题目：Zeolite Catalysis for Carbon Neutrality

主讲人：Toshiyuki Yokoi

时间：2023年10月31日（星期二）10：30开始

地点：太阳成集团tyc7111ccA楼518

邀请人：车顺爱 教授

报告人简介

Toshiyuki Yokoi received a Ph.D. in 2004 from Yokohama National University, under the supervision of Prof. Tatsumi. He was an associate professor at the Tatsumi’s group in Catalytic Chemistry Division, Chemical Resources Laboratory. By the end of 2017, he will publish over 150 refereed papers. He first succeeded in synthesizing mesoporous silica by using anionic surfactant (Nature Mater., 2004). He also succeeded in preparing the colloidal crystal of silica nanospheres 10 nm in size by using basic amino acids (J. Am. Chem. Soc., 2006, 128, 13664-13665). He developed the preparation of the RTH-type zeolite without using organic-structure-directing agents (Angew. Chem. Int. Ed., 2009, 48, 9884-9887). Recently, he successfully developed a new catalyst for the MTO reaction with a high performance based on the CON-type zeolite (ACS Catalysis, 2015, 5, 4268–4275). Now, he is tackling the synthesis of zeolite with the T sites in the framework occupied by active elements, e.g., Al atoms, controlled (J. Phys. Chem. C, 2015, 119, 15303–15315). These achievements were nationally recognized, and he was given the Japan Petroleum Institute Award for Encouragement of Research and Development in 2011 and the Catalysis Society of Japan Young Researcher's Award in 2012. Since 2018, he have been an associate professor, and a research unit leader of “Nanospace Catalysis Unit”, Institute of Innovative Research, Tokyo Institute of Technology. This unit focuses on nanospace materials such as zeolite and mesoporous materials and aims to create nanospace catalyst that can make efficient use of diverse resources on the planet and that can contribute to the development of green production of chemical feedstocks and value-added chemicals.

报告摘要

The aluminosilicate zeolites have been widely used as solid acid catalysts in the petrochemical field, and the acidity originates from the protons of the bridging OH groups between the framework Si and Al atoms. Since the control of environment of active sites in heterogeneous catalysts is one of the important factors for affecting the catalytic activity, the zeolites with framework Al distribution controlled have attracted much attention. We have developed several approaches to its control by means of different types of the organic-structure-directing-agents (OSDAs), the starting materials and so on. Besides, metal-containing zeolites have received much attention because they have diverse catalytic functions such as hydrogenation, dehydrogenation, oxidation, and C-H activation. We have succeeded in controlling the location of metal cations in zeolites and found that the state and location of the metal species significantly affect the catalytic properties. Thus, zeolites have been considered as a key material for achieving a Carbon Neutrality 2050.

In this presentation, our recent research on the zeolite catalysts with location and state of active sites controlled will be focused. In addition, on-going projects, the conversion of methanol to olefins, methane to methanol, and hydrogenation of carbon dioxide to methanol over zeolite catalysts will be introduced.