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Salt-Templated Nanoarchitectonics of CoSe(2)-NC Nanosheets as an Efficient Bifunctional Oxygen Electrocatalyst for Water Splitting
Recently, the extensive research of efficient bifunctional electrocatalysts (oxygen evolution reaction (OER) and hydrogen evolution reaction (HER)) on water splitting has drawn increasing attention. Herein, a salt-template strategy is prepared to synthesize nitrogen-doped carbon nanosheets encapsula...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9099664/ https://www.ncbi.nlm.nih.gov/pubmed/35563630 http://dx.doi.org/10.3390/ijms23095239 |
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author | Cao, Hong Li, Hailong Liu, Linhao Xue, Kangning Niu, Xinkai Hou, Juan Chen, Long |
author_facet | Cao, Hong Li, Hailong Liu, Linhao Xue, Kangning Niu, Xinkai Hou, Juan Chen, Long |
author_sort | Cao, Hong |
collection | PubMed |
description | Recently, the extensive research of efficient bifunctional electrocatalysts (oxygen evolution reaction (OER) and hydrogen evolution reaction (HER)) on water splitting has drawn increasing attention. Herein, a salt-template strategy is prepared to synthesize nitrogen-doped carbon nanosheets encapsulated with dispersed CoSe(2) nanoparticles (CoSe(2)-NC NSs), while the thickness of CoSe(2)-NC NSs is only about 3.6 nm. Profiting from the ultrathin morphology, large surface area, and promising electrical conductivity, the CoSe(2)-NC NSs exhibited excellent electrocatalytic of 10 mA·cm(−2) current density at small overpotentials of 247 mV for OER and 75 mV for HER. Not only does the nitrogen-doped carbon matrix effectively avoid self-aggregation of CoSe(2) nanoparticles, but it also prevents the corrosion of CoSe(2) from electrolytes and shows favorable durability after long-term stability tests. Furthermore, an overall water-splitting system delivers a current density of 10 mA·cm(−2) at a voltage of 1.54 V with resultants being both the cathode and anode catalyst in alkaline solutions. This work provides a new way to synthesize efficient and nonprecious bifunctional electrocatalysts for water splitting. |
format | Online Article Text |
id | pubmed-9099664 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-90996642022-05-14 Salt-Templated Nanoarchitectonics of CoSe(2)-NC Nanosheets as an Efficient Bifunctional Oxygen Electrocatalyst for Water Splitting Cao, Hong Li, Hailong Liu, Linhao Xue, Kangning Niu, Xinkai Hou, Juan Chen, Long Int J Mol Sci Article Recently, the extensive research of efficient bifunctional electrocatalysts (oxygen evolution reaction (OER) and hydrogen evolution reaction (HER)) on water splitting has drawn increasing attention. Herein, a salt-template strategy is prepared to synthesize nitrogen-doped carbon nanosheets encapsulated with dispersed CoSe(2) nanoparticles (CoSe(2)-NC NSs), while the thickness of CoSe(2)-NC NSs is only about 3.6 nm. Profiting from the ultrathin morphology, large surface area, and promising electrical conductivity, the CoSe(2)-NC NSs exhibited excellent electrocatalytic of 10 mA·cm(−2) current density at small overpotentials of 247 mV for OER and 75 mV for HER. Not only does the nitrogen-doped carbon matrix effectively avoid self-aggregation of CoSe(2) nanoparticles, but it also prevents the corrosion of CoSe(2) from electrolytes and shows favorable durability after long-term stability tests. Furthermore, an overall water-splitting system delivers a current density of 10 mA·cm(−2) at a voltage of 1.54 V with resultants being both the cathode and anode catalyst in alkaline solutions. This work provides a new way to synthesize efficient and nonprecious bifunctional electrocatalysts for water splitting. MDPI 2022-05-07 /pmc/articles/PMC9099664/ /pubmed/35563630 http://dx.doi.org/10.3390/ijms23095239 Text en © 2022 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 Cao, Hong Li, Hailong Liu, Linhao Xue, Kangning Niu, Xinkai Hou, Juan Chen, Long Salt-Templated Nanoarchitectonics of CoSe(2)-NC Nanosheets as an Efficient Bifunctional Oxygen Electrocatalyst for Water Splitting |
title | Salt-Templated Nanoarchitectonics of CoSe(2)-NC Nanosheets as an Efficient Bifunctional Oxygen Electrocatalyst for Water Splitting |
title_full | Salt-Templated Nanoarchitectonics of CoSe(2)-NC Nanosheets as an Efficient Bifunctional Oxygen Electrocatalyst for Water Splitting |
title_fullStr | Salt-Templated Nanoarchitectonics of CoSe(2)-NC Nanosheets as an Efficient Bifunctional Oxygen Electrocatalyst for Water Splitting |
title_full_unstemmed | Salt-Templated Nanoarchitectonics of CoSe(2)-NC Nanosheets as an Efficient Bifunctional Oxygen Electrocatalyst for Water Splitting |
title_short | Salt-Templated Nanoarchitectonics of CoSe(2)-NC Nanosheets as an Efficient Bifunctional Oxygen Electrocatalyst for Water Splitting |
title_sort | salt-templated nanoarchitectonics of cose(2)-nc nanosheets as an efficient bifunctional oxygen electrocatalyst for water splitting |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9099664/ https://www.ncbi.nlm.nih.gov/pubmed/35563630 http://dx.doi.org/10.3390/ijms23095239 |
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