Webinar title: Greenhouse Gas Reduction and Resource Utilization

Speaker: Professor Min Liu

Webinar time: 10:00-12:00 am, May 13, 2023 (Saturday)

Venue: Room 208, New Environmental Building, Tencent Meeting 265700066

Inviter: Associate Researcher Jing Bai

Abstract:

Perfluorocarbons (PFCs), such as CF4, have a strong greenhouse effect (GWP value of 7597) and an extremely long atmospheric lifespan (50000 years), listed as important greenhouse gas emissions reductions in <Kyoto Protocol>. CF4 is widely used in semiconductor manufacturing, power transmission and other fields, which is also one of the main by-products in the process of electrolytic aluminum and rare-earth metal smelting. Due to its highly symmetrical single carbon structure and strong C-F bond energy (550 kJ mol-1), CF4 is very stable. Treating CF4 generally requires harsh reaction condition and high energy consumption, producing complex toxic by-products, which has become a difficulty of concern in environmental field. Therefore, how to achieve efficient adsorption and activation of PFCs on the catalyst surface, control the release of toxic by-products and inhibit catalyst poisoning, is a key problem to be solved in the research of greenhouse gas governance. Professor Min Liu has focused on the environmental catalytic treatment technology of PFCs and achieved innovative results: (1) Revealing the essence of CF4 adsorption and activation on the catalyst surface, proposing a new concept of charge localization sites to enhance the CF4 adsorption and activation of on the catalyst surface; (2) Clarifying the catalytic decomposition process of CF4 and the mechanism of catalyst poisoning, and developing a new method to inhibit toxic by-products; (3) Regulating the intermediate of CF4 resource conversion process and forming a new technology for resource conversion of decomposition products (HF and CO2).

About the speaker:

Min Liu, was born in 1982, distinguished professor of Central South University, doctoral supervisor, a member of the National Four Young Talents Program, the "Hundred Young Talents Program" of Hunan Province, the International Joint Research Center for Carbon Dioxide Green Resource Utilization in Hunan Province, and the National Key Laboratory of Powder Metallurgy. In recent years, he has published more than 180 papers in international authoritative academic journals including Nature, Science, Nature Chemistry, Nature Communications, Journal of the American Chemical Society, Advanced Materials, Angelwandte Chemie International Edition, ACS Catalysis, etc. The papers have been cited more than 18000 times, with an H-factor of 63. His researches have been reported multiple times by Science Daily, Science News, Phys.org, Forbes and so on.