Bifunctional atomically dispersed ruthenium electrocatalysts for efficient bipolar membrane water electrolysis
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.22/20796 |
Resumo: | Atomically dispersed catalysts (ADCs) have recently drawn considerable interest for use in water electrolysis to produce hydrogen, because they allow for maximal utilization of metal species, particularly the expensive and scarce platinum group metals. Herein, we report the electrocatalytic performance of atomically dispersed ruthenium catalysts (Ru ADCs) with ultralow Ru loading (0.2 wt%). The as-obtained Ru ADCs (Ru (0.2)-NC) are active for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), which only require a low overpotential (η) of 47.1 and 72.8 mV to deliver 10 mA cm−2 for HER in 0.5 M H2SO4 and 1.0 M KOH, respectively, and of 300 mV for OER in 1.0 M KOH, showing favorable bifunctionality. Density functional theory (DFT) calculations reveal that the Ru–N bonding plays an important role in lowering the energy barrier of the reactions, boosting the HER and OER activities. Furthermore, the bipolar membrane (BPM) water electrolysis using the bifunctional Ru (0.2)-NC as both HER and OER catalysts can afford 10 mA cm−2 under a low cell voltage of only 0.89 V, and does not show any performance decay upon 100 h continuous operation, showing great potential for energy-saving hydrogen production. |
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Bifunctional atomically dispersed ruthenium electrocatalysts for efficient bipolar membrane water electrolysisAtomically dispersed catalysts (ADCs) have recently drawn considerable interest for use in water electrolysis to produce hydrogen, because they allow for maximal utilization of metal species, particularly the expensive and scarce platinum group metals. Herein, we report the electrocatalytic performance of atomically dispersed ruthenium catalysts (Ru ADCs) with ultralow Ru loading (0.2 wt%). The as-obtained Ru ADCs (Ru (0.2)-NC) are active for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), which only require a low overpotential (η) of 47.1 and 72.8 mV to deliver 10 mA cm−2 for HER in 0.5 M H2SO4 and 1.0 M KOH, respectively, and of 300 mV for OER in 1.0 M KOH, showing favorable bifunctionality. Density functional theory (DFT) calculations reveal that the Ru–N bonding plays an important role in lowering the energy barrier of the reactions, boosting the HER and OER activities. Furthermore, the bipolar membrane (BPM) water electrolysis using the bifunctional Ru (0.2)-NC as both HER and OER catalysts can afford 10 mA cm−2 under a low cell voltage of only 0.89 V, and does not show any performance decay upon 100 h continuous operation, showing great potential for energy-saving hydrogen production.Repositório Científico do Instituto Politécnico do PortoYu, ZhipengSi, ChaoweiEscobar-Bedia, Francisco JavierLaGrow, Alec P.Xu, JunyuanSabater, Maria J.Amorim, IsildaAraujo, AnaSousa, Juliana P. S.Meng, LijianFaria, Joaquim LuisConcepcion, PatriciaLi, BoLiu, Lifeng2022-06-242031-01-01T00:00:00Z2022-06-24T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/20796eng10.1039/D2QI00892Kmetadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-13T13:16:20Zoai:recipp.ipp.pt:10400.22/20796Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:40:52.779966Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Bifunctional atomically dispersed ruthenium electrocatalysts for efficient bipolar membrane water electrolysis |
title |
Bifunctional atomically dispersed ruthenium electrocatalysts for efficient bipolar membrane water electrolysis |
spellingShingle |
Bifunctional atomically dispersed ruthenium electrocatalysts for efficient bipolar membrane water electrolysis Yu, Zhipeng |
title_short |
Bifunctional atomically dispersed ruthenium electrocatalysts for efficient bipolar membrane water electrolysis |
title_full |
Bifunctional atomically dispersed ruthenium electrocatalysts for efficient bipolar membrane water electrolysis |
title_fullStr |
Bifunctional atomically dispersed ruthenium electrocatalysts for efficient bipolar membrane water electrolysis |
title_full_unstemmed |
Bifunctional atomically dispersed ruthenium electrocatalysts for efficient bipolar membrane water electrolysis |
title_sort |
Bifunctional atomically dispersed ruthenium electrocatalysts for efficient bipolar membrane water electrolysis |
author |
Yu, Zhipeng |
author_facet |
Yu, Zhipeng Si, Chaowei Escobar-Bedia, Francisco Javier LaGrow, Alec P. Xu, Junyuan Sabater, Maria J. Amorim, Isilda Araujo, Ana Sousa, Juliana P. S. Meng, Lijian Faria, Joaquim Luis Concepcion, Patricia Li, Bo Liu, Lifeng |
author_role |
author |
author2 |
Si, Chaowei Escobar-Bedia, Francisco Javier LaGrow, Alec P. Xu, Junyuan Sabater, Maria J. Amorim, Isilda Araujo, Ana Sousa, Juliana P. S. Meng, Lijian Faria, Joaquim Luis Concepcion, Patricia Li, Bo Liu, Lifeng |
author2_role |
author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório Científico do Instituto Politécnico do Porto |
dc.contributor.author.fl_str_mv |
Yu, Zhipeng Si, Chaowei Escobar-Bedia, Francisco Javier LaGrow, Alec P. Xu, Junyuan Sabater, Maria J. Amorim, Isilda Araujo, Ana Sousa, Juliana P. S. Meng, Lijian Faria, Joaquim Luis Concepcion, Patricia Li, Bo Liu, Lifeng |
description |
Atomically dispersed catalysts (ADCs) have recently drawn considerable interest for use in water electrolysis to produce hydrogen, because they allow for maximal utilization of metal species, particularly the expensive and scarce platinum group metals. Herein, we report the electrocatalytic performance of atomically dispersed ruthenium catalysts (Ru ADCs) with ultralow Ru loading (0.2 wt%). The as-obtained Ru ADCs (Ru (0.2)-NC) are active for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), which only require a low overpotential (η) of 47.1 and 72.8 mV to deliver 10 mA cm−2 for HER in 0.5 M H2SO4 and 1.0 M KOH, respectively, and of 300 mV for OER in 1.0 M KOH, showing favorable bifunctionality. Density functional theory (DFT) calculations reveal that the Ru–N bonding plays an important role in lowering the energy barrier of the reactions, boosting the HER and OER activities. Furthermore, the bipolar membrane (BPM) water electrolysis using the bifunctional Ru (0.2)-NC as both HER and OER catalysts can afford 10 mA cm−2 under a low cell voltage of only 0.89 V, and does not show any performance decay upon 100 h continuous operation, showing great potential for energy-saving hydrogen production. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-06-24 2022-06-24T00:00:00Z 2031-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.22/20796 |
url |
http://hdl.handle.net/10400.22/20796 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1039/D2QI00892K |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799131496482603008 |