Han Xiao, Wu Geng, Du Junyi, Pi Jinglin, Yan Muyu, Hong Xun
Center of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China.
Chem Commun (Camb). 2021 Dec 23;58(2):223-237. doi: 10.1039/d1cc04141j.
Amorphous nanomaterials have aroused extensive interest due to their unique properties. Their performance is highly related with their distinct atomic arrangements, which have no long-range order but possess short- to medium-range order. Herein, an overview of state-of-the-art synthesis methods of amorphous nanomaterials, structural characteristics and their electrochemical properties is presented. Advanced characterization methods for analyzing and proving the local order of amorphous structures, such as X-ray absorption fine structure spectroscopy, atomic electron tomography and nanobeam electron diffraction, are introduced. Various synthesis strategies for amorphous nanomaterials are covered, especially the salt-assisted metal organic decomposition method to prepare ultrathin amorphous nanosheets. Furthermore, the design and structure-activity relationship of amorphous nanomaterials towards electrochemical applications, including electrocatalysts and battery anode/cathode materials, is discussed.
非晶态纳米材料因其独特的性质而引起了广泛关注。它们的性能与其独特的原子排列高度相关，这种排列没有长程有序，但具有短程到中程有序。本文综述了非晶态纳米材料的最新合成方法、结构特征及其电化学性质。介绍了用于分析和证明非晶态结构局部有序性的先进表征方法，如X射线吸收精细结构光谱、原子电子断层扫描和纳米束电子衍射。涵盖了非晶态纳米材料的各种合成策略，特别是用于制备超薄非晶态纳米片的盐辅助金属有机分解法。此外，还讨论了非晶态纳米材料在电化学应用方面的设计及其结构-活性关系，包括电催化剂和电池阳极/阴极材料。
