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- W4284974166 abstract "• Evaluation of typical support structures for the catalytic DRM reaction. • Unveiling the confinement effect of SBA-15 pores on Ni-catalysts in DRM. • Optimization of pore size in Ni/SBA-15 without sintering of Ni particles. Dry reforming of methane (DRM) is an efficient reaction path in converting two major greenhouse gases of CO 2 and CH 4 into valuable chemical products. However, the rapid deactivation of catalysts restricts its development to a large extent. Attempts to combat the problem have been made in this work through evaluating potential supports of La 0.7 Sr 0.3 AlO 3 and SBA-15, and understanding the confinement effect of support pores, in order to construct Ni-catalysts with high activity and durability. Results show that SBA-15 support possesses better resistance to carbon deposition than La 0.7 Sr 0.3 AlO 3 , leading to a much better catalytic performance in DRM. Moreover, Ni/SBA-15 catalyst with pores smaller than approximate 10 nm is found to be able to withstand very harsh DRM reaction conditions of GHSV = 72,000 mLg cat −1 h −1 and CH 4 /CO 2 = 1.5 for 10 h at 650 °C, and the stability of catalysts is determined to be in the order of Ni/SBA-15 > Ni/SBA-15-HC > Ni/SBA-15-TMB. The reason is suggested to be the mitigation of nickel particles aggregation due to confining pores." @default.
- W4284974166 created "2022-07-10" @default.
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- W4284974166 date "2022-11-01" @default.
- W4284974166 modified "2023-10-09" @default.
- W4284974166 title "Understanding the role of support structure in methane dry reforming for syngas production" @default.
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- W4284974166 doi "https://doi.org/10.1016/j.fuel.2022.125163" @default.
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