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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. shu

Iufluence of the Structure of Supported Fe-based Perovskite-type Oxide Catalyst on the SO₂ Reduction

HU Da-Wei ^a,, ,
QIN Yong-Ning ^a ,
MA Zhi ^a,b,c ,
HE Fei ^b

1.
a School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072;
2.
b State Key Laboratary of C1 Chemistry and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin;
3.
c United Academe of Nankai University and Tianjin University, Tianjin

Corresponding author: HU Da-Wei,
Received Date: 27 November 2002
Available Online: 30 January 2003
Fund Project:

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.
- supported catalyst,
- Fe-based perovskite-type oxide,
- sulfur dioxide,
- catalytic reduction
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Iufluence of the Structure of Supported Fe-based Perovskite-type Oxide Catalyst on the SO₂ Reduction