Dr. Chelladurai Karuppiah received his M.Sc. (2009) and M.Phil. (2011) degree in Chemistry from Madurai Kamaraj University, Madurai, India. He has awarded Ph.D. (2015) degree in Energy and Optoelectronics Materials Program, Department of Chemical Engineering and Biotechnology at National Taipei University of Technology, Taiwan. He has worked as postdoctoral research fellow in 2015-2016 at Department of Chemistry, National Taiwan University, Taiwan. Presently, he is working as postdoctoral researcher in Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, Taiwan, since 2017. His research mainly focused on the synthesis of multifunctional activity of transition metal oxide nanostructured materials and its composites for the application of electrochemical sensors, energy conversion and energy storage devices fabrication.