期刊
FUEL
卷 107, 期 -, 页码 879-881出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2013.01.058
关键词
Oxidative coupling of methane; Carbon dioxide; Electric field; La-ZrO2 catalyst
资金
- Grants-in-Aid for Scientific Research [22360340] Funding Source: KAKEN
Oxidative coupling of methane using carbon dioxide (CO2-OCM) as an oxidant was conducted over several La- and Zr-based catalysts in an electric field at low external temperature of 423 K. Higher catalytic activity was obtained than in a conventional catalytic reaction over 10 mol% lanthanum-doped zirconia (La-ZrO2) in the electric field. Although the catalytic activity for the CO2-OCM was low over the La-ZrO2 at 1173 K without the application of the electric field, the electric field promoted catalytic activity even at 423 K external temperature. We optimized the amount of doping-La in the La-ZrO2 system, and characterized the effect of doping-La with XRD measurement. From these examinations, 5 mol% La-ZrO2 catalyst showed the highest activity. High catalytic activity was provided by the synergistic effect of the La- cation, tetragonal-ZrO2, and the electric field. (c) 2013 Elsevier Ltd. All rights reserved.
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