Enhanced Activity in Methane Dry Reforming by Carbon Dioxide Induced Metal‐Oxide Interface Restructuring of Nickel/Zirconia
Enhanced Activity in Methane Dry Reforming by Carbon Dioxide Induced Metal‐Oxide Interface Restructuring of Nickel/Zirconia
复制标题
通过二氧化碳诱导镍/氧化锆金属氧化物界面重构增强甲烷干重整活性
DOI:
10.1002/cctc.201700686
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发表时间:
2017
期刊:
影响因子:
4.5
通讯作者:
J. A. Lercher
中科院分区:
文献类型:
--
作者:
Y. Lou;M. Steib;A. Jentys;J. A. Lercher
The activity of the Ni/ZrO2catalyst for the dry reforming of methane was significantly enhanced by activation and regeneration in the presence of CO2. Exposure to CO2maximized and dynamically restructured the Ni–ZrO2interface, which was critical to obtain a stable catalyst. The ZrO2−xspecies at this interface was found to act catalytically by accepting and transferring one oxygen atom of CO2to the Ni surface, which resulted in the release of CO in the decomposition of transiently formed carbonates. This was found to open a fast additional reaction pathway to convert CO2that eclipsed direct CO2dissociation on Ni. The kinetically controlled availability of atomic oxygen by this pathway reduced the carbon concentration on the surface, which led to less refractory carbon deposition and more facile regeneration.
影响因子:
7.3
作者:
Bitter, JH;Seshan, K;Lercher, JA
通讯作者:
Lercher, JA
影响因子:
3.9
作者:
Arora, Shalini;Prasad, R.
通讯作者:
Prasad, R.
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
V. Bychkov;O. Krylov;V. Korchak
通讯作者:
V. Korchak