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Facile Electrochemical Synthesis of Bifunctional Needle-like Co-P Nanoarray for Efficient Overall Water Splitting

The development of low-cost and high-performance bifunctional electrocatalysts for overall water splitting is still challenging. Herein, we employed a facile electrodeposition method to prepare bifunctional cobalt phosphide for overall water splitting. The needle-like cobalt phosphide (Co-P-1) nanoa...

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Autores principales: He, Xiong, Cai, Jiayang, Zhou, Jie, Chen, Qiyi, Zhong, Qijun, Liu, Jinghua, Sun, Zijun, Qu, Dezhi, Li, Yudong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10459374/
https://www.ncbi.nlm.nih.gov/pubmed/37630354
http://dx.doi.org/10.3390/molecules28166101
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author He, Xiong
Cai, Jiayang
Zhou, Jie
Chen, Qiyi
Zhong, Qijun
Liu, Jinghua
Sun, Zijun
Qu, Dezhi
Li, Yudong
author_facet He, Xiong
Cai, Jiayang
Zhou, Jie
Chen, Qiyi
Zhong, Qijun
Liu, Jinghua
Sun, Zijun
Qu, Dezhi
Li, Yudong
author_sort He, Xiong
collection PubMed
description The development of low-cost and high-performance bifunctional electrocatalysts for overall water splitting is still challenging. Herein, we employed a facile electrodeposition method to prepare bifunctional cobalt phosphide for overall water splitting. The needle-like cobalt phosphide (Co-P-1) nanoarray is uniformly distributed on nickel foam. Co-P-1 exhibits excellent electrocatalytic activity for hydrogen evolution reaction (HER, 85 mV at 10 mA/cm(2), 60 mV/dec) and oxygen evolution reaction (OER, 294 mV at 50 mA/cm(2), 60 mV/dec). The cell-voltage of 1.60 V is found to achieve the current density of 10 mA/cm(2) for overall water splitting in the two-electrode system, comparable to that of previously reported Pt/C/NF||RuO(2)/NF. The excellent electrocatalytic performance can be attributed to the needle-like structure with more active sites, accelerated charge transfer and evolved bubbles’ release. This work can provide new approach to the development of a bifunctional electrocatalyst for overall water splitting.
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spelling pubmed-104593742023-08-27 Facile Electrochemical Synthesis of Bifunctional Needle-like Co-P Nanoarray for Efficient Overall Water Splitting He, Xiong Cai, Jiayang Zhou, Jie Chen, Qiyi Zhong, Qijun Liu, Jinghua Sun, Zijun Qu, Dezhi Li, Yudong Molecules Article The development of low-cost and high-performance bifunctional electrocatalysts for overall water splitting is still challenging. Herein, we employed a facile electrodeposition method to prepare bifunctional cobalt phosphide for overall water splitting. The needle-like cobalt phosphide (Co-P-1) nanoarray is uniformly distributed on nickel foam. Co-P-1 exhibits excellent electrocatalytic activity for hydrogen evolution reaction (HER, 85 mV at 10 mA/cm(2), 60 mV/dec) and oxygen evolution reaction (OER, 294 mV at 50 mA/cm(2), 60 mV/dec). The cell-voltage of 1.60 V is found to achieve the current density of 10 mA/cm(2) for overall water splitting in the two-electrode system, comparable to that of previously reported Pt/C/NF||RuO(2)/NF. The excellent electrocatalytic performance can be attributed to the needle-like structure with more active sites, accelerated charge transfer and evolved bubbles’ release. This work can provide new approach to the development of a bifunctional electrocatalyst for overall water splitting. MDPI 2023-08-17 /pmc/articles/PMC10459374/ /pubmed/37630354 http://dx.doi.org/10.3390/molecules28166101 Text en © 2023 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
He, Xiong
Cai, Jiayang
Zhou, Jie
Chen, Qiyi
Zhong, Qijun
Liu, Jinghua
Sun, Zijun
Qu, Dezhi
Li, Yudong
Facile Electrochemical Synthesis of Bifunctional Needle-like Co-P Nanoarray for Efficient Overall Water Splitting
title Facile Electrochemical Synthesis of Bifunctional Needle-like Co-P Nanoarray for Efficient Overall Water Splitting
title_full Facile Electrochemical Synthesis of Bifunctional Needle-like Co-P Nanoarray for Efficient Overall Water Splitting
title_fullStr Facile Electrochemical Synthesis of Bifunctional Needle-like Co-P Nanoarray for Efficient Overall Water Splitting
title_full_unstemmed Facile Electrochemical Synthesis of Bifunctional Needle-like Co-P Nanoarray for Efficient Overall Water Splitting
title_short Facile Electrochemical Synthesis of Bifunctional Needle-like Co-P Nanoarray for Efficient Overall Water Splitting
title_sort facile electrochemical synthesis of bifunctional needle-like co-p nanoarray for efficient overall water splitting
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10459374/
https://www.ncbi.nlm.nih.gov/pubmed/37630354
http://dx.doi.org/10.3390/molecules28166101
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