原子单位
催化作用
材料科学
金属有机骨架
Atom(片上系统)
离子
析氧
活动站点
氧气
氧原子
金属
化学物理
化学工程
无机化学
纳米技术
物理化学
分子
化学
电极
有机化学
电化学
冶金
物理
吸附
嵌入式系统
工程类
量子力学
计算机科学
作者
Shuo Dou,Chung‐Li Dong,Zhe Hu,Yu‐Cheng Huang,Jeng‐Lung Chen,Tao Li,Dafeng Yan,Fan Chen,Shaohua Shen,Shulei Chou,Shuangyin Wang
标识
DOI:10.1002/adfm.201702546
摘要
The activity of electrocatalysts strongly depends on the number of active sites, which can be increased by downsizing electrocatalysts. Single‐atom catalysts have attracted special attention due to atomic‐scale active sites. However, it is a huge challenge to obtain atomic‐scale CoO x catalysts. The Co‐based metal–organic frameworks (MOFs) own atomically dispersed Co ions, which motivates to design a possible pathway to partially on‐site transform these Co ions to active atomic‐scale CoO x species, while reserving the highly porous features of MOFs. In this work, for the first time, the targeted on‐site formation of atomic‐scale CoO x species is realized in ZIF‐67 by O 2 plasma. The abundant pores in ZIF‐67 provide channels for O 2 plasma to activate the Co ions in MOFs to on‐site produce atomic‐scale CoO x species, which act as the active sites to catalyze the oxygen evolution reaction with an even better activity than RuO 2 .
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