Journal
TOPICS IN CATALYSIS
Volume 60, Issue 12-14, Pages 831-842Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11244-017-0748-6
Keywords
Methane steam reforming; Non-thermal plasma treatment; Perovskite; Ni-based catalysts; Coke resistance
Categories
Funding
- National Natural Science Foundation of China [21567016, 21566022, 21263015]
- Natural Science Foundation of Jiangxi Province [20151BBE50006, 20151BAB203024]
- Education Department of Jiangxi Province [KJLD14005, GJJ150016]
- Graduate Student Creativity Funding of Nanchang University [CX2015042]
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Steam reforming of methane for hydrogen production was performed over Ni catalysts supported on LaFeO3 perovskites synthesized with different methods and treated by non-thermal dielectric barrier discharge plasma (DBD) in H-2/Ar atmosphere. It is found that catalysts prepared by glycine-nitrate combustion and sol-gel method show better performance than the one prepared with precipitation method. With plasma treatment before calcination, the catalytic performance of all the catalysts has been evidently improved. It is revealed that plasma treating can enhance the interaction between Ni and the LaFeO3 supports, thus resulting in catalysts with improved Ni dispersion, higher thermal stability and improved surface areas. SEM and TGA-DSC results testified that on the plasma treated catalysts, carbon deposition can be suppressed. These are believed to be the major reasons accounting for the improved catalytic performance of the catalysts by plasma treatment.
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