Dr. Putra Kumar Balla is a research professor in the Catalyst & Catalytic Reaction Engineering Laboratory, Department of Chemical Engineering and Applied Chemistry at Chungnam National University, Daejeon, Republic of Korea. He obtained an MSc in Chemistry from Andhra University, Andhra Pradesh, India, in 2007, and a PhD in Heterogenous Catalysis from the Indian Institute of Chemical Technology, Hyderabad, India, in 2015. His research areas include heterogeneous catalysis, reaction engineering, and biomass valorization.