Jingzheng Ren, Ph.D., is an Assistant Professor at The Hong Kong Polytechnic University, an Honorary Associate Professor at University of Southern Denmark, and an Associated Senior Research Fellow at Institute for Security & Development Policy (Stockholm, Sweden). He has published more than 150 journal papers, authored 1 book, edited more than 10 books, and published more than 40 book chapters. Many of his papers have been selected as the Essential Science Indicators top 1% highly cited papers, or identified and highlighted as the Key Scientific Article contributing to excellence in energy research.

Zhipeng Kan, Ph.D., is a Professor of Material Science and Engineering at the Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences. He has published more than 50 papers in international journals.