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金属与金属氧化物纳米晶作为常见催化材料(催化剂、助催化剂或载体),在过去的几十年中引起了人们极大的关注。近年来,纳米催化领域,尤其是纳米晶催化剂的可控制备技术,虽然取得了许多重要的进展,然而,真正理解纳米晶催化剂三性(活性、选择性和稳定性)与其微观结构上的内在联系一直以来都是具有挑战性的科学难题。怎样理解催化反应过程中纳米晶催化剂的活性位点?什么是影响其催化性能的关键因素?如何理解纳米催化的物理化学本质,认识其规律性,提高纳米晶催化剂活性、选择性和稳定性均是纳米催化领域有待解决的重要科学问题。我们课题组针对这些问题和挑战开展了纳米催化研究工作。本文总结了近年来课题组所取得的研究成果。
As a common catalytic material (catalyst, cocatalyst or carrier), metal and metal oxide nanocrystals have drawn great attention in the past few decades. In recent years, although many important advances have been made in the field of controlled preparation of nanocatalysts, especially in the field of nanocatalysts, the true understanding of the nature (activity, selectivity and stability) of nanocrystalline catalysts and their microscopic structure Contact has always been a challenging scientific problem. How to understand the active site of the nanocrystalline catalyst during the catalytic reaction? What are the key factors that affect the catalytic performance? How to understand the physical and chemical properties of the nanocatalyst, recognize its regularity and improve the activity, selectivity and stability of the nanocrystalline catalyst Is an important scientific problem to be solved in the field of nanocatalysis. Our research group has conducted nanocatalytic research on these issues and challenges. This article summarizes the research results achieved by the research group in recent years.