Preparation of Cu-Ni/C Catalyst at Low Temperature for Synthesis of Dimethyl Carbonate (DMC)

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Preparation of Cu-Ni/C Catalyst at Low Temperature for Synthesis of Dimethyl Carbonate (DMC)

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- Preparation of Cu-Ni/C Catalyst at Low Temperature for Synthesis of Dimethyl Carbonate (DMC)
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 50, Issue 6, Pages: 78-81(2011)
- 作者机构：
  
  中山大学低碳化学与过程节能广东省重点实验室,广东,广州,510275
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011，
  
  Published Online：25 November 2011，
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Preparation of Cu-Ni/C Catalyst at Low Temperature for Synthesis of Dimethyl Carbonate (DMC). [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 50(6):78-81(2011)
DOI：

Preparation of Cu-Ni/C Catalyst at Low Temperature for Synthesis of Dimethyl Carbonate (DMC). [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 50(6):78-81(2011) DOI：

摘要

采用氧化石墨（GO）作为碳素载体前驱体，金属氨配合物作为金属前驱体，用水合肼以低温液相还原的方式制备了碳负载铜镍合金催化剂（Cu-Ni/C）。通过FTIR、XRD、SEM、TEM和微反技术来研究催化剂的微观结构和反应性能。结果表明，90 ℃下还原得到碳负载的铜镍合金催化剂的合金粒径小于50 nm，能很好的分散于载体表面。在140 ℃，0.6 MPa的条件下，CH

OH和CO

在催化剂的金属活性位上发生反应，生成碳酸二甲酯（DMC），甲醇的最高转化率为4.2%

DMC的选择性达到84.5%。

Abstract

Carbon supported copper-nickel alloy catalysts (Cu-Ni/C) were prepared by the low temperature hydrothermal reduction method. The Cu-Ni/C catalysts were characterized by FTIR

XRD，SEM and TEM analyses. The results indicated that the graphite oxide (GO) and metal precursors could be reduced at the same time. The TEM images showed that the alloy particles were well dispersed at the carrier surface with the size less than 50 nm for the catalyst synthesized at 90 ℃. The catalysis performances for direct syntheses of DMC form CO

and CH

OH were investigated and the highest CH

OH conversion of 4.2% and the DMC selectivity of 84.5% could be achieved.

关键词

甲醇二氧化碳碳酸二甲酯氧化石墨低温还原

Keywords

CH3OHCO2DMCGraphite oxidehydrothermal reduction

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Related Author

LI Tingxun

LIANG Jierong

Related Institution

School of Engineering,Sun Yat-sen University

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