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PUBLICATIONS

Research publications

  1. N.C. Joshi, B. S. Rawat, S. Kandwal, V. Gajraj, “Bioinspired silver nanoparticles decorated reduced graphene oxide nanocomposite for supercapacitor applications”. Inorganic and Nano-Metal Chemistry, 55(4), 382-390 (2025).

  2. V. Gajraj, P. Devi, R. Kumar, N. Sundriyal, M. V. Reddy, C. R. Mariappan, “Self-assembly of novel cobalt iron phosphate nanoparticles for the solid state supercapattery and high-performance hydrogen evolution reactions”, Int. J. Hydrog. Energy, 48(47) 17868-17881 (2023) (IF 8.3).

  3. N. Kumar, A. Juyal, V. Gajraj, S. Upadhyay, N. Priyadarshi, S. Chetana, N. C. Joshi, A. Sen. “Facile synthesis of fine 1D VO2 and its supercapacitance as a binder free electrode.” Inorg. Chem. Comm. 150 (2023) 110439 (IF 5.4).

  4. N. Kumar, M. N. M. Ansari, S. Upadhyay, V. Gajraj, N. C. Joshi, S. Sikiru, A. Sen, “Blending of a 3D cloud-like morphology with a 1D structure in a VO2/MXene nanocomposite to enhance the charge storage capability”. J. Mater. Chem. C, 11(48), 17022-17033 (2023) (IF 5.1).

  5. V. N. Thakur, S. Chetana, V. Gajraj, N. Kumar, N. C. Joshi, K. G. Basavakumar, “Chemical vapour deposition synthesized novel LaFe2O3/Al2O3/Fe/CNT heterostructure for enhanced super-capacitive performance”. J. Mater. Sci. Mater. Electron., 34(36), 2314 (2023).

  6. N. Kumar, V. Gajraj, S. Upadhyay, S. Chetana, S. Sankaranarayanan, I. Hossain, N. C. Joshi, N. Priyadarshi, A. Sen. "One-step fragmentation of a 2D MXene across the fine 1D MnO2 surface and its supercapacitance." CrystEngComm 25 (2023) 72-85.

  7. V. Gajraj, P. Devi, R. Kumar, N. Sundriyal, and C. R. Mariappan, “Fabrication of nano cluster aggregated dense Ce2(MoO4)3 micro spherical architectures for high voltage range energy storage and high catalytic energy conversion applications”, Energy & Fuels 36 (2022) 7841(IF 5.4).

  8. N. Kumar, V. N. Thakur, M. Karthikeyan, V. Gajraj, A. Sen, N. C. Joshi, N. Priyadarshi, “Morphological reduction of Fe3O4 by single step hydrothermal synthesis using 1D MnO2 as a template and its supercapacitive behaviour”, CrystEngComm 24 (2022) 4611.

  9. V. Gajraj, A. Kumar, S. Indris, H. Ehrenberg, N. Kumar, C.R. Mariappan, “Influence of Al on structure and ion transport in garnet type Li7La3-xAlxZr2O12 solid electrolyte for Li-ion batteries”. Ceramic International 48(19) 29238-29246 (2022) (IF 5.6).

  10. N. Kumar, V. Gajraj, R. Rameshbabu, R.V. Mangalaraja, N. C. Joshi, N. Priyadarshi, “Redox Additive Electrolyte Assisted Promising Pseudocapacitance from strictly 1D and 2D blended structures of MnO2/rGO”. Materials Characterization 189 (2022) 11191 (IF 5.5).

  11. V. Gajraj, P. Devi, R. Kumar, and C. R. Mariappan, “Designing the novel Co2FeV2O8 micro sticks with prompted multiple electrochemical performances: Asymmetric solid-state supercapacitor, Methanol oxidation and Hydrogen evolution reaction studies”. Energy & Fuels 36 (2022) 4585-4595 (IF 5.4).

  12. N. C. Joshi, R. Dhiman, S. Kimothi, N. Kumar, P. Semwal, V. Gajraj, “Synthesis and supercapacitive performances of PPY@MoO3 based nanocomposite material “. J. Sol-Gel Sci. Tech., 104(1), 178-188 (2022).

  13. V. Gajraj, and C.R. Mariappan, “Preparation of spinel structured MnCo2O4 microspheres for energy storage devices.” Journal of ferroelectrics 588 (2022) 55-64.

  14. A. Kumar, V. Gajraj, A. Das, D. Sen, H. Xu, and C. R. Mariappan, “Silver, Copper, Magnesium, and Zinc contained electroactive mesoporous bioactive S53P4 Glass-ceramics nanoparticle for bone regeneration: Bioactivity, Biocompatibility, and Antibacterial activity”. Journal of Inorganic and Organometallic Polymers and Materials 32 2309-2321 (2022) (IF 4.9).

  15. D. Nagpal, V. Gajraj, K.I. Gnanasekar, C.R. Mariappan, “Novel compositions of mesoporous spinel-type ternary metal oxides microspheres: Structural and electrical properties functionally.” Physica B: Condensed matter 630 (2022) 413679.

  16. N. C., Joshi, B. S. Rawat, H. Bisht, V. Gajraj, N. Kumar, S. Chetana, P. Gururani, “Synthesis and supercapacitive behaviour of SnO2/r-GO nanocomposite”. Synthetic Metals, 289, 117132 (2022) (IF 4.6).

  17. V. Gajraj, R. Azmi, S. Indris, H. Ehrenberg, C.R. Mariappan, “Boosting the multifunctional properties of MnCo2O4-MnCo2S4 heterostructure for portable all-solid-state symmetric supercapacitor, electrocatalytic oxidation of methanol and hydrogen evolution reaction”. ChemistrySelect 41 (2021) 11466.

  18. V. Gajraj, A. Kumar, Ekta, Rahul, D. Amilan Jose, Amrita Ghosh, C. R. Mariappan, “Multifunctionality exploration on NiCo2O4-rGO nanocomposites: Photochemical water oxidation, methanol oxidation and asymmetric supercapacitor applications”. Dalton Transactions 50 (2021) 18001 (IF 3.5).

  19. V. Gajraj, R. Azmi, M.S.D. Darma, S. Indris, H. Ehrenberg, C.R. Mariappan, “Correlation between structural, electrical and electrochemical performance of Zn doped high voltage spinel LiNi0.5‑xZnxMn1.5O4 porous microspheres as a cathode material for Li-Ion batteries”. Ceramic International 24 (2021) 35275 (IF 5.6).

  20. V. Gajraj, and C. R. Mariappan, “CuWO4: a promising multifunctional electrode material for energy storage as in redox active solid-state asymmetric supercapacitor and an electrocatalyst for energy conversion in methanol electro-oxidation”, Journal of Electroanalytical Chemistry 895 (2021) 115504 (IF 4.1).

  21.  V. Kumar, V. Gajraj, K.I. Gnanasekar, S. Dsoke, S. Indris, H. Ehrenberg, B. Roling, and C.R. Mariappan, “Hybrid aqueous supercapacitors based on mesoporous spinel-analogous Zn-Ni-Co-O nanorods: Effect of Ni content on the structure and energy storage”, Journal of Alloys and Compounds 882 (2021) 160712 (IF 6.3).

  22. V. Gajraj, and C. R. Mariappan, "Electrochemical performances of asymmetric aqueous supercapacitor based on porous Cu3Mo2O9 petals and La2Mo3O12 nanoparticles fabricated through a simple co-precipitation method", Applied Surface Science 512 (2020) 145648 (IF 6.9).

  23. V. Gajraj, and C. R. Mariappan, "Synthesis and electrical impedance study of Li1+2xNi0.5Mn1.5-xZnxO4 (0≤ x≤ 0.3) for Li-ion battery application", Materials Today: Proceedings (2020).

  24. V. Gajraj, R. Jose, and C. R. Mariappan, “Growth of LiNi0.5Mn1.5O4 crystals on reduced graphene oxide sheets for high energy and power density charge storage”, Materials Research Bulletin 124 (2020) 110742 (IF 5.6).

  25. C. R. Mariappan, V. Gajraj, S. Gade, A. Kumar, S. Dsoke, S. Indris, H. Ehrenberg, G. Vijaya Prakash, and R. Jose, “Synthesis and electrochemical properties of rGO/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors”, Journal of Electroanalytical Chemistry 845 (2019) 72-83 (IF 4.1).

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