Dr. Piyush Kumar Sonkar has received his BSc (Chemistry), MSc (Chemistry) and PhD (Chemistry) degree from Banaras Hindu University, India. He is presently working as an assistant professor in Department of Chemistry, MMV, Banaras Hindu University, Varanasi, India. His research interests include nanomaterials, nanocomposites, fuel cells, electrochemical devices, supercapacitors, biosensors, chemical sensors and new materials. He has published more than 45 international and national research papers in various reputed peer reviewed journals. He has published six book chapters. He presented his research work in various international/national seminars/workshops and conferences.

Dr. Vellaichamy Ganesan received his BSc and MSc in Chemistry from Madurai Kamaraj University and Bharathidasan University, India, respectively. Later, he received his PhD (2000) from Madurai Kamaraj University. After completing postdoctoral research in the United States and France, he is now continuing his research in the fields of nanomaterials, electroanalysis, electrocatalysis, development of fuel cell materials, and photocatalysis in the Department of Chemistry, Banaras Hindu University, India as a professor. He is a recipient of IUSSTF fellowship (India-USA), Commonwealth Fellowship (UK), and DAAD Fellowship (Germany). He has published more than 110 research papers in international/national journals.