Citation: Meiling Shui, Chao Huang, Peiyu Ma, Wenjie Li, Qun He, Wenlong Wu, Yisheng Tan, Jun Bao. Accelerating C₂₊ alcohols synthesis from syngas by simultaneous optimizations of CO dissociation and chain growth over CuCo alloy catalyst[J]. Chinese Chemical Letters, ;2021, 32(7): 2203-2206. doi: 10.1016/j.cclet.2020.12.022 shu

Accelerating C₂₊ alcohols synthesis from syngas by simultaneous optimizations of CO dissociation and chain growth over CuCo alloy catalyst

Meiling Shui ^a ,
Chao Huang ^a ,
Peiyu Ma ^a ,
Wenjie Li ^a ,
Qun He ^a ,
Wenlong Wu ^b ,
Yisheng Tan ^c ,
Jun Bao ^{a, *,}

a.
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
b.
Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
c.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

baoj@ustc.edu.cn

Received Date: 13 September 2020
Revised Date: 12 November 2020
Accepted Date: 8 December 2020
Available Online: 16 December 2020

Figures(3)

With regard to the reaction of higher alcohol synthesis (HAS), the optimizations of activity and selectivity towards C₂₊ alcohol are restricted by the improper equilibrium in two different CO activation pathways and chain growth capacity. Herein, we find that delibrately controlling the compositions of catalysts is an effective strategy to achieve the equilibrium of CO activation pathways and promote the chain growth. As a result, the optimized Cu_0.25Co_0.75 alloy catalyst can achieve a large proportion of higher alcohol in alcohol products (C₂₊OH/MeOH = 4.40), together with high CO conversion of 71.27% and space-time-yield of 147.65 g kg⁻¹ h⁻¹. The mechanistic studies suggest that the good performance of Cu_0.25Co_0.75 catalyst is attributed to the synergistic effect between alloyed Cu and Co.
- CuCo alloy,
- Syngas,
- C₂₊ alcohol,
- CO activation,
- Synergistic effect
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沈阳化工大学材料科学与工程学院沈阳 110142

Accelerating C2+ alcohols synthesis from syngas by simultaneous optimizations of CO dissociation and chain growth over CuCo alloy catalyst

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通讯作者: 陈斌, bchen63@163.com

Accelerating C₂₊ alcohols synthesis from syngas by simultaneous optimizations of CO dissociation and chain growth over CuCo alloy catalyst