Tuning performance of Pd/Sn0.9Ce0.1O2 catalyst for methane combustion by optimizing calcination temperature of support

被引：21

作者：

Shen, Kai ^{[1
]}

Lin, Jia-Pan ^{[2
,3
]}

Xia, Qian ^{[1
]}

Dai, Lu ^{[1
]}

Zhou, Guo-Jun ^{[1
]}

Guo, Yang-Long ^{[2
,3
]}

Lu, Guan-Zhong ^{[2
,3
]}

Zhan, Wang-Cheng ^{[2
,3
]}

机构：

[1] China Tobacco Zhejiang Ind Co Ltd, Technol Ctr, Hangzhou 310024, Zhejiang, Peoples R China

[2] East China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China

[3] East China Univ Sci & Technol, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China

来源：

RARE METALS | 2019年 / 38卷 / 02期

关键词：

Catalytic combustion; Methane; PdO; SnxCe1-xO2; Calcination temperature; TOTAL OXIDATION; OXYGEN STORAGE; MIXED OXIDES; PALLADIUM; ACTIVATION; REDUCTION; CO; PERSPECTIVES; REACTIVITY; INSIGHT;

D O I：

10.1007/s12598-018-1081-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of 0.2wt% Pd/Sn0.9Ce0.1O2 catalysts were prepared by impregnation method based on the pre-synthesis of Sn0.9Ce0.1O2 support prepared by co-precipitation method, and then characterized by Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman, CO chemical adsorption and hydrogen temperature-programmed reduction (H-2-TPR) techniques. The effect of calcination temperature of the composite oxide support on the catalytic performances of the Pd/Sn0.9Ce0.1O2 catalyst for the CH4 total oxidation was studied. It is found that the catalytic activity of the Pd/Sn0.9Ce0.1O2 catalyst increases with the increase in calcination temperature of the Pd/Sn0.9Ce0.1O2 support. The 0.2wt% Pd/Sn0.9Ce0.1O2/1100 catalyst (the Pd/Sn0.9Ce0.1O2 support was calcined at 1100 degrees C) exhibits the best reactive activity (T-10=255 degrees C). The excellent activity of the 0.2wt% Pd/Sn0.9Ce0.1O2/1100 catalyst should be attributed to the high reducibility of PdO, the excellent oxygen mobility of the support and the high content of active Pd2+ species on the Pd/Sn0.9Ce0.1O2 catalyst.

引用

页码：107 / 114

页数：8

共 56 条

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