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

The electrochemical reduction of CO(2) 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 CO(2) reduction....

Descripción completa

Detalles Bibliográficos
Autores principales: Hossain, M. Nur, Wen, Jiali, Chen, Aicheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5466611/
https://www.ncbi.nlm.nih.gov/pubmed/28600564
http://dx.doi.org/10.1038/s41598-017-03601-3
_version_ 1783243119303589888
author Hossain, M. Nur
Wen, Jiali
Chen, Aicheng
author_facet Hossain, M. Nur
Wen, Jiali
Chen, Aicheng
author_sort Hossain, M. Nur
collection PubMed
description The electrochemical reduction of CO(2) 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 CO(2) 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 CO(2) to CO, HCOOH and CH(4) with a Faradaic efficiency (FE) of 76.6% at −0.4 V (vs. RHE) in a CO(2) saturated NaHCO(3) solution. The remarkable catalytic activity, high FE, and excellent stability make this Cu-rGO nanocomposite promising for the electrochemical reduction of CO(2) to value-added products to address the pressing environmental and energy challenges.
format Online
Article
Text
id pubmed-5466611
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-54666112017-06-14 Unique copper and reduced graphene oxide nanocomposite toward the efficient electrochemical reduction of carbon dioxide Hossain, M. Nur Wen, Jiali Chen, Aicheng Sci Rep Article The electrochemical reduction of CO(2) 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 CO(2) 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 CO(2) to CO, HCOOH and CH(4) with a Faradaic efficiency (FE) of 76.6% at −0.4 V (vs. RHE) in a CO(2) saturated NaHCO(3) solution. The remarkable catalytic activity, high FE, and excellent stability make this Cu-rGO nanocomposite promising for the electrochemical reduction of CO(2) to value-added products to address the pressing environmental and energy challenges. Nature Publishing Group UK 2017-06-09 /pmc/articles/PMC5466611/ /pubmed/28600564 http://dx.doi.org/10.1038/s41598-017-03601-3 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Hossain, M. Nur
Wen, Jiali
Chen, Aicheng
Unique copper and reduced graphene oxide nanocomposite toward the efficient electrochemical reduction of carbon dioxide
title 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_short 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
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5466611/
https://www.ncbi.nlm.nih.gov/pubmed/28600564
http://dx.doi.org/10.1038/s41598-017-03601-3
work_keys_str_mv AT hossainmnur uniquecopperandreducedgrapheneoxidenanocompositetowardtheefficientelectrochemicalreductionofcarbondioxide
AT wenjiali uniquecopperandreducedgrapheneoxidenanocompositetowardtheefficientelectrochemicalreductionofcarbondioxide
AT chenaicheng uniquecopperandreducedgrapheneoxidenanocompositetowardtheefficientelectrochemicalreductionofcarbondioxide

Ejemplares similares