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| Preparation, physico-chemical behavior and catalytic property for ammonia oxidation of perovskite like mixed oxides La2-xSrxCuO4-λ2 |
| WU YUE;GAO LIZHEN;YU ZUOLONG |
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Abstract A series of Sr^2^+ doped perovskite like oxides La2-xSrxCuO4-λ (x=0~1) were prepared, the structure, lattice parameters, content of Cu^3^+, oxygen vacancies created by Sr^2^+ substitution and composition of these complex oxides were studied by XRD and iodic titration method. The redox ability, active oxygen species and surface image were evaluated and analyzed with TPD, TG, XPS and SEM measurements. The catalytic activity for ammonia oxidation over these oxides was tested, and the relationship among the catalytic properties, structure, nonstoichiometric oxygen, redox ability and surface behavior were correlated and some information on the mechanism of ammonia oxidation was obtained.
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