题目:沸石分子筛封装纳米金属催化材料
时间:2019年12月5日 13:30
地点:必赢线路检测中心 F103会议室
报告人:王亮 博士(浙江大学)
邀请人:马昊 讲师、齐飞 教授(内燃机研究所)
报告人简介
王亮,男,1986年9月出生于山东,分别于2008和2013年从吉林大学获得理学学士和理学博士学位,导师为肖丰收教授。随后加入浙江大学从事博士后研究工作,合作导师为肖丰收教授。2015年12月,在浙江大学化学系任副研究员,2018年10月,在浙江大学化学与生物工程学院任“百人计划”研究员。主要研究纳米与多孔催化材料。以通讯/第一作者身份发表SCI论文50余篇(包括Nature Catal., J. Am. Chem. Soc., Nature Commun., Angew. Chem., Nano Today, ACS Catal.等)。获得2016年国际催化大会青年科学家奖,2017年中国催化新秀奖,国家自然科学基金优青项目(2018)和浙江省自然科学基金杰青项目(2017)资助,入选浙江省151人才第二层次。
报告摘要
The zeolites, a class of materials with uniform porosity, high crystallinity, structural diversity, and large surface area, have been extensively studied in both synthesis and applications in catalysis, separation, and adsorption. In the zeolite crystals, the uniform nanopores benefit molecular diffusion, but the absence of catalytically active metal species (e.g. isolated metal site, nanocluster, and nanoparticle) strongly limits their wide applications. Solution to this problem is to fix the active sites inside of the nanoporous crystals. We developed the metal-based active species fixed in zeolite crystals to overcome the aforementioned issues. It is emphasized that the nanoparticles of metals and metal oxides fixed inside of zeolite crystals effectively combine the advantages of high activity of the nanoparticles and the selectivity/stability of the zeolite, resulting in enhanced catalytic performances in a series of reactions. Particularly, the metal nanoparticles are effectively stabilized by the zeolite sheath, giving superior sinter resistance at harsh reaction conditions.