高等学校化学学报

高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (4): 900.doi: 10.7503/cjcu20120900

• 物理化学 • 上一篇    下一篇

多孔铜基催化剂的制备及对苯甲醇的选择性催化氧化

张功尚, 邢新峰, 管瑜, 周爱秋, 张晓梅, 许效红   

  1. 山东大学化学与化工学院, 济南 250100
  • 收稿日期:2012-09-28 出版日期:2013-04-10 发布日期:2013-03-22
  • 通讯作者: 许效红,女,博士,教授,主要从事催化材料的制备及应用方面的研究.E-mail:xhxu@sdu.edu.cn E-mail:xhxu@sdu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:21171106,21176144)和山东省科技发展计划项目(批准号:2010GGX10314)资助.

Preparation of Porous Copper-based Catalysts and Their Selective Catalytic Oxidation of Benzyl Alcohol

ZHANG Gong-Shang, XING Xin-Feng, GUAN Yu, ZHOU Ai-Qiu, ZHANG Xiao-Mei   

  1. School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
  • Received:2012-09-28 Online:2013-04-10 Published:2013-03-22

PDF (PC)

被引次数

7

摘要：

采用去合金化法制备了多孔铜(PC), 并以此为还原剂和模板与含有贵金属离子的溶液进行置换反应, 简单有效地制备了多孔M/PC(M=Ag, Au, Pt, Pd)双金属催化剂, 并对样品的形貌\, 结构和化学组成进行了表征, 利用苯甲醇气相选择性催化氧化实验评价了其催化性能. 实验结果表明, 所制备的多孔铜基催化剂具有良好的双金属协同催化效应, 对苯甲醇气相选择性氧化具有很好的催化活性和选择性, 其中Ag/PC具有最优的催化性能.

关键词: 多孔铜, 置换反应, 双金属, 苯甲醇, 气相催化

Abstract:

We fabricated porous copper(PC) by dealloying Al from Cu-Al alloy and obtained M/PC(M=Ag, Au, Pt, Pd) through galvanic replacement of Cu with noble metals using PC as reductant and template. The structural and chemical properties of the samples were characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM) with energy-dispersive X-ray spectroscopy(EDS). The catalytic performance of PC and M/PC for gas-phase selective oxidation of benzyl alcohol was investigated. PC-based M/PC catalysts showed relatively high catalytic activity in oxidation of benzyl alcohol at high temperature, among which 1% Ag/PC had the best catalytic properties.

Key words: Porous copper, Galvanic replacement, Bimetal, Benzyl alcohol, Aerobic oxidation

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