催化作用
氨硼烷
制氢
氧化钴
氧化物
氮化物
钴
材料科学
氢
接口(物质)
分子
化学工程
吸附
金属
氨生产
纳米技术
化学
物理化学
无机化学
图层(电子)
有机化学
冶金
工程类
吉布斯等温线
作者
Shuyan Guan,Yanyan Liu,Huanhuan Zhang,Huijuan Wei,Tao Liu,Xianli Wu,Hao Wen,Ruofan Shen,Sehrish Mehdi,Xianghong Ge,Chengming Wang,Baozhong Liu,Erjun Liang,Yanping Fan,Baojun Li
出处
期刊:Small
[Wiley]
日期:2022-05-04
卷期号:18 (22)
被引量:22
标识
DOI:10.1002/smll.202107417
摘要
The rational design of the interface structure between nitride and oxide using the same metallic element and correlating the interfacial active center with a determined catalytic mechanism remain challenging. Herein, a Co4 N-Co3 O4 interface structure is designed to determine the effect of interfacial active centers on hydrogen generation from ammonia borane. An unparalleled catalytic activity toward H2 production with a turnover frequency up to 79 min-1 is achieved on Co4 N-Co3 O4 @C catalyst for ten recycles. Experimental analyses and theoretical simulation suggest that the atomic interface-exciting effect (AieE) is responsible for the high catalytic activity. The Co4 N-Co3 O4 interface facilitates the targeted adsorption and activation of NH3 BH3 and H2 O molecules to generate H* and H2 . The two active centers of Co(N)* and Co(O)* at the Co4 N-Co3 O4 interface activate NH3 BH3 and H2 O, respectively. This proof-of-concept research on AieE provides important insights regarding the design of heterogeneous catalysts and promotes the development of the nature and regulation of energy chemical conversion.
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