期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 5, 期 6, 页码 4517-4522出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.7b00717
关键词
Structured catalyst; Nanosheet; Layered double hydroxide; Composite oxide; Dry reforming of methane; Interface-assisted method
资金
- NSF of China [21473057, U1462129, 21273075, 21076083]
- MOST of China [2011CB201403]
An FeCrAl-fiber-structured NiO-MgO-Al2O3 nanocomposite catalyst engineered from nano- to macro-scale in one-step is developed via thermally decomposing NiMgAl layered double hydroxides (LDHs) that can be grown onto the FeCrAl-fiber only through a gamma-Al2O3/water interface-assisted method. By taking advantages of homogeneous component-distribution in the LDHs-derived NiO-MgO-Al2O3 nanocomposites and enhanced heat transfer, this promising catalyst delivers satisfying performance with enhanced coking/sintering resistance in the title reaction. At 800 degrees C and a gas hourly space velocity of 5000 mL g(-1) h(-1) CH4/CO2 conversion maintains almost constant at 91%/89% within the initial 90 h and then slides in a smooth downturn (to 80/85%) within another 180 h of reaction.
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