Wang Yuan, Hao Menggeng
Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
Sunan Institute for Molecular Engineering, Peking University, Changshu 215500, China.
Nanomaterials (Basel). 2023 Jan 30;13(3):565. doi: 10.3390/nano13030565.
The "unprotected" metal and alloy nanoclusters (UMCs) prepared by the alkaline ethylene glycol method, which are stabilized with simple ions and solvent molecules, have the advantages of a small particle size, a narrow size distribution, good stability, highly efficient preparation, easy separation, surface modification and transfer between different phases. They can be composited with diverse materials to prepare catalytic systems with controllable structures, providing an effective means of studying the different factors' effects on the catalytic properties separately. UMCs have been widely used in the development of high-performance catalysts for a variety of functional systems. This paper will review the research progress on the formation mechanism of the unprotected metal nanoclusters, exploring the structure-function relationship of metal nanocluster catalysts and the preparation of excellent metal catalysts using the unprotected metal nanoclusters as building blocks or starting materials. A principle of the influence of carriers, ligands and modifiers in metal nanocluster catalysts on the catalytic properties is proposed.
通过碱性乙二醇法制备的“无保护”金属和合金纳米团簇（UMCs），由简单离子和溶剂分子稳定，具有粒径小、尺寸分布窄、稳定性好、制备高效、分离容易、表面改性以及不同相之间转移等优点。它们可以与多种材料复合制备结构可控的催化体系，为分别研究不同因素对催化性能的影响提供了有效手段。UMCs已广泛应用于各种功能体系的高性能催化剂开发。本文将综述无保护金属纳米团簇形成机理的研究进展，探索金属纳米团簇催化剂的结构-功能关系以及以无保护金属纳米团簇为结构单元或起始原料制备优异金属催化剂的方法。提出了金属纳米团簇催化剂中载体、配体和改性剂对催化性能影响的原理。
