纳米晶
电催化剂
纳米技术
材料科学
催化作用
电化学
金属
原子单位
纳米尺度
表面工程
化学
物理化学
冶金
电极
物理
量子力学
生物化学
作者
Youngjoo Whang,Yong-Min Kwon,Hojin Ahn,Jong Wook Hong,Sang Woo Han
出处
期刊:Chemical physics reviews
[American Institute of Physics]
日期:2023-06-01
卷期号:4 (2)
被引量:1
摘要
Since the clean energy industry emerged, developing efficient nanocrystal catalysts has attracted ever-increasing attention. Recently, the utilization of metal nanocrystals as catalysts for electrochemical reactions is entering a new era with the development of theories and techniques that help incorporate surface chemistry into nanoscale materials. Current approaches in the field of nanocrystal catalysts include detailed analyses and modifications of the surface atoms of nanocrystals, with which optimal structures and compositions for target electrochemical reactions could be realized. This review presents two major strategies to engineer the surface structure of nanocrystals: control over the atomic arrangement and composition of nanocrystal surfaces. The first section mainly covers the modification of surface atom arrangements with various methods, including the induction of various facets, strains, and defects. The generation of anomalous crystal structures of nanocrystals is also discussed. The second section encompasses recent advances in controlling the composition of nanocrystal surfaces by bringing high entropy or periodicity to the metal elements in nanocrystals to attain high electrocatalytic activity and stability.
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