Dr. Jin An Wang is a full professor in Chemical Engineering in the National Polytechnic Institute in Mexico City, Mexico. He is a Mexican National Researcher and a member of Mexican Academy of Sciences. Dr. Wang is coauthor of more than 160 scientific publications and 5 patents and coeditor of 3 books in advanced new catalytic materials and 3 special volumes in Catalysis Today. He served as chair of the First to Fifth International Symposium on New Catalytic Materials. Dr. Wang was a visiting professor of the Universidad Nacional Autónoma de Mexico, Universidad Autónoma Metropolitana-A, and Worcester Polytechnic Institute in USA. His research interest focuses on the synthesis of new catalytic materials, catalysis for petroleum refining, catalysis for clean fuel production and environmental catalysis.

Gabor A. Somorjai has been a leader in the field of Catalysis for more than 45 years. He has published almost 1200 papers and 4 books. He received his Ph.D. in Chemistry from the University of California, Berkeley in 1960 and he was appointed to the faculty there in 1964. Since then, he has won just about every honor in his field. In 2011 he was the recipient of the Honda Prize, the ENI New Frontiers of Hydrocarbons Prize and the BBVA Foundation Frontiers of Knowledge Award. He has received the Priestley Medal (2008), the National Medal of Science (2002) the Wolf Prize (1998). Somorjai became a member of the National Academy of Sciences in 1979 and the American Academy of Arts and Sciences in 1983

Prof. Litter has a Ph.D. in Chemistry (Buenos Aires University, Argentina), with postdoctoral studies at the University of Arizona, USA. She was head of the Division of Environmental Chemistry Remediation (National Atomic Commission of Argentina), Senior Researcher of the National Research Council and Full Professor at the University of General San Martín. She has more than 200 scientific publications in international journals, books, and book chapters. She received the Mercosur Prize in Science and Technology (2006 and 2011) and was President of the International Congress on Arsenic in the Environment (2014). She was designated pioneer on photocatalysis in Argentina (2016).