Controllable synthesis of α-MoC1-x and β-Mo2C nanowires for highly selective CO2 reduction to CO

Jiajian Gao; Yue Wu; Chunmiao Jia; Ziyi Zhong; Feng Gao; Yanhui Yang; Bin Liu

doi:10.1016/j.catcom.2016.06.026

Controllable synthesis of α-MoC_1-x and β-Mo₂C nanowires for highly selective CO₂ reduction to CO

Jiajian Gao, Yue Wu, Chunmiao Jia, Ziyi Zhong, Feng Gao, Yanhui Yang, Bin Liu

Research output: Contribution to journal › Article › peer-review

79 Scopus citations

Abstract

Transition metal carbides are attractive catalysts because of their similar properties to precious metals. Here, we report the controllable synthesis of α-MoC_1-x and β-Mo₂C nanowires as highly active and selective catalysts for CO₂ reduction to CO (CO₂ + H₂ → CO + H₂O, reverse water-gas shift reaction, RWGS). CO₂ conversion of > 60% together with nearly 100% CO selectivity was achieved at 600 °C, H₂:CO₂ molar ratio of 4:1, and space velocity of 36,000 mL g^− 1 h^− 1. A formate decomposition mechanism for the RWGS reaction was proposed based on the in-situ DRIFTS results.

Original language	English
Pages (from-to)	147-150
Number of pages	4
Journal	Catalysis Communications
Volume	84
DOIs	https://doi.org/10.1016/j.catcom.2016.06.026
State	Published - 5 Sep 2016
Externally published	Yes

Keywords

CO reduction
Molybdenum carbide
Reaction mechanism
Reverse water gas shift reaction

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10.1016/j.catcom.2016.06.026

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title = "Controllable synthesis of α-MoC1-x and β-Mo2C nanowires for highly selective CO2 reduction to CO",

abstract = "Transition metal carbides are attractive catalysts because of their similar properties to precious metals. Here, we report the controllable synthesis of α-MoC1-x and β-Mo2C nanowires as highly active and selective catalysts for CO2 reduction to CO (CO2 + H2 → CO + H2O, reverse water-gas shift reaction, RWGS). CO2 conversion of > 60% together with nearly 100% CO selectivity was achieved at 600 °C, H2:CO2 molar ratio of 4:1, and space velocity of 36,000 mL g− 1 h− 1. A formate decomposition mechanism for the RWGS reaction was proposed based on the in-situ DRIFTS results.",

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author = "Jiajian Gao and Yue Wu and Chunmiao Jia and Ziyi Zhong and Feng Gao and Yanhui Yang and Bin Liu",

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year = "2016",

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doi = "10.1016/j.catcom.2016.06.026",

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T1 - Controllable synthesis of α-MoC1-x and β-Mo2C nanowires for highly selective CO2 reduction to CO

AU - Gao, Jiajian

AU - Wu, Yue

AU - Jia, Chunmiao

AU - Zhong, Ziyi

AU - Gao, Feng

AU - Yang, Yanhui

AU - Liu, Bin

PY - 2016/9/5

Y1 - 2016/9/5

N2 - Transition metal carbides are attractive catalysts because of their similar properties to precious metals. Here, we report the controllable synthesis of α-MoC1-x and β-Mo2C nanowires as highly active and selective catalysts for CO2 reduction to CO (CO2 + H2 → CO + H2O, reverse water-gas shift reaction, RWGS). CO2 conversion of > 60% together with nearly 100% CO selectivity was achieved at 600 °C, H2:CO2 molar ratio of 4:1, and space velocity of 36,000 mL g− 1 h− 1. A formate decomposition mechanism for the RWGS reaction was proposed based on the in-situ DRIFTS results.

AB - Transition metal carbides are attractive catalysts because of their similar properties to precious metals. Here, we report the controllable synthesis of α-MoC1-x and β-Mo2C nanowires as highly active and selective catalysts for CO2 reduction to CO (CO2 + H2 → CO + H2O, reverse water-gas shift reaction, RWGS). CO2 conversion of > 60% together with nearly 100% CO selectivity was achieved at 600 °C, H2:CO2 molar ratio of 4:1, and space velocity of 36,000 mL g− 1 h− 1. A formate decomposition mechanism for the RWGS reaction was proposed based on the in-situ DRIFTS results.

KW - CO reduction

KW - Molybdenum carbide

KW - Reaction mechanism

KW - Reverse water gas shift reaction

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U2 - 10.1016/j.catcom.2016.06.026

DO - 10.1016/j.catcom.2016.06.026

M3 - 文章

AN - SCOPUS:84977083506

SN - 1566-7367

VL - 84

SP - 147

EP - 150

JO - Catalysis Communications

JF - Catalysis Communications

ER -

Controllable synthesis of α-MoC_1-x and β-Mo₂C nanowires for highly selective CO₂ reduction to CO

Abstract

Keywords

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