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当前,环境问题和能源危机已经威胁到人类的健康和生存。用于环境治理和化学能源合成新概念的纳米催化材料越来越受到人们的关注。催化作为一个特殊的纳米现象,是纳米材料应用领域的一个重要方向,在环境净化、能量转化和新化学品的生产等方面具有广泛的应用前景。早期的一氧化碳(CO)催化氧化研究主要集中在催化剂的制备方法以及制备条件对催化反应的影响等方面。本文针对CO催化氧化这一基础课题,以影响CO催化氧化的关键因素(如金属颗粒的大小,金属与载体之间的相互作用以及载体本身的作用等)为主线,简要概述了近年来CO催化氧化的催化机理及相关催化剂的最新研究进展。同时,结合我们课题组的一些最新研究结果,进一步指出了纳米材料在CO催化氧化方面还存在的一些值得关注的问题,并对未来CO氧化催化剂的研究做出展望,提出一些可行的研究方向。
At present, environmental problems and the energy crisis have already threatened human health and survival. Nanocatalytic materials for environmental management and new concepts of chemical energy synthesis are attracting more and more attention. As a special nanometer phenomenon, catalysis is an important direction for the application of nanomaterials. Catalysis has a wide range of applications in environmental purification, energy conversion and the production of new chemicals. The early studies on the catalytic oxidation of carbon monoxide (CO) mainly focus on the preparation of catalysts and the influence of preparation conditions on the catalytic reaction. In this paper, we focused on the basic topic of CO catalytic oxidation. In this paper, the key factors affecting the catalytic CO oxidation (such as the size of metal particles, the interaction between metal and support and the role of support) Recent Advances in Oxidation Catalytic Mechanism and Related Catalysts. At the same time, some recent research results of our research group are also pointed out that some interesting problems in the catalytic oxidation of CO with nano-sized materials are pointed out. Finally, some future research directions of CO oxidation catalysts are proposed.