Nanomaterials, Thin films and Bioceramics, Electrochemical Energy storage devices (Batteries and supercapacitors), Chemical gas sensors, Broadband dielectric spectroscopy.

Experience :
Post Doctoral Research – 6 years (France, Germany, England)
Visiting Scientist – 2 years (IGCAR, Department of Atomic Energy, Kalpakkam)
Assistant Professor – 6 months (Tezpur Central University, Assam)

Last five years Research Publications :

1. Electrochemical performances of asymmetric aqueous supercapacitor based on porous Cu3Mo2O9 petals and La2Mo3O12 nanoparticles fabricated through a simple co-precipitation method, V. Gajraj, C.R. Mariappan*, Appl. Surf. Sci. 512 (2020) 145648 [IF: 5.155]

2. Investigation on the electrochemical properties of mesoporous Zn0.2Ni0.05Co0.5O microspheres for supercapacitors, V. Kumar, C. R. Mariappan*, Int. J. Environ. An. Chem. (2020) in-press [IF: 1.372].

3. Growth of LiNi0.5Mn1.5O4 crystals on reduced graphene oxide sheets for high energy and power density charge storage, V. Gajraj, R. Jose, C. R. Mariappan*, Mater. Res. Bull. 124 (2020) 110742. [IF 3.355]

4. Structural and ion transport properties of sodium ion conducting Na2MTeO6 (M = MgNi and MgZn) solid electrolytes, M. Dubey, A. Kumar, S. Murugavel, G. V. Prakash, D. A. Jose, C. R. Mariappan*, Ceramics International 46 (2020) 663. [IF 3.450]

5. Morphology-driven pseudo-capacitance in thin nano-belts, M. Harilal, S.G. Krishnan, B. Pal, I.I. Misnon, C. R. Mariappan, F.I. Ezema, C.-C. Yang, R. Jose, Advanced Fiber Materials 1 (2019) 205.

6. Synthesis and electrochemical properties of rGO/Polypyrrole/Ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors,C. R. Mariappan*, V. Gajraj, S. Gade, A. Kumar, S. Dsoke, S. Indris, H. Ehrenberg, G. V. Prakash, R. Jose, J. Electroanal. Chem. 845 (2019) 72. [IF: 3.235]

7. Light-induced water oxidation by polymorphs of Zn-Co-Ni Oxide spinel catalyst: A comparative study, R. Sakla, R. Kaushik, V. Kumar, D. A. Jose, A. Ghosh*, C. R. Mariappan*, Sustainable Energy & Fuels 3 (2019) 786. [IF: 4.912]

8. Antibacterial and structural properties of mesoporous Ag doped calcium borosilicate glass-ceramics synthesized via a sol-gel route, A. Kumar, C. R. Mariappan*, B.S. Saharan, J. Non-Cryst. Solids 505 (2019) 413. [IF: 2.488]

9. Characterization of mesoporous Zn doped NiCo2O4 rods produced by hydrothermal method for NOx gas sensing application., V. Kumar, C. R. Mariappan*, J. Alloys Compd. 773 (2019) 158. [IF: 3.779]

10. Ionic conduction and dielectric properties of yttrium doped LiZr2(PO4)3 obtained by a Pechini-type polymerizable complex route, C. R. Mariappan*, P. Kumar, A. Kumar, S. Indris, H. Ehrenberg, G. V. Prakash, R. Jose, Ceramics International 44 (2018) 15516 [IF 3.057].

11. High electrochemical performance of 3D highly porous Zn0.2Ni0.8Co2O4 microspheres as an electrode material for electrochemical energy storage, C. R. Mariappan*, V. Kumar, R. Azmi, L. Esmezjan, S. Indris, M. Bruns, H. Ehrenberg, CrystEngComm. 20 (2018) 2159 [IF 3.307].

12. Fabrication and characterization of monodispersed Mn0.8Ni0.2Co2O4 mesoporous microspheres for supercapacitor application, C. R. Mariappan*, S. Upadhyay, V. Kumar, S. Indris, H. Ehrenberg, Ceramics International 44 (2018) 8864 [IF 3.057].

13. Bioactivity and Antibacterial Studies on Silver Nanoparticles Embedded Calcium Borosilicate Ceramics, C. R. Mariappan*, A. Kumar, B. Sarahan, Materials Science Forum 928 (2018) 249.

14. Pseudocapacitance of mesoporous spinel-type MCo2O4 (M = Co, Zn and Ni) rods fabricated by a facile solvothermal route, V. Kumar, C. R. Mariappan*, R. Azmi, D. Moock, S. Indris, M. Bruns, H. Ehrenberg, G. V. Prakash, ACS Omega 2 (2017) 6003. [IF: 2.584]

15. Influence of silver on the structure, dielectric and antibacterial effect of silver doped bioglass-ceramic nanoparticles, C. R. Mariappan*, N. Ranga, Ceramics International 43 (2017) 2196 [IF 3.057].

16. Silver Doped Nano-sized Bioglass Ceramics: Synthesis, Characterization and Biocompatibility Studies, C. R. Mariappan*, N. Ranga, Materials Science Forum 860 (2016) 25.

17. Study of spinel-type ZnNixCo2-xO4 nano-particles synthesized by thermal decomposition of ternary metal nitrate solutions, J. Kumar, C. R. Mariappan*, V. Kumar, S. Murugavel, G. V. Prakash, Mater. Res. Bull. 83 (2016) 632. [IF: 2.435].

18. Investigation on the grain boundaries electrical characteristics of perovskite lithium ion conductors by derivative of tand approach, C. R. Mariappan*, O. Bohnke, Mater. Res. Bull. 74 (2016) 134 [IF: 2.435].

Awards:

Alexander von Humboldt Research Fellowship (2006).
European Research Fellowship (2007).
“Region des Pays de la Loire (France)” Postdoc. Res. Fellowship (2005).
SERB-DST Fast track scheme for Young Scientists – (2014)

Biography:

Published in MARQUIS Who’s Who® in Science and Engineering, 10th anniversary Edition.

Ph.D Supervised:
One completed
Three ongoing.

M.Tech Dissertations:
13 (completed); 03 (on going)

Sponsored R & D Projects:

SERB-DST Fast track scheme (2014-2017).
DBT project (2018-2021)
UGC-DAE-CRS project (2019-2021)
Research group linkage project-AvH foundation, Germany (2019-2022)

International Research Collaboration:
Professor Dr. Helmut Ehrenberg, Institute for Applied Materials-Energy Storage Devices, Karlsruhe Institute of Technology, Germany.
Professor Dr. B. Roling, Physical Chemistry Depart., Philipps University, Marburg, Germany

National Research Collaboration:

Dr. K.I. Gnanasekar, Novel chemical sensor section, Chemistry Group, IGCAR, Kalpakkam, Tamil Nadu.