Highly Selective and Stable Reduction of CO2to CO by a Graphitic Carbon Nitride/Carbon Nanotube Composite Electrocatalyst

Xunyu Lu; Tze Hao Tan; Yun Hau Ng; Rose Amal

doi:10.1002/chem.201601674

Highly Selective and Stable Reduction of CO₂to CO by a Graphitic Carbon Nitride/Carbon Nanotube Composite Electrocatalyst

Xunyu Lu, Tze Hao Tan, Yun Hau Ng, Rose Amal^*

^*Corresponding author for this work

Chemical Engineering

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

136 Scopus citations

Abstract

A stable and selective electrocatalyst for CO₂reduction was fabricated by covalently attaching graphitic carbon nitride onto multiwall carbon nanotubes (g-C₃N₄/MWCNTs). The as-prepared composite is able to reduce CO₂exclusively to CO with a maximum Faraday efficiency of 60 %, and no decay in the catalytic activity was observed even after 50 h of reaction. The enhanced catalytic activity towards CO₂reduction is attributed to the formation of active carbon–nitrogen bonds, high specific surface area, and improved material conductivity of the g-C₃N₄/MWCNT composite.

Original language	English (US)
Pages (from-to)	11991-11996
Number of pages	6
Journal	Chemistry - A European Journal
Volume	22
Issue number	34
DOIs	https://doi.org/10.1002/chem.201601674
State	Published - Aug 16 2016

Keywords

active sites
COreduction
electrocatalysis
graphitic carbon nitride
multiwall carbon nanotubes

ASJC Scopus subject areas

Catalysis
Organic Chemistry

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10.1002/chem.201601674

Cite this

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title = "Highly Selective and Stable Reduction of CO2to CO by a Graphitic Carbon Nitride/Carbon Nanotube Composite Electrocatalyst",

abstract = "A stable and selective electrocatalyst for CO2reduction was fabricated by covalently attaching graphitic carbon nitride onto multiwall carbon nanotubes (g-C3N4/MWCNTs). The as-prepared composite is able to reduce CO2exclusively to CO with a maximum Faraday efficiency of 60 %, and no decay in the catalytic activity was observed even after 50 h of reaction. The enhanced catalytic activity towards CO2reduction is attributed to the formation of active carbon–nitrogen bonds, high specific surface area, and improved material conductivity of the g-C3N4/MWCNT composite.",

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AU - Amal, Rose

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AB - A stable and selective electrocatalyst for CO2reduction was fabricated by covalently attaching graphitic carbon nitride onto multiwall carbon nanotubes (g-C3N4/MWCNTs). The as-prepared composite is able to reduce CO2exclusively to CO with a maximum Faraday efficiency of 60 %, and no decay in the catalytic activity was observed even after 50 h of reaction. The enhanced catalytic activity towards CO2reduction is attributed to the formation of active carbon–nitrogen bonds, high specific surface area, and improved material conductivity of the g-C3N4/MWCNT composite.

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