介孔Cu-Mn复合氧化物催化氧化苯甲醇合成苯甲醛的研究

郑海龙; 廖菽欢; 余林

doi:10.12052/gdutxb.160025

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介孔Cu-Mn复合氧化物催化氧化苯甲醇合成苯甲醛的研究

综合研究 | 更新时间：2026-05-27

- 介孔Cu-Mn复合氧化物催化氧化苯甲醇合成苯甲醛的研究
- A Research of Mesoporous Copper-Manganese Mixed Oxides for Selective Oxidation of Benzyl Alcohol to Benzaldehyde
- 广东工业大学学报 2017年34卷第2期页码：28-33
- 作者机构：
- 作者简介：
  
  郑海龙(1989-),硕士研究生,主要研究方向为纳米锰氧化物选择性催化氧化小分子有机物.
- 基金信息：
  
  国家自然科学基金资助项目（21576054）
- DOI：10.12052/gdutxb.160025
  中图分类号： TQ244
- 网络首发：2017-03-09，
  
  纸质出版：2017
- 稿件说明：
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郑海龙, 廖菽欢, 余林. 介孔Cu-Mn复合氧化物催化氧化苯甲醇合成苯甲醛的研究[J]. 广东工业大学学报, 2017, 34(2): 28-33.

Zheng Hai-long, Liao Shu-huan, Yu Lin. A Research of Mesoporous Copper-Manganese Mixed Oxides for Selective Oxidation of Benzyl Alcohol to Benzaldehyde[J]. 2017, 34(2): 28-33.
郑海龙, 廖菽欢, 余林. 介孔Cu-Mn复合氧化物催化氧化苯甲醇合成苯甲醛的研究[J]. 广东工业大学学报, 2017, 34(2): 28-33. DOI： 10.12052/gdutxb.160025.

Zheng Hai-long, Liao Shu-huan, Yu Lin. A Research of Mesoporous Copper-Manganese Mixed Oxides for Selective Oxidation of Benzyl Alcohol to Benzaldehyde[J]. 2017, 34(2): 28-33. DOI： 10.12052/gdutxb.160025.

摘要

采用无模板共沉淀法合成介孔Cu-Mn复合氧化物，该氧化物具有很高的比表面积且可大量合成.该复合氧化物（Cu-Mn-

，

=1，2，4）作为催化剂应用在以O

为氧化剂，甲苯为溶剂的苯甲醇选择性氧化合成苯甲醛的研究中，发现该催化剂显示出很高的活性.当

（Cu）：

（Mn）的设计比例为1：2时活性最高，在102℃的温度下，苯甲醇转化率达到90%时仅需20 min，选择性达到98%.催化剂的物理化学特性采用了XRD、SEM、TEM、BET、H

-TPR和EDS技术进行表征.结果表明，Cu和Mn具有协同促进作用，能够互相提高催化活性，但必须控制在一定的比例范围内；另外催化剂的活性与用量关系很大，量越大活性越高.

Abstract

A novel template-free co-precipitation method was applied to synthesize mesoporous copper-manganese mixed oxides with high surface area

which can be obtained in large quantities. Catalytic activity of copper-manganese mixed oxides (Cu-Mn-

4) has been studied in selective oxidation of benzyl alcohol using molecular oxygen as oxidizing agent and toluene as solvent. The catalysts exhibited highest activity

in which 90% conversion of the benzyl alcohol was achieved with 98% selectivity to benzaldehyde within a short reaction period only in 20 min at 102℃

when the design mole ratio of Cu/Mn was 1:2. The

physicochemical properties of the catalysts were characterized by XRD

SEM

TEM

BET

H2-TPR and EDS techniques. It shows that Cu and Mn can improve the catalytic performance each other effectively but there must be an appropriate mole ratio of Cu/Mn. In addition

there is a great relationship between the activity and the amount of catalysts

which shows that the higher activity the more catalysts.

关键词

Keywords

references

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