Webinar title: New Concept Oxide and Precious Metal Catalysts for Environmental Applications
Speaker: Assistant Professor Fudong Liu
Webinar time: 14:30, July 14, 2023 (Friday)
Venue: Room 208, New Environmental Building; Tencent Meeting 909-597-484, Password 071423
Inviter: Associate Professor Lei Ma
Abstract:
The development of new concept oxides and noble metal catalytic materials is the key to realize the purification of nitrogen oxides (NOx) in low-temperature diesel vehicle exhaust. The speaker will briefly introduce the research progress of new low-temperature NH3 and H2 selective catalytic reduction of NOx catalysts in recent years, and discuss the challenges and opportunities in this field. The coordination environment of single-atom catalysts or cluster catalysts is one of the main factors that determine their catalytic performance. However, how to precisely control the coordination structure of single-atom or cluster sites to make them efficiently used in the field of environmental catalysis is still a huge challenge. The speaker will demonstrate the control strategy of platinum single atom (Pt1) coordination environment and its structure evolution, and reveal the structure-activity relationship of Pt active sites with different coordination in environmental catalytic reactions. In order to solve the problem of low activity of Pt1 catalysts for specific reactions such as CO oxidation, the preparation of highly active fully exposed Pt cluster catalysts and the control of their coordination environment were achieved by finely reducing and activating Pt1 catalysts. This work could provide new ideas for precise regulation of the structure and coordination environment of metal sites, as well as the realization of 100% atomic utilization efficiency of metals and the highest intrinsic catalytic activity of target reactions. This report will also introduce new Pt-based and Pd-based catalysts with improved hydrothermal stability for gasoline vehicle exhaust purification, and discuss the challenges that new environmental catalysts may encounter in industrial applications.
About the speaker:
Dr. Fudong Liu is currently an assistant professor at the University of Central Florida. He received his bachelor's and doctoral degrees from Tsinghua University and the Eco-Environmental Research Center of the Chinese Academy of Sciences respectively. He used to be an assistant researcher and an associate researcher at the Eco-Environmental Research Center of the Chinese Academy of Sciences, and later engaged in postdoctoral research at Lawrence Berkeley National Laboratory. He also served as Staff Chemist and Senior Chemist of BASF. Dr. Liu is committed to environmental catalysis, nanomaterial synthesis, new concept motor vehicle pollution control, greenhouse gas and energy molecule conversion, single atom/cluster catalysis, and X-ray absorption spectrum depth characterization of environmental materials, and chaired and participated in the US National Science Foundation/Ministry of Energy/BASF/Neo Materials Research Fund, National Natural Science Foundation of China/863 Program, and many other projects. He has published more than 120 academic papers in JACS, Nat. Commun., ES&T, ACS Catal., Appl. Catal. B, and other journals. According to Google Scholar statistics, his papers have been cited more than 9,700 times, with an H-index of 50. He has applied for 41 invention patents in China, the United States, Europe and the world, of which 17 have been authorized. He has also won the second prize of the National Natural Science Award, the second prize of the National Science and Technology Progress Award, the Lu Jiaxi Young Talent Award of the Chinese Academy of Sciences, the member of the Youth Innovation Promotion Association of the Chinese Academy of Sciences, the Young Scientist Award of the International Catalysis Association, the 2020 Tech Connect Defense Innovation Award of the United States, the 2023 UCF Research Incentive Award, and other awards.