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

被引：52

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

页码：1122 / 1126

页数：5

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