A.  Adhikari, Radhakrishnan, S., and Patil, R., ?Influence of dopant ions on properties of conducting polypyrrole and its electrocatalytic activity towards methanol oxidation?, Synthetic Metals, vol. 159, no. 15-16, pp. 1682-1688, 2009.

S. K. M.  Unni, Illathvalappil, R., Bhange, S. N., Puthenpediakkal, H., and Kurungot, S., ?Carbon nanohorn-derived graphene nanotubes as a platinum-free fuel cell cathode?, ACS Applied Materials & Interfaces, vol. 7, no. 43, pp. 24256-24264, 2015.

V. M.  Dhavale and Kurungot, S., ?Cu-Pt nanocage with 3-D electrocatalytic surface as an efficient oxygen reduction electrocatalyst for a primary Zn-air battery?, ACS Catalysis, vol. 5, no. 3, pp. 1445-1452, 2015.

S. K.  Singh, Dhavale, V. M., and Kurungot, S., ?Surface-tuned Co3O4 nanoparticles dispersed on nitrogen-doped graphene as an efficient cathode electrocatalyst for mechanical rechargeable zinc-air battery application?, ACS Applied Materials & Interfaces, vol. 7, no. 38, pp. 21138-21149, 2015.

T.  Palaniselvam, Kashyap, V., Bhange, S. N., Baek, J. - B., and Kurungot, S., ?Nanoporous graphene enriched with Fe/Co-N active sites as a promising oxygen reduction electrocatalyst for anion exchange membrane fuel cells?, Advanced Functional Materials, vol. 26, no. 13, pp. 2150-2162, 2016.

K.  Shijina, Illathvalappil, R., Kurungot, S., Nair, B. N., A. Mohamed, P., Yamaguchi, T., Anilkumar, G. M., Hareesh, U. S., and Sailaja, G. S., ?Chitosan intercalated metal organic gel as a green precursor of fe entrenched and fe distributed N-doped mesoporous graphitic carbon for oxygen reduction reaction?, Chemistryselect, vol. 2, no. 28, pp. 8762-8770, 2017.

M.  Chauhan, Reddy, K. Prabhakar, Gopinath, C. S., and Deka, S., ?Copper Cobalt Sulfide Nanosheets Realizing a Promising Electrocatalytic Oxygen Evolution Reaction?, ACS Catalysis, vol. 7, no. 9, 2017.

P. K.  Gangadharan, Unni, S. K. M., Kumar, N., Ghosh, P., and Kurungot, S., ?Nitrogen-doped graphene with a three-dimensional architecture assisted by carbon nitride tetrapods as an efficient metal-free electrocatalyst for hydrogen evolution?, Chemelectrochem, vol. 4, no. 10, pp. 2643-2652, 2017.

B. J.  Waghmode, Gaikwad, A. P., ,, Sathaye, S. D., Patil, K. R., and Malkhede, D. D., ?Calixarene intercalated NiCo layered double hydroxide for enhanced oxygen evolution catalysis?, ACS Sustainable Chemistry & Engineering, vol. 6, no. 8, pp. 9649-9660, 2018.

M.  Thomas, Illathvalappil, R., Kurungot, S., Nair, B. N., A. Mohamed, P., Anilkumar, G. M., Yamaguchi, T., and Hareesh, U. S., ?Morphological ensembles of N-doped porous carbon derived from ZIF-8/Fe-graphene nanocomposites: processing and electrocatalytic studies?, ChemistrySelect, vol. 3, no. 30, pp. 8688-8697, 2018.

S. N.  Bhange, Soni, R., Singla, G., Ajithkumar, T. G., and Kurungot, S., ?FeNx/FeSx-anchored carbon sheet-carbon nanotube composite electrocatalysts for oxygen reduction?, ACS Applied Nano Materials, vol. 3, no. 3, pp. 2234-2245, 2020.

S.  Kumar, Bhange, S. N., Soni, R., and Kurungot, S., ?WO3 nanorods bearing interconnected Pt nanoparticle units as an activity-modulated and corrosion-resistant carbon-free system for polymer electrolyte membrane fuel cells?, ACS Applied Energy Materials, vol. 3, no. 2, pp. 1908-1921, 2020.

P. K.  Gangadharan, Pandikassala, A., and Kurungot, S., ?Toward pH independent oxygen reduction reaction by polydopamine derived 3D interconnected, iron carbide embedded graphitic carbon?, ACS Applied Materials & Interfaces, vol. 13, no. 7, pp. 8147-8158, 2021.