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Electronic modulation of transition metal phosphide via doping as efficient and pH-universal electrocatalysts for hydrogen evolution reaction

It is highly desirable to develop efficient and low-cost catalysts to minimize the overpotential of the hydrogen evolution reaction (HER) for large-scale hydrogen production from electrochemical water splitting. Doping a foreign element into the host catalysts has been proposed as an effective appro...

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Autores principales: Xiao, Xin, Tao, Leiming, Li, Man, Lv, Xiaowei, Huang, Dekang, Jiang, Xingxing, Pan, Haiping, Wang, Mingkui, Shen, Yan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5892309/
https://www.ncbi.nlm.nih.gov/pubmed/29675243
http://dx.doi.org/10.1039/c7sc04849a
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author Xiao, Xin
Tao, Leiming
Li, Man
Lv, Xiaowei
Huang, Dekang
Jiang, Xingxing
Pan, Haiping
Wang, Mingkui
Shen, Yan
author_facet Xiao, Xin
Tao, Leiming
Li, Man
Lv, Xiaowei
Huang, Dekang
Jiang, Xingxing
Pan, Haiping
Wang, Mingkui
Shen, Yan
author_sort Xiao, Xin
collection PubMed
description It is highly desirable to develop efficient and low-cost catalysts to minimize the overpotential of the hydrogen evolution reaction (HER) for large-scale hydrogen production from electrochemical water splitting. Doping a foreign element into the host catalysts has been proposed as an effective approach to optimize the electronic characteristics of catalysts and thus improve their electrocatalytic performance. Herein we, for the first time, report vanadium-doped CoP on self-supported conductive carbon cloth (V-CoP/CC) as a robust HER electrocatalyst, which achieves ultra-low overpotentials of 71, 123 and 47 mV to afford a current density of 10 mA cm(–2) in 1 M KOH, 1 M PBS and 0.5 M H(2)SO(4) media, respectively. Meanwhile, the V-CoP/CC electrode exhibits a small Tafel slope and superior long-term stability over a wide pH range. Detailed characterizations reveal that the modulation of the electronic structure contributes to the superior HER performance of V-CoP/CC. We believe that doping engineering opens up new opportunities to improve the HER catalytic activity of transition metal phosphides through regulating their physicochemical and electrochemical properties.
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spelling pubmed-58923092018-04-19 Electronic modulation of transition metal phosphide via doping as efficient and pH-universal electrocatalysts for hydrogen evolution reaction Xiao, Xin Tao, Leiming Li, Man Lv, Xiaowei Huang, Dekang Jiang, Xingxing Pan, Haiping Wang, Mingkui Shen, Yan Chem Sci Chemistry It is highly desirable to develop efficient and low-cost catalysts to minimize the overpotential of the hydrogen evolution reaction (HER) for large-scale hydrogen production from electrochemical water splitting. Doping a foreign element into the host catalysts has been proposed as an effective approach to optimize the electronic characteristics of catalysts and thus improve their electrocatalytic performance. Herein we, for the first time, report vanadium-doped CoP on self-supported conductive carbon cloth (V-CoP/CC) as a robust HER electrocatalyst, which achieves ultra-low overpotentials of 71, 123 and 47 mV to afford a current density of 10 mA cm(–2) in 1 M KOH, 1 M PBS and 0.5 M H(2)SO(4) media, respectively. Meanwhile, the V-CoP/CC electrode exhibits a small Tafel slope and superior long-term stability over a wide pH range. Detailed characterizations reveal that the modulation of the electronic structure contributes to the superior HER performance of V-CoP/CC. We believe that doping engineering opens up new opportunities to improve the HER catalytic activity of transition metal phosphides through regulating their physicochemical and electrochemical properties. Royal Society of Chemistry 2018-01-04 /pmc/articles/PMC5892309/ /pubmed/29675243 http://dx.doi.org/10.1039/c7sc04849a Text en This journal is © The Royal Society of Chemistry 2018 http://creativecommons.org/licenses/by/3.0/ This article is freely available. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0)
spellingShingle Chemistry
Xiao, Xin
Tao, Leiming
Li, Man
Lv, Xiaowei
Huang, Dekang
Jiang, Xingxing
Pan, Haiping
Wang, Mingkui
Shen, Yan
Electronic modulation of transition metal phosphide via doping as efficient and pH-universal electrocatalysts for hydrogen evolution reaction
title Electronic modulation of transition metal phosphide via doping as efficient and pH-universal electrocatalysts for hydrogen evolution reaction
title_full Electronic modulation of transition metal phosphide via doping as efficient and pH-universal electrocatalysts for hydrogen evolution reaction
title_fullStr Electronic modulation of transition metal phosphide via doping as efficient and pH-universal electrocatalysts for hydrogen evolution reaction
title_full_unstemmed Electronic modulation of transition metal phosphide via doping as efficient and pH-universal electrocatalysts for hydrogen evolution reaction
title_short Electronic modulation of transition metal phosphide via doping as efficient and pH-universal electrocatalysts for hydrogen evolution reaction
title_sort electronic modulation of transition metal phosphide via doping as efficient and ph-universal electrocatalysts for hydrogen evolution reaction
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5892309/
https://www.ncbi.nlm.nih.gov/pubmed/29675243
http://dx.doi.org/10.1039/c7sc04849a
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