引用本文:
胡大为, 秦永宁, 马智, 何菲. 负载型铁系钙钛矿催化剂结构对SO2还原的影响[J]. 应用化学,
2003, 20(5): 452-457.
Citation: HU Da-Wei, QIN Yong-Ning, MA Zhi, HE Fei. Iufluence of the Structure of Supported Fe-based Perovskite-type Oxide Catalyst on the SO2 Reduction[J]. Chinese Journal of Applied Chemistry, 2003, 20(5): 452-457.
Citation: HU Da-Wei, QIN Yong-Ning, MA Zhi, HE Fei. Iufluence of the Structure of Supported Fe-based Perovskite-type Oxide Catalyst on the SO2 Reduction[J]. Chinese Journal of Applied Chemistry, 2003, 20(5): 452-457.
负载型铁系钙钛矿催化剂结构对SO2还原的影响
English
Iufluence of the Structure of Supported Fe-based Perovskite-type Oxide Catalyst on the SO2 Reduction
Abstract:
The structure and property of γ-Al2O3 supported Fe-based perovskite-type oxide catalysts were studied.Doping with Cu2+、Co3+ in B-site could improve the redox property of catalysts,but the catalytic activity in SO2 reduction was decreased due to the strong adsorption of SO2,meanwhile,the oxidation of CO was hindered.Substitution of La with Sr decreases the catalyst redox property and SO2 reduction activity,as the defects change to ordered sequence.XRD result revealed that the ABO3 framework could be maintained in the reaction,so the ABO3 structure was regard as the active phase.XPS results also indicated that different kind of metal sulfide species shows different effect on the reaction.
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