Stable deacon process for HCl oxidation over RuO2

被引:122
作者
Crihan, Daniela [1 ]
Knapp, Marcus [1 ]
Zweidingey, Stefan [1 ]
Lundgren, Edvin [4 ]
Weststrate, Cornelis J. [4 ]
Andersen, Jesper N. [4 ]
Seitsonen, Ari P. [2 ,3 ]
Over, Herbert [1 ]
机构
[1] Univ Giessen, Inst Phys Chem, D-35392 Giessen, Germany
[2] CNRS, IMPC, F-75252 Paris, France
[3] Univ Paris 06, F-75252 Paris, France
[4] Lund Univ, Natl Synchrotron Radiat Res, S-22362 Lund, Sweden
关键词
deacon process; heterogeneous catalysis; oxide surfaces; ruthenium dioxide; surface chemistry;
D O I
10.1002/anie.200705124
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure Presented) Selective substitution: In the oxidation of HCl with oxygen to give Cl2 and water, RuO2(110) serves as a stable, active model catalyst for the Sumitomo process (see picture; Ru in red and blue). The stability of the catalyst is related to the selective replacement of undercoordinated bridging surface O atoms (Obr) by Cl atoms (Clbr). The chlorination of RuO2-(110) is self-limiting, in that chlorine incorporation terminates when all bridging O atoms are replaced. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:2131 / 2134
页数:4
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