当前位置: X-MOL 学术Phys. Chem. Chem. Phys. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Single-atom site catalysts based on high specific surface area supports
Physical Chemistry Chemical Physics ( IF 3.3 ) Pub Date : 2022-06-24 , DOI: 10.1039/d2cp00736c
Ninghua Fu 1 , Xiao Liang 1 , Zhi Li 1 , Yadong Li 1
Affiliation  

Single-atom site catalysts (SASCs) are characterized with atomically dispersed isolated metal active sites and theoretically 100% metal dispersion. Supports with high specific surface area are crucial for the fabrication of highly efficient SASCs with maximized metal dispersion. The high specific surface area supports provide anchoring sites that stabilize the monodispersed active metal atoms. The metal atoms and their coordination environment jointly constitute the metal single-atom sites, which represent the active sites of SASCs. The selection of suitable supports is one of the key factors that determine the structures and properties of SASCs. In this perspective, we introduce various types of SASCs based on high specific surface area supports from 0-dimension to 3-dimension with different sorts of active sites and coordination environments. In particular, we select the most representative high specific surface supports in each dimension and introduce the corresponding SASCs and how different supports cooperate with single metal atoms to achieve efficient catalysis. We summarize the current developments, and also present future opportunities and challenges of SASCs, aiming to provide an instructive perspective of the SASCs based on high specific surface area supports.

中文翻译:

基于高比表面积载体的单原子中心催化剂

单原子位点催化剂 (SASC) 的特点是具有原子分散的孤立金属活性位点和理论上 100% 的金属分散性。具有高比表面积的载体对于制造具有最大化金属分散性的高效 SASC 至关重要。高比表面积载体提供稳定单分散活性金属原子的锚定位点。金属原子及其配位环境共同构成了金属单原子位点,代表了SASCs的活性位点。选择合适的支架是决定SASCs结构和性能的关键因素之一。从这个角度来看,我们介绍了基于高比表面积支持的各种类型的 SASC,从 0 维到 3 维具有不同类型的活性位点和配位环境。特别是,我们选择了每个维度上最具代表性的高比表面载体,并介绍了相应的SASCs以及不同的载体如何与单个金属原子配合以实现高效催化。我们总结了当前的发展,并介绍了 SASCs 的未来机遇和挑战,旨在为基于高比表面积支持的 SASCs 提供指导性视角。
更新日期:2022-06-24
down
wechat
bug