Unique copper and reduced graphene oxide nanocomposite toward the efficient electrochemical reduction of carbon dioxide

Abstract The electrochemical reduction of CO2 to useful chemicals and fuels has garnered a keen and broad interest. Herein, we report a unique nanocomposite consisting of Cu nanoparticles (NPs) and reduced graphene oxide (rGO) supported on a Cu substrate with a high catalytic activity for CO2 reduct...

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Autores principales:	M. Nur Hossain, Jiali Wen, Aicheng Chen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d3abf4d5ce774f35a472d04c1a4cb055
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spelling	oai:doaj.org-article:d3abf4d5ce774f35a472d04c1a4cb0552021-12-02T15:05:20ZUnique copper and reduced graphene oxide nanocomposite toward the efficient electrochemical reduction of carbon dioxide10.1038/s41598-017-03601-32045-2322https://doaj.org/article/d3abf4d5ce774f35a472d04c1a4cb0552017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03601-3https://doaj.org/toc/2045-2322Abstract The electrochemical reduction of CO2 to useful chemicals and fuels has garnered a keen and broad interest. Herein, we report a unique nanocomposite consisting of Cu nanoparticles (NPs) and reduced graphene oxide (rGO) supported on a Cu substrate with a high catalytic activity for CO2 reduction. The nanocomposite was optimized in terms of the composition of Cu NPs and rGO as well as the overall amount. A gas chromatograph was employed to analyze the gaseous products, whereas a chemical oxygen demand (COD) method was proposed and utilized to quantify the overall liquid products. The optimized nanocomposite could effectively reduce CO2 to CO, HCOOH and CH4 with a Faradaic efficiency (FE) of 76.6% at −0.4 V (vs. RHE) in a CO2 saturated NaHCO3 solution. The remarkable catalytic activity, high FE, and excellent stability make this Cu-rGO nanocomposite promising for the electrochemical reduction of CO2 to value-added products to address the pressing environmental and energy challenges.M. Nur HossainJiali WenAicheng ChenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q M. Nur Hossain Jiali Wen Aicheng Chen Unique copper and reduced graphene oxide nanocomposite toward the efficient electrochemical reduction of carbon dioxide
description	Abstract The electrochemical reduction of CO2 to useful chemicals and fuels has garnered a keen and broad interest. Herein, we report a unique nanocomposite consisting of Cu nanoparticles (NPs) and reduced graphene oxide (rGO) supported on a Cu substrate with a high catalytic activity for CO2 reduction. The nanocomposite was optimized in terms of the composition of Cu NPs and rGO as well as the overall amount. A gas chromatograph was employed to analyze the gaseous products, whereas a chemical oxygen demand (COD) method was proposed and utilized to quantify the overall liquid products. The optimized nanocomposite could effectively reduce CO2 to CO, HCOOH and CH4 with a Faradaic efficiency (FE) of 76.6% at −0.4 V (vs. RHE) in a CO2 saturated NaHCO3 solution. The remarkable catalytic activity, high FE, and excellent stability make this Cu-rGO nanocomposite promising for the electrochemical reduction of CO2 to value-added products to address the pressing environmental and energy challenges.
format	article
author	M. Nur Hossain Jiali Wen Aicheng Chen
author_facet	M. Nur Hossain Jiali Wen Aicheng Chen
author_sort	M. Nur Hossain
title	Unique copper and reduced graphene oxide nanocomposite toward the efficient electrochemical reduction of carbon dioxide
title_short	Unique copper and reduced graphene oxide nanocomposite toward the efficient electrochemical reduction of carbon dioxide
title_full	Unique copper and reduced graphene oxide nanocomposite toward the efficient electrochemical reduction of carbon dioxide
title_fullStr	Unique copper and reduced graphene oxide nanocomposite toward the efficient electrochemical reduction of carbon dioxide
title_full_unstemmed	Unique copper and reduced graphene oxide nanocomposite toward the efficient electrochemical reduction of carbon dioxide
title_sort	unique copper and reduced graphene oxide nanocomposite toward the efficient electrochemical reduction of carbon dioxide
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d3abf4d5ce774f35a472d04c1a4cb055
work_keys_str_mv	AT mnurhossain uniquecopperandreducedgrapheneoxidenanocompositetowardtheefficientelectrochemicalreductionofcarbondioxide AT jialiwen uniquecopperandreducedgrapheneoxidenanocompositetowardtheefficientelectrochemicalreductionofcarbondioxide AT aichengchen uniquecopperandreducedgrapheneoxidenanocompositetowardtheefficientelectrochemicalreductionofcarbondioxide
_version_	1718388858959167488

Unique copper and reduced graphene oxide nanocomposite toward the efficient electrochemical reduction of carbon dioxide

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