* Corresponding authors

^a Nano and Bioelectrochemistry Research Laboratory, CO2 Research and Green Technologies Centre, Vellore Institute of Technology University, Vellore – 632 014, Tamil Nadu, India
E-mail: askumarchem@yahoo.com, askumar@vit.ac.in
Tel: +91-416-2202754

^b Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology University, Vellore – 632 014, Tamil Nadu, India

^c Department of Bioscience, School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India

^d Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India

^e Department of Chemistry, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore-641020, Tamil Nadu, India