期刊
ACS CATALYSIS
卷 4, 期 11, 页码 3886-3890出版社
AMER CHEMICAL SOC
DOI: 10.1021/cs500740u
关键词
single atom catalysis; methnaol steam reforming; density functional theory; electron microscopy activity selectivity
资金
- NSFC [21173210, 21103165, 21225315]
- College of Liberal Arts and Sciences of Arizona State University
- [2013CB834603]
The single Pt-1 and Au-1 atoms stabilized by lattice oxygen on ZnO{1010} surface for methanol steam reforming is reported. Density functional theory calculations reveal that the catalysis of the single precious metal atoms together with coordinated lattice oxygen stems from its stronger binding toward the intermediates, lowering reaction barriers, changing on the reaction pathway, enhancing greatly the activity. The measured turnover frequency of single Pt1 sites was more than 1000 times higher than the pristine ZnO. The results provide valuable insights for the catalysis of the atomically dispersed precious metals on oxide supports.
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