Methanol decomposition over palladium supported mesoporous CeO2-ZrO2 mixed oxides

被引：67

作者：

Kapoor, MP

Raj, A

Matsumura, Y

机构：

[1] Osaka Natl Res Inst, AIST, Dept Energy & Environm, Ikeda, Osaka 5638577, Japan

[2] Natl Inst Mat & Chem Res, Tailored Nanostruct Grp, Tsukuba, Ibaraki 3058565, Japan

[3] Res Inst Innovat Technol Earth, Kyoto 6190292, Japan

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2001年 / 44卷

关键词：

mesoporous oxides; palladium; deposition-precipitation; nanoparticles; ceria-zirconia; methanol decomposition;

D O I：

10.1016/S1387-1811(01)00235-9

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Mesoporous CeO2-ZrO2 mixed oxides with high surface area and regular pore system were synthesized and their applications as an active support of palladium catalysts prepared by the deposition-precipitation (DP) method is investigated. The nanometer sized particle strongly interacts with the mesoporous supports. Catalysts were characterized using XRD, TEM, N-2 physisorption, BET surface area, and hydrogen adsorption. Compared to mesoporous Pd/CeO2 and mesoporous Pd/ZrO2, the mesoporous Pd/CeO2-ZrO2 mixed oxides are found to be effective catalysts for the methanol decomposition. The effect of ultrasonic vibration during the DP of palladium over the supports further enhances the catalytic activity. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：565 / 572

页数：8

共 24 条

[1] Formation of a porous zirconium oxo phosphate with a high surface area by a surfactant-assisted synthesis [J].