MOF-templated preparation of porous Au/Cu<sub>x</sub>O catalysts with octahedral structures for CO oxidation

LIU Pengfei; ZHANG Suoying; YANG Zhuhong; LU Xiaohua

doi:10.11949/j.issn.0438-1157.20160002

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MOF-templated preparation of porous Au/Cu_xO catalysts with octahedral structures for CO oxidation

更新时间：2025-11-26

- MOF-templated preparation of porous Au/Cu_xO catalysts with octahedral structures for CO oxidation
- CIESC Journal Issue 6, Pages: 2325-2331(2016)
- 作者机构：
  
  南京工业大学化学化工学院, 材料化学工程国家重点实验室,江苏,南京,210009
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160002
  CLC： 643TQ426
- Online First：05 June 2016，
  
  Published：05 June 2016
- 稿件说明：
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LIU Pengfei, ZHANG Suoying, YANG Zhuhong, et al. MOF-templated preparation of porous Au/Cu_xO catalysts with octahedral structures for CO oxidation[J]. CIESC Journal, 2016, (6): 2325-2331. DOI: 10.11949/j.issn.0438-1157.20160002.
DOI：

LIU Pengfei, ZHANG Suoying, YANG Zhuhong, et al. MOF-templated preparation of porous Au/Cu_xO catalysts with octahedral structures for CO oxidation[J]. CIESC Journal, 2016, (6): 2325-2331. DOI: 10.11949/j.issn.0438-1157.20160002. DOI：

摘要

采用MOF材料作模板

通过在Cu-BTC材料表面预先负载贵金属Au再热解的方法

成功制备了具有正八面体结构的新型多孔Au/CuxO负载型催化剂。通过降低热解环境中的O2浓度

调节氧化时间

实现了Au/Cu-BTC氧化产物组分的调节

分别制得了Au/Cu2O、Au/Cu2O-CuO、Au/CuO复合催化材料。将其用于CO催化氧化

发现所有Au/CuxO催化剂都表现出比Cu-BTC和Au/Cu-BTC更优异的催化性能

其中由于拥有较高的比表面积、Cu2O含量以及更好的Au的分散性

Au/Cu2O的CO氧化活性最佳

180℃即能实现CO的完全转化。

Abstract

More recently

metal-organic frameworks (MOFs)

as a excellent sacrificial template

have been widely used to fabricate a variety of porous metal oxides with special structures and performances. To take full advantage of MOFs in composition regulation

herein a novel method to prepare porous Au/CuxO composites with octahedral structures inherited from MOFs was introduced. Au/Cu-BTC was firstly prepared by the traditional deposition-precipitation method. Subsequently

pyrolysis of Au/Cu-BTC was conducted in 2% (volume fraction) O2 balanced with helium. By varying the time of heating

Au/CuxO composites including Au/Cu2O

Au/Cu2O-CuO and Au/CuO were successfully achieved. When tested in CO oxidation

these supported catalysts exhibited much better catalytic performances than Cu-BTC and Au/Cu-BTC due to the more active support of metal oxides. Thus

Au/Cu2O showed the best catalytic activity since the high surface area

Cu2O content and better dispersion of Au.

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MOF-templated preparation of porous Au/CuxO catalysts with octahedral structures for CO oxidation

DOI：10.11949/j.issn.0438-1157.20160002

摘要

Abstract

关键词

Keywords

references

MOF-templated preparation of porous Au/Cu_xO catalysts with octahedral structures for CO oxidation