Transient studies of low temperature catalysts for methane conversion. Quarterly technical progress report, January 1, 1994--March 31, 1994 [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 1994.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 11 pages : digital, PDF file
- Additional Creators:
- University of Notre Dame, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- In our previous report we summarized activity -- selectivity results obtained on three metallo oxide catalysts LaCoO3, LaNiO3 and LaRhO3. It was found that although these materials were highly active for methane conversion, their selectivity varied from total combustion for the LaCoO3, to partial combustion for the LaRhO3 to C2 hydrocarbon formation for the Li promoted LaNiO3. In light of the above results, we focused on studying the Li promoted LaNiO3 catalyst using the transient techniques previously developed in our group. The effect of methane and oxygen pulses, isotopic exchange of oxygen and isotopic methane switches is reported. These experiments revealed that Li prevented the total oxidation of the hydrocarbon products being formed from methane. The role of Li is to block the rate of oxygen exchange between the gas phase and the lattice, thus inhibiting the oxidation of the C2 hydrocarbons.
- Report Numbers:
- E 1.99:doe/pc/92529--t6
- Other Subject(s):
- Published through SciTech Connect.
- Type of Report and Period Covered Note:
- Quarterly; 01/01/1994 - 03/31/1994
- Funding Information:
View MARC record | catkey: 14395739