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Fabrication of Single‐Atom Catalysts with Precise Structure and High Metal Loading
Advanced Materials ( IF 27.4 ) Pub Date : 2018-10-01 , DOI: 10.1002/adma.201801649 Jing Wang 1 , Zhijun Li 1 , Yuen Wu 1 , Yadong Li 2
Advanced Materials ( IF 27.4 ) Pub Date : 2018-10-01 , DOI: 10.1002/adma.201801649 Jing Wang 1 , Zhijun Li 1 , Yuen Wu 1 , Yadong Li 2
Affiliation
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In recent years, single‐atom catalysts (SACs) have attracted particular interest and have been demonstrated to be a promising material in energy conversion and chemical transformation due to their optimal atom utilization and unique size quantum effect. The development of a versatile and simple synthetic approach for SACs is important for further investigation of their properties. In this regard, several physical and chemical methods have been developed to access SACs by varying the interaction between metal centers and the coordination defects of the supports. The common challenges for SACs in industrial applications are accurate control over the local structure of single sites and increasing the active‐site density. On one hand, the rational design of the atomic structure is decisive to their intrinsic activity, which will affect the adsorption and activation of reactants over the single sites. On the other hand, increasing the metal loading of SACs would largely enhance the density of active sites and the corresponding mass activity, especially for industrial applications. Here, approaches to the synthesis of SACs—focusing on these two challenges—are highlighted.
中文翻译：
具有精确结构和高金属负载的单原子催化剂的制备
近年来，单原子催化剂（SAC）引起了人们的特别兴趣，并且由于其最佳的原子利用率和独特的尺寸量子效应，已被证明是一种有前途的能量转化和化学转化材料。SAC通用且简单的合成方法的开发对于进一步研究其性能非常重要。在这方面，已经开发了几种物理和化学方法以通过改变金属中心与载体的配位缺陷之间的相互作用来获得SAC。SAC在工业应用中的常见挑战是对单个站点的本地结构进行精确控制并增加活动站点的密度。一方面，原子结构的合理设计决定了它们的内在活性，这将影响反应物在单个位点上的吸附和活化。另一方面，增加SAC的金属负载量将大大提高活性位点的密度和相应的质量活性，特别是对于工业应用而言。在此，着重介绍了SAC的合成方法（针对这两个挑战）。
更新日期：2018-10-01
中文翻译：
具有精确结构和高金属负载的单原子催化剂的制备
近年来，单原子催化剂（SAC）引起了人们的特别兴趣，并且由于其最佳的原子利用率和独特的尺寸量子效应，已被证明是一种有前途的能量转化和化学转化材料。SAC通用且简单的合成方法的开发对于进一步研究其性能非常重要。在这方面，已经开发了几种物理和化学方法以通过改变金属中心与载体的配位缺陷之间的相互作用来获得SAC。SAC在工业应用中的常见挑战是对单个站点的本地结构进行精确控制并增加活动站点的密度。一方面，原子结构的合理设计决定了它们的内在活性，这将影响反应物在单个位点上的吸附和活化。另一方面，增加SAC的金属负载量将大大提高活性位点的密度和相应的质量活性，特别是对于工业应用而言。在此，着重介绍了SAC的合成方法（针对这两个挑战）。
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