Cu2O-loaded gas diffusion electrodes for the continuous electrochemical reduction of CO2 to methanol

Gas-diffusion electrodes are prepared with commercial Cu2O and Cu2O–ZnO mixtures deposited onto carbon papers and evaluated for the continuous CO2 gas phase electroreduction in a filter-press electrochemical cell. The process mainly produced methanol, as well as small quantities of ethanol and n-pro...

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Detalhes bibliográficos
Autores: Albo Sánchez, Jonathan|||0000-0001-6781-5704, Irabien Gulías, Ángel|||0000-0002-2411-4163
Formato: artículo
Fecha de publicación:2016
País:España
Recursos:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/11176
Acesso em linha:http://hdl.handle.net/10902/11176
Access Level:acceso abierto
Palavra-chave:Electrochemical reduction
Carbon dioxide
Gas-diffusion electrode
Copper oxide
Methanol
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spelling Cu2O-loaded gas diffusion electrodes for the continuous electrochemical reduction of CO2 to methanolCu2O-based catalysts for the electrochemical reduction of CO2 at gas-diffusion electrodesAlbo Sánchez, Jonathan|||0000-0001-6781-5704Irabien Gulías, Ángel|||0000-0002-2411-4163Electrochemical reductionCarbon dioxideGas-diffusion electrodeCopper oxideMethanolGas-diffusion electrodes are prepared with commercial Cu2O and Cu2O–ZnO mixtures deposited onto carbon papers and evaluated for the continuous CO2 gas phase electroreduction in a filter-press electrochemical cell. The process mainly produced methanol, as well as small quantities of ethanol and n-propanol. The analysis includes the evaluation of key variables with effect in the electroreduction process: current density (j = 10–40 mA cm−2), electrolyte flow/area ratio (Qe/A = 1–3 ml min−1 cm−2) and CO2 gas flow/area ratio (Qg/A = 10–40 ml min−1 cm−2), using a 0.5 M KHCO3 aqueous solution. The maximum CO2 conversion efficiency to liquid-phase products was 54.8% and 31.4% for Cu2O and Cu2O/ZnO-based electrodes at an applied potential of −1.39 and −1.16 V vs. Ag/AgCl, respectively. Besides, the Cu2O/ZnO electrodes are expected to catalyze the CO2 electroreduction for over 20 h. These results may provide new insights into the application of gas diffusion electrodes to alleviate mass transfer limitations in electrochemical systems for the transformation of CO2 to alcohols.The authors gratefully acknowledge the financial support from the Spanish Ministry of Economy and Competitiveness (MINECO), under the projects CTQ2013-48280-C3-1-R, CTQ2014-55716- REDT and Juan de la Cierva program (JCI-2012-12073).ElsevierUniversidad de Cantabria20162016-11-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/11176Journal of Catalysis, 2016, 343, 232-239reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/111762026-06-02T12:39:31Z
dc.title.none.fl_str_mv Cu2O-loaded gas diffusion electrodes for the continuous electrochemical reduction of CO2 to methanol
Cu2O-based catalysts for the electrochemical reduction of CO2 at gas-diffusion electrodes
title Cu2O-loaded gas diffusion electrodes for the continuous electrochemical reduction of CO2 to methanol
spellingShingle Cu2O-loaded gas diffusion electrodes for the continuous electrochemical reduction of CO2 to methanol
Albo Sánchez, Jonathan|||0000-0001-6781-5704
Electrochemical reduction
Carbon dioxide
Gas-diffusion electrode
Copper oxide
Methanol
title_short Cu2O-loaded gas diffusion electrodes for the continuous electrochemical reduction of CO2 to methanol
title_full Cu2O-loaded gas diffusion electrodes for the continuous electrochemical reduction of CO2 to methanol
title_fullStr Cu2O-loaded gas diffusion electrodes for the continuous electrochemical reduction of CO2 to methanol
title_full_unstemmed Cu2O-loaded gas diffusion electrodes for the continuous electrochemical reduction of CO2 to methanol
title_sort Cu2O-loaded gas diffusion electrodes for the continuous electrochemical reduction of CO2 to methanol
dc.creator.none.fl_str_mv Albo Sánchez, Jonathan|||0000-0001-6781-5704
Irabien Gulías, Ángel|||0000-0002-2411-4163
author Albo Sánchez, Jonathan|||0000-0001-6781-5704
author_facet Albo Sánchez, Jonathan|||0000-0001-6781-5704
Irabien Gulías, Ángel|||0000-0002-2411-4163
author_role author
author2 Irabien Gulías, Ángel|||0000-0002-2411-4163
author2_role author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Electrochemical reduction
Carbon dioxide
Gas-diffusion electrode
Copper oxide
Methanol
topic Electrochemical reduction
Carbon dioxide
Gas-diffusion electrode
Copper oxide
Methanol
description Gas-diffusion electrodes are prepared with commercial Cu2O and Cu2O–ZnO mixtures deposited onto carbon papers and evaluated for the continuous CO2 gas phase electroreduction in a filter-press electrochemical cell. The process mainly produced methanol, as well as small quantities of ethanol and n-propanol. The analysis includes the evaluation of key variables with effect in the electroreduction process: current density (j = 10–40 mA cm−2), electrolyte flow/area ratio (Qe/A = 1–3 ml min−1 cm−2) and CO2 gas flow/area ratio (Qg/A = 10–40 ml min−1 cm−2), using a 0.5 M KHCO3 aqueous solution. The maximum CO2 conversion efficiency to liquid-phase products was 54.8% and 31.4% for Cu2O and Cu2O/ZnO-based electrodes at an applied potential of −1.39 and −1.16 V vs. Ag/AgCl, respectively. Besides, the Cu2O/ZnO electrodes are expected to catalyze the CO2 electroreduction for over 20 h. These results may provide new insights into the application of gas diffusion electrodes to alleviate mass transfer limitations in electrochemical systems for the transformation of CO2 to alcohols.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-11-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10902/11176
url http://hdl.handle.net/10902/11176
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Journal of Catalysis, 2016, 343, 232-239
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869418148589993984
score 15.300719

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