Direct Synthesis of Dimethyl Carbonate from CO2 and CH3OH Using 0.4nm Molecular Sieve Supported Cu-Ni Bimetal Catalyst*

陈惠玲; 王栓紧; 肖敏; 韩冬梅; 卢一新; 孟跃中

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Direct Synthesis of Dimethyl Carbonate from CO₂ and CH₃OH Using 0.4nm Molecular Sieve Supported Cu-Ni Bimetal Catalyst^*

Updated：2026-01-06

- Direct Synthesis of Dimethyl Carbonate from CO₂ and CH₃OH Using 0.4nm Molecular Sieve Supported Cu-Ni Bimetal Catalyst^*
- Chinese Journal of Chemical Engineering Vol. 20, Issue 5, Pages: 906-913(2012)
- Affiliations：
  
  1. The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province
  2. State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University,Guangzhou,China,510275
  3. Department of Chemistry & Medicinal Chemistry Program, Office of Life Sciences, National University of Singapore, 3 Science Drive, Singapore 117543, Republic of Singapore
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2012
- Accepted：
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摘要

Abstract

The 0.4 nm molecular sieve supported Cu-Ni bimetal catalysts for direct synthesis of dimethyl carbonate (DMC) from CO

and CH

OH were prepared and investigated. The synthesized catalysts were fully characterized by BET

XRD (X-ray diffraction)

TPR (temperature programmed reduction)

IR (infra-red adsorption)

-TPD (temperature programmed desorption) and CO

-TPD (temperature programmed desorption) techniques. The results showed that the surface area of catalysts decreased with increasing metal content

and the metals as well as Cu-Ni alloy co-existed on the reduced catalyst surface. There existed interaction between metal and carrier

and moreover

metal particles affected obviously the acidity and basicity of carrier. The large amount of basic sites facilitated the activation of methanol to methoxyl species and their subsequent reaction with activated carbon dioxide. The catalysts were evaluated in a continuous tubular fixed-bed micro-gaseous reactor and the catalyst with bimetal loading of 20% (by mass) had best catalytic activities. Under the conditions of 393 K

1.1 MPa

5 h and gas space velocity of 510 h

-1

the selectivity and yield of DMC were higher than 86.0% and 5.0%

respectively.

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