lidor-Shalev, Nicole Leifer, Michal Ejgenberg, Hagit Aviv, Ilana Perelshtein, Gil Goobes, Malachi Noked, Rosy*, Molecular Layer Deposition of Alucone Thin Film on LiCoO2 to Enable High Voltage Operation, Just accepted in Batteries and Supercaps (Impact Factor: 7.093; ISSN: 2566-6223)
4. Shira Haber, Rosy, Arka Saha, Olga Brontvein, Raanan Carmieli, Arava Zohar, Malachi Noked, and Michal Leskes, Structure and Functionality of an Alkylated LixSiyOz Interphase for High-Energy Cathodes from DNP-ssNMR Spectroscopy, J. Am. Chem. Soc. 2021, 143, 12, 4694–4704 (Impact Factor: 15.419; ISSN: 1520-5126)
5. Sandipan Maiti, Hadar Sclar, Rosy, Judith Grinblat, Michael Talianker, Maria Tkachev, Merav Tsubery, Xiaohan Wu, Malachi Noked, Boris Markovsky, Doron Aurbach, Double Gas Treatment: A Successful Approach for Stabilizing the Li and Mn-rich NCM Cathode Materials’ Electrochemical Behavior, Energy Storage Materials, 2021, 45, 74-91. (Impact Factor: 17.789; ISSN: 2405-8297)

6. Arka Saha, Netanel Shpigel, Rosy, Nicole Leifer, Sarah Taragin, Tali Sharabani, Hagit Aviv, Ilana Perelshtein, Gilbert Daniel Nessim, Malachi Noked, Yury Gogotsi, Enhancing the Energy Storage Capabilities of Ti3C2Tx MXene Electrodes by Atomic Surface Reduction, Advanced Functional Materials, 2021, 2106294. (Impact Factor: 18.81, ISSN:1616-3028)

Publications during Post-doc

1. Ayan Mukherjeeψ, Rosyψ, M. Noked, Advanced Cathode Material Prepared by the Electrochemical Ion Exchange of Na with Li from Na3V2(PO4)2F3 (Equal authorship) J. Mater. Chem. A, 2020,8, 21289-21297 (Impact Factor: 12.732; ISSN: 2050-7496).

2. Sarah Taraginψ, Rosyψ, Jan Allen, Lin Ma, Kang Xu, Malachi Noked*, Marshal Schroeder*, Stabilization of Lithium Cobalt Phosphate Cathodes via Artificial Interphases. (Equal authorship) J. Electrochem. Soc. 167 130518, 2020 (Impact Factor: 4.316; ISSN: 1945-7111).
3. Rosy*, Shira Haber, Eliran Evenstein, Arka Saha, Yitzhak Apeloig, Michal Leskes, Malachi Noked, Alkylated LixSiyOz Coatings for Stabilization of Li-rich Layered Oxide Cathodes. Energy Storage Materials 33, 2020, 268–275 (Impact Factor: 17.789; ISSN: 2405-8297)
4. Rajashree Konar, Rosy, Ilana Perelshtein, Louisa Meshi, Eti Teblum, Madina Telkhozhayeva, Jonathan J. Richter, Elti Cataruzza, Andrea Pietropolli Charmet, Paolo Stoppa, Malachi Noked, Gilbert Daniel Nessim, Scalable Synthesis of Few-Layered 2D Tungsten Di-Selenide (2H-WSe2) Nanosheets Directly Grown on Tungsten (W) Foil Using Ambient Pressure Chemical Vapor Deposition for Reversible Li-Ion Storage. ACS Omega 2020, 5, 31, 19409–19421. (Impact Factor: 3.512, ISSN: 2470-1343).
5. Sandipan Maiti, Hadar Sclar, Rosy, Judith Grinblat, Michael Talianker, Larisa Burstein, Malachi Noked, Boris Markovsky, Doron Aurbach, Modification of Li and Mn-rich Cathode Materials via Formation of the Rock-Salt and Spinel Surface Layer for Steady and High Rate Electrochemical Performances, ACS Appl. Mater. Interfaces 2020, 12, 29, 32698–32711(Impact Factor: 9.229; ISSN: 1944-8244)
6. Ayan Mukherjee, Tali Sharabani, Rosy, Sivan Okashy, Malachi Noked, Effect of Crystal Structure and Morphology on Na3V2(PO4)2F3 Performances for Na Ion batteries, Batteries & Supercaps 2020, 3, 510 –518 (Impact Factor, 7.069, ISSN: 2566-6223).
7. Won-Jin Kwakψ, Rosyψ, Daniel Sharon, Xia Chun, Hun Kim, Lee Johnson, Peter Bruce, Linda Nazar, Yang Kook Sun, Malachi Noked, Doron Aurbach, Lithium-Oxygen Batteries: Potential, Status and Future. (Equal authorship), Chem. Rev. 2020, 120, 14, 6626–6683. (Impact Factor: 60.622; ISSN: 1520-6890).
8. Arka Saha, ψ* Tali Sharabani, Eliran Evenstein, Daniel Nessim*, Malachi Noked*, Rosyψ*, Probing Electrochemical Behaviour of Lignocellulosic, Orange Peel Derived Hard Carbon as Anode for Sodium Ion Battery. (Equal+ Principal Corresponding author) J. Electrochem. Soc., 167, 090505, (2020) (Impact Factor: 4.316; ISSN: 1945-7111).
9. Kevin Leung*, Rosy, Malachi Noked, Anodic Decomposition of Surface Films on High Voltage Spinel Surfaces – A Density Function Theory Study. J. Chem. Phys. 151, 234713 (2019). (Impact Factor: 3.488; ISSN: 0021-9606). Highlighted as top 20 article in Surfaces. Interfaces and Materials.
10. Reut Yemini, Rosy, Malachi Noked*, On the Efficacy of Anode Reversibility in Presence of Polysulfides: A Case Study for Li-S Batteries. J. Electrochem. Soc. 2019, 166, A3098-A3101. (Impact Factor: 4.316; ISSN: 1945-7111).
11. Rosy*, Hadar Sclar, Eliran Evenstein, Shira Haber, Sandipan Maiti, Tali Sharabani, Michal Leskes, and Malachi Noked*, “Mitigating Structural Instability of High Energy Lithium and Manganese Rich LiNixMnyCoz Oxide by Interfacial Atomic Surface Reduction”, Chemistry of Materials 2019, 31, 10, 3840-3847. (IMPACT FACTOR: 9.811; ISSN: 1520-5002).
12. Michael Salamaψ, Rosyψ, Ran Attias, Reut Yemini, Yosef Gofer, Doron Aurbach, and Malachi Noked, "Metal-Sulfur Batteries-Overview and Research Methods", ACS Energy Letters, 2019, 4, 436–446. (Equal authorship) (IMPACT FACTOR: 23.101; ISSN: 2380-8195).
13. Eliran Evensteinψ, Rosyψ*, Shira Haber, Kevin Leung, Michal Leskes, Malachi Noked, “Vapor Phase Approach for Atomic Surface Reduction of Interfaces: High Energy LiNixMnyCoz Oxide as Test case”, Energy Storage Material, 2019, 19, 261-269. (Equal + corresponding author) (Impact Factor: 17.789; ISSN: 2405-8297).
14. Rosy, Malachi Noked, “On the Stability of Nitrate Ion in Rechargeable Li-O2 Batteries”, J. Electrochem. Soc., 166 (2019) A5008-A5013 (Impact Factor: 4.316; ISSN: 1945-7111).
15. Rosy, Sabine Akabayov, Michal Leskes, Malachi Noked, “Bi-Functional Role of LiNO3 in Li - O2 Batteries: De-Convoluting Surface and Catalytic Effects”, ACS Appl. Mater. Interfaces, 2018, 10 (35), 29622–29629 (Impact Factor: 9.229; ISSN: 1944-8244).
16. Rosy, Malachi Noked, “Alkali Metal Batteries: Multifunctional interphase”, Nature Energy 3, 253–254 (2018) (Impact Factor: 68.822; ISSN: 2058- 7546)
Publications during Ph.D.
17. Neeraj Kumar, Rosy, Rajendra N Goyal, “A Melamine Based Molecularly Imprinted Sensor for the Determination of 8-Hydroxydeoxyguanosine In Human Urine", Talanta, 166 (2017) 215-222 (Impact Factor: 6.057; ISSN: 0039-9140).
18. Neeraj Kumar, Rosy, Rajendra N. Goyal, “Gold-Palladium Nanoparticles Aided Electrochemically Reduced Graphene Oxide Sensor for the Simultaneous Estimation of Lomefloxacin and Amoxicillin”, Sensors and Actuators B, 243 (2017) 658–668 (Impact Factor: 7.460; ISSN: 0925-4005).
19. Neeraj Kumar, Rosy, Rajendra N Goyal, “Palladium Nano Particles Decorated Multi-Walled Carbon Nanotubes Modified Glassy Carbon Sensor for the Determination of 5-Hydroxytryptophan in Biological Fluids”, Sensors and Actuators B, 239 (2017) 1060–1068 (Impact Factor: 7.460; ISSN: 0925-4005).
20. Neeraj Kumar, Rosy and Rajendra N. Goyal, “Electrochemical Behavior of Melatonin and Its Sensing in Pharmaceutical Formulation and Urine Analysis”, Current Pharmaceutical Analysis, 13 (2017) 85-90 (Impact Factor: 0.885; ISSN: 1875-676X).
21. Rosy, Mamta Raj and Rajendra N. Goyal, “A Facile Method to Anchor Reduced Graphene Oxide Polymer Nanocomposite on the Glassy Carbon Surface and Its Application in the Voltammetric Estimation of Tryptophan in Presence of 5-Hydroxytryptamine”, Sensors and Actuators B, 233 (2016) 445–453 (Impact Factor: 7.460; ISSN: 0925-4005).
22. Rosy, Rajendra N. Goyal, “Determination of 8-Hydroxydeoxyguanosine: A Potential Biomarker of Oxidative Stress, Using Carbon-Allotropic Nanomaterials Modified Glassy Carbon Sensor”, Talanta, 161 (2016) 735-742 (Impact Factor: 6.057; ISSN: 0039-9140).
23. Neeraj Kumar, Rosy, Rajendra N.Goyal, “Nanopalladium Grained Polymer Nanocomposite Based Sensor for the Sensitive Determination of Melatonin”, Electrochimica Acta, 211 (2016) 18-26 (Impact Factor: 6.901; ISSN: 0013-4686).
24. Rosy, Pankaj Gupta and Rajendra N. Goyal, “High Energy Carbon Ion Beam Irradiated Sensor for the Voltammetric Sensing of Purine Nucleosides of DNA”, Sensors and Actuators B, 223 (2016) 884–892 (Impact Factor: 7.460; ISSN: 0925-4005).
25. Pankaj Gupta, Rosy and Rajendra N. Goyal, “A Carbon Ion Beam Irradiated MWCNT/AuNPs Composite Sensor for A Sensitive Assay of Purine Nucleosides of DNA”, RSC Adv., 5 (2015) 102300 (Impact Factor: 3.361; ISSN: 2046-2069).
26. Rosy, Fouran Singh and Rajendra N. Goyal, “Structural and Electrochemical Characterization of Carbon Ion Beam Irradiated Reduced Graphene Oxide and Its Application in Voltammetric Determination of Norepinephrine”, RSC Adv., 5 (2015) 87504 (Impact Factor: 3.361; ISSN: 2046-2069).
27. Rosy, Rajendra N. Goyal and Yoon-Bo Shim, “Glutaraldehyde Sandwiched Amino Functionalized Polymer Based Aptasensor for the Determination and Quantification of Chloramphenicol”, RSC Adv., 5 (2015) 69356 (Impact Factor: 3.361; ISSN: 2046-2069).
28. Rosy and Rajendra N. Goyal, “Gold Nanoparticles Decorated Poly-Melamine Modified Glassy Carbon Sensor for the Voltammetric Estimation of Domperidone in Pharmaceuticals and Biological Fluids”, Talanta, 141(2015) 53–59 (Impact Factor: 6.057; ISSN: 0039-9140).
29. Rosy and Rajendra N. Goyal, “Estimation of Amoxicillin in Presence of High Concentration of Uric Acid and Other Urinary Metabolites Using an Unmodified Pyrolytic Graphite Sensor”, J. Electrochem. Soc., 162 (2015) G8-G13 (Impact Factor: 4.316; ISSN: 1945-7111).
30. Saurabh K. Yadav, Rosy, Munetaka Oyama and Rajendra N. Goyal, “A Biocompatible Nano Gold Modified Palladium Sensor for Determination of Dopamine in Biological Fluids”, J. Electrochem. Soc., 161 (2014) H41-H46 (Impact Factor: 4.316; ISSN: 1945-7111).
31. Rosy, Saurabh K. Yadav, Bharati Agrawal, Munetaka Oyama and Rajendra N. Goyal, “Graphene Modified Palladium Sensor for Electrochemical Analysis of Norepinephrine in Pharmaceuticals and Biological Fluids”, Electrochim. Acta, 125 (2014) 622–629 (Impact Factor: 6.901; ISSN: 0013-4686).
32. Rosy, Himanshu Chasta and Rajendra N. Goyal, “Molecularly Imprinted Sensor Based on o-Aminophenol for the Selective Determination of Norepinephrine in Pharmaceutical and Biological Samples”, Talanta, 125 (2014) 167–173 (Impact Factor: 6.057; ISSN: 0039-9140).
Funding Agency Domain Duration Funds
DST-SERB SRG Li-ion Batteries  Dec 2021- Dec 2023 ~ ₹33 Lakhs
IIT(BHU) Seed Grant Electrochemical Sensors Aug 21- April 2022 ~ ₹10 lakhs
1. International Conference on Advanced Materials for Better Tomorrow: Impacting Energy, Heath, and Environment (AMBT-2021, virtual) : 13th - 17th July 2021

2. Annual Meeting of Israel National Center for Electrochemical Propulsion (INREP): Sept, 15-16, 2020

1. An Invited lecture was given at International Conference on Electrochemistry in Industry, Health and Environment held in Mumbai, India, 21 to 26 Jan 2020.

2. An oral presentation as a KEYNOTE speaker (on behalf of Prof. Doron Aurbach) was given at Electrochemical Conference on Energy and the Environment: Bioelectrochemistry and Energy Storage held in Glasgow, Scotland, 21 to 26 July 2019.
3. An oral presentation was given at Electrochemical Conference on Energy and the Environment: Bioelectrochemistry and Energy Storage held in Glasgow, Scotland, 21 to 26 July 2019.
4. An oral presentation was given at 69th Annual ISE Meeting held in Bologna, Italy, 2 to 7 September 2018.
5. An oral presentation was delivered at the International Conference on Electrochemistry in Advanced Materials, Corrosion and Radiopharmaceuticals, CEAMCR-2018, BARC, Mumbai, India, 15-17 Feb 2018.
6. An oral presentation was given at the International Conference on Materials Science & Technology (ICMTECH 2016), 01-04 March 2016, Delhi.
7. An oral presentation was delivered at International conference on Nanostructured Polymeric materials and Polymer Nanocomposites (ICNPM 2015), 13-15 Nov 2015, Kerala.
1. A poster was presented at the Gordon Research Conference on Batteries, 16-21 Feb 2020, Ventura, USA.

2. A poster was presented in the Israel National Research Center for Electrochemical Propulsion - Meet 2018, 30 April – 01 May 2018, BIU, Ramat Gan, Israel.
3. A poster was presented at the 10th International Conference on Advanced Lithium Batteries for Automobile Applications (ABAA-10), 22-26 October 2017, Oakbrook, IL (Chicago, USA).
4. A poster titled “Voltammetric Determination of chloramphenicol in Rosetta Cell Culture, drugs and urine using a highly sensitive aptamer cross linked polymer-based biosensor” was presented in the Indian Roadshow Workshop organized by Royal Society of Chemistry (RSC) at I.I.T. Delhi held on 4 November 2014.
5. A poster titled “Novel Graphene Modified Palladium Based Electrochemical Sensor for Determination of Norepinephrine in Presence of High Concentration of Uric Acid.” was presented in the 11th ISEAC International Discussion Meet on Electrochemistry and its Applications (ISEAC-DM-2014), 24-28 February 2014, Amritsar.

Even Semester

  • CHI-322: Electro Chemistry and Surface Phenomena
  • CY-407: Electro Chemistry and Surface Phenomena
  • DE-CY-523: Electroanalytical Chemistry
  • DP-CY-494: Chemistry Lab. IV (Physical Chemistry)

Odd Semester

  • CHI-321: Reaction Kinetics
  • CY-402:  Reaction Kinetics & Photochemistry
  • CY-403:  Analytical Chemistry
  • DP-CY-491: Chemistry Lab. I (Physical Chemistry)
  • Member, DPGC
  • Member, R&D Committee
  • Member Secretary, Departmental Faculty Meeting
  • Convener, Time-Table Committee (Even Semester)
  • Convener of 3 courses and 1 Lab coordination committee
Ph.D. Student 

Master's Student 

Under Graduate Students 

Interested students, researchers, and post-docs are encouraged to contact using the following emails