Insights into the nature of alumina-supported MnOOH and its catalytic performance in the aerobic oxidation of benzyl alcohol

被引：51
|
作者：
Tang, Qinghu [1 ,2 ]
Gong, Xiaonan [2 ]
Wu, Chengming [2 ]
Chen, Yuanting [1 ]
Borgna, Armando [3 ]
Yang, Yanhui [1 ]
机构：
[1] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore
[2] Henan Normal Univ, Dept Chem, Xinxiang 453007, Peoples R China
[3] ASTAR, Inst Chem & Engn Sci, Singapore 627833, Singapore
来源：
CATALYSIS COMMUNICATIONS | 2009年 / 10卷 / 07期
关键词：
MnOOH; Alumina; Benzyl alcohol; Molecular oxygen; MOLECULAR-OXYGEN; SELECTIVE OXIDATION; SOLID CATALYSTS; MANGANESE OXIDE; HYDROTALCITE; BENZALDEHYDE; EFFICIENT; KINETICS; METAL;
D O I：
10.1016/j.catcom.2009.01.011
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：
We report the synthesis of alumina-supported manganese catalysts by a homogeneous deposition-precipitation method and their catalytic application in the aerobic oxidation of benzyl alcohol. Benzyl alcohol conversion of 93% was achieved with benzaldehyde as the main product. This Mn-based catalyst can be recycled up to six times without losing catalytic activity. X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS) indicated that MnOOH species are highly dispersed on the alumina surface at low Mn loadings (< 10 wt.%). These MnOOH species aggregated into Mn3O4 crystallites at high Mn loadings. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：1122 / 1126
页数：5
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