School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.
School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.
Chem Rev. 2021 Jan 27;121(2):649-735. doi: 10.1021/acs.chemrev.0c00454. Epub 2020 Jul 15.
The successful synthesis of noble-metal nanocrystals with controlled shapes offers many opportunities to not only maneuver their physicochemical properties but also optimize their figures of merit in a wide variety of applications. In particular, heterogeneous catalysis and surface science have benefited enormously from the availability of this new class of nanomaterials as the atomic structure presented on the surface of a nanocrystal is ultimately determined by its geometric shape. The immediate advantages may include significant enhancement in catalytic activity and/or selectivity and substantial reduction in materials cost while providing a well-defined model system for mechanistic study. With a focus on the monometallic system, this review article provides a comprehensive account of recent progress in the development of noble-metal nanocrystals with controlled shapes, in addition to their remarkable performance in a large number of catalytic and electrocatalytic reactions. We hope that this review article offers the impetus and roadmap for the development of next-generation catalysts vital to a broad range of industrial applications.
成功合成具有可控形状的贵金属纳米晶体不仅为操控其物理化学性质提供了许多机会，而且为在各种应用中优化其性能提供了可能。特别是，多相催化和表面科学从这种新型纳米材料的可用性中受益匪浅，因为纳米晶体表面呈现的原子结构最终由其几何形状决定。直接的优势可能包括显著提高催化活性和/或选择性，以及大幅降低材料成本，同时为机理研究提供了一个明确的模型体系。本文重点介绍了单金属体系，全面阐述了具有可控形状的贵金属纳米晶体的最新研究进展，以及它们在大量催化和电催化反应中的优异性能。我们希望这篇综述文章为开发对广泛工业应用至关重要的下一代催化剂提供动力和路线图。
