LAUSR

Oxidation of CO into CO 2 is a major solution to reduce CO emission into the atmosphere and to remove CO in fuel gas cleanup. Furthermore, CO oxidation serves as a prototypical reaction for heterogeneous catalysis. This review provides an overview and an update on how to study catalytic CO oxidation at a strictly molecular level by performing well-controlled gas-phase experiments in combination with quantum chemistry calculations. The advances in the unique catalytic reactivity of single-atom cluster catalysts are emphasized. The catalytically active sites and various mechanistic aspects in the redox couples N 2 O/CO and O 2 /CO for the seemingly simple oxidation reaction are described. 将一氧化碳(CO)氧化成二氧化碳(CO 2 )是降低大气中CO排 放和相关气体净化的有效方法, CO氧化也是非均相催化领域研究 的重要模型反应. 利用质谱实验结合量子化学理论计算, 研究原子 团簇催化氧化CO能够获得相关催化过程的微观反应机制. 本文综 述了气相原子团簇催化氧化CO的最新研究进展, 重点关注单原子 团簇催化剂独特的催化活性. 围绕CO + N 2 O → CO 2 + N 2 和2CO + O 2 → 2CO 2 两个催化反应, 本文详细讨论了催化活性位的结构特 点以及不同类型的催化反应机制.