Direct synthesis of hydrogen peroxide from hydrogen and oxygen over palladium catalysts supported on TiO2-ZrO2 mixed metal oxides

被引:19
|
作者
Park, Sunyoung [1 ]
Seo, Jeong Gil [1 ]
Jung, Ji Chul [1 ]
Baeck, Sung-Hyeon [2 ]
Kim, Tae Jin [3 ]
Chung, Young-Min [3 ]
Oh, Seung-Hoon [3 ]
Song, In Kyu [1 ]
机构
[1] Seoul Natl Univ, Inst Chem Proc, Sch Chem & Biol Engn, Seoul 151744, South Korea
[2] Inha Univ, Dept Chem Engn, Inchon 402751, South Korea
[3] SK Energy Corp, Taejon 305712, South Korea
关键词
Hydrogen peroxide; Hydrogen; Oxygen; Pd/TiO2-ZrO2; Acidity; AQUEOUS-MEDIUM; PD CATALYSTS; H2O2; H-2; O-2; OXIDATION; ZIRCONIA; ACID;
D O I
10.1016/j.catcom.2009.05.026
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
TiO2-ZrO2 (TZ-X (X = 0, 25. 50, 75, and 100)) supports were prepared by a co-precipitation method with a variation of ZrO2 content (X, mol%). Pd/TiO2-ZrO2 (Pd/TZ-X) catalysts prepared by an incipient wetness method were then applied to the direct synthesis of hydrogen peroxide from hydrogen and oxygen. it was revealed that both total acidity and surface acidity of Pd/TZ-X catalysts played an important role in determining the catalytic performance in the direct synthesis of hydrogen peroxide. Among the catalysts tested, Pd/TZ-75 catalyst with the largest total acidity and the largest surface acidity showed the highest yield for hydrogen peroxide. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:1762 / 1765
页数:4
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