期刊
SCIENCE
卷 357, 期 6349, 页码 389-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aah4321
关键词
-
资金
- 973 Project [2017YFB0602200, 2013CB933100, 2011CB201402]
- CAS Pioneer Hundred Talents Program
- Natural Science Foundation of China [91645115, 21473003, 21222306, 21373037, 21577013, 91545121]
- U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division
- Fundamental Research Funds for the Central Universities [DUT15TD49, DUT16ZD224]
- DOE [DE-SC0012704]
- Office of Science, Office of Basic Energy Sciences, of the DOE [DE-AC02-05CH11231]
- Advanced Light Source Doctoral Fellowship
- U.S. National Science Foundation Major Research Instrumentation program [MRI/DMR-1040229]
The water-gas shift (WGS) reaction (where carbon monoxide plus water yields dihydrogen and carbon dioxide) is an essential process for hydrogen generation and carbon monoxide removal in various energy-related chemical operations. This equilibrium-limited reaction is favored at a low working temperature. Potential application in fuel cells also requires a WGS catalyst to be highly active, stable, and energy-efficient and to match the working temperature of on-site hydrogen generation and consumption units. We synthesized layered gold (Au) clusters on a molybdenum carbide (alpha-MoC) substrate to create an interfacial catalyst system for the ultralow-temperature WGS reaction. Water was activated over alpha-MoC at 303 kelvin, whereas carbon monoxide adsorbed on adjacent Au sites was apt to react with surface hydroxyl groups formed from water splitting, leading to a high WGS activity at low temperatures.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据