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Electronic Structure and d-Band Center Control Engineering over Ni-Doped CoP(3) Nanowall Arrays for Boosting Hydrogen Production

To address the challenge of highly efficient water splitting into H(2), successful fabrication of novel porous three-dimensional Ni-doped CoP(3) nanowall arrays on carbon cloth was realized, resulting in an effective self-supported electrode for the electrocatalytic hydrogen-evolution reaction. The...

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Detalles Bibliográficos
Autores principales: Qi, Jing, Wu, Tianli, Xu, Mengyao, Zhou, Dan, Xiao, Zhubing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8233895/
https://www.ncbi.nlm.nih.gov/pubmed/34204471
http://dx.doi.org/10.3390/nano11061595
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author Qi, Jing
Wu, Tianli
Xu, Mengyao
Zhou, Dan
Xiao, Zhubing
author_facet Qi, Jing
Wu, Tianli
Xu, Mengyao
Zhou, Dan
Xiao, Zhubing
author_sort Qi, Jing
collection PubMed
description To address the challenge of highly efficient water splitting into H(2), successful fabrication of novel porous three-dimensional Ni-doped CoP(3) nanowall arrays on carbon cloth was realized, resulting in an effective self-supported electrode for the electrocatalytic hydrogen-evolution reaction. The synthesized samples exhibit rough, curly, and porous structures, which are beneficial for gaseous transfer and diffusion during the electrocatalytic process. As expected, the obtained Ni-doped CoP(3) nanowall arrays with a doping concentration of 7% exhibit the promoted electrocatalytic activity. The achieved overpotentials of 176 mV for the hydrogen-evolution reaction afford a current density of 100 mA cm(−2), which indicates that electrocatalytic performance can be dramatically enhanced via Ni doping. The Ni-doped CoP(3) electrocatalysts with increasing catalytic activity should have significant potential in the field of water splitting into H(2). This study also opens an avenue for further enhancement of electrocatalytic performance through tuning of electronic structure and d-band center by doping.
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spelling pubmed-82338952021-06-27 Electronic Structure and d-Band Center Control Engineering over Ni-Doped CoP(3) Nanowall Arrays for Boosting Hydrogen Production Qi, Jing Wu, Tianli Xu, Mengyao Zhou, Dan Xiao, Zhubing Nanomaterials (Basel) Article To address the challenge of highly efficient water splitting into H(2), successful fabrication of novel porous three-dimensional Ni-doped CoP(3) nanowall arrays on carbon cloth was realized, resulting in an effective self-supported electrode for the electrocatalytic hydrogen-evolution reaction. The synthesized samples exhibit rough, curly, and porous structures, which are beneficial for gaseous transfer and diffusion during the electrocatalytic process. As expected, the obtained Ni-doped CoP(3) nanowall arrays with a doping concentration of 7% exhibit the promoted electrocatalytic activity. The achieved overpotentials of 176 mV for the hydrogen-evolution reaction afford a current density of 100 mA cm(−2), which indicates that electrocatalytic performance can be dramatically enhanced via Ni doping. The Ni-doped CoP(3) electrocatalysts with increasing catalytic activity should have significant potential in the field of water splitting into H(2). This study also opens an avenue for further enhancement of electrocatalytic performance through tuning of electronic structure and d-band center by doping. MDPI 2021-06-17 /pmc/articles/PMC8233895/ /pubmed/34204471 http://dx.doi.org/10.3390/nano11061595 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Qi, Jing
Wu, Tianli
Xu, Mengyao
Zhou, Dan
Xiao, Zhubing
Electronic Structure and d-Band Center Control Engineering over Ni-Doped CoP(3) Nanowall Arrays for Boosting Hydrogen Production
title Electronic Structure and d-Band Center Control Engineering over Ni-Doped CoP(3) Nanowall Arrays for Boosting Hydrogen Production
title_full Electronic Structure and d-Band Center Control Engineering over Ni-Doped CoP(3) Nanowall Arrays for Boosting Hydrogen Production
title_fullStr Electronic Structure and d-Band Center Control Engineering over Ni-Doped CoP(3) Nanowall Arrays for Boosting Hydrogen Production
title_full_unstemmed Electronic Structure and d-Band Center Control Engineering over Ni-Doped CoP(3) Nanowall Arrays for Boosting Hydrogen Production
title_short Electronic Structure and d-Band Center Control Engineering over Ni-Doped CoP(3) Nanowall Arrays for Boosting Hydrogen Production
title_sort electronic structure and d-band center control engineering over ni-doped cop(3) nanowall arrays for boosting hydrogen production
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8233895/
https://www.ncbi.nlm.nih.gov/pubmed/34204471
http://dx.doi.org/10.3390/nano11061595
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