Cargando…

Multifunctional Dicyandiamide Blowing-Induced Formation of Electrocatalysts for the Hydrogen Evolution Reaction

[Image: see text] The development of cost-efficient, highly active, and stable electrocatalysts toward hydrogen evolution reaction (HER) is vital for energy conversion and clean hydrogen production. Herein, the novel electrocatalyst, porous carbon-coated Ni/β-Mo(2)C (Ni/β-Mo(2)C@PC), possesses favor...

Descripción completa

Detalles Bibliográficos
Autores principales: Zheng, Haiyan, Li, Xiao, Xu, Na, Wang, Xinlong, Sun, Chunyi, Su, Zhongmin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6649046/
https://www.ncbi.nlm.nih.gov/pubmed/31460128
http://dx.doi.org/10.1021/acsomega.9b00844
_version_ 1783437984893239296
author Zheng, Haiyan
Li, Xiao
Xu, Na
Wang, Xinlong
Sun, Chunyi
Su, Zhongmin
author_facet Zheng, Haiyan
Li, Xiao
Xu, Na
Wang, Xinlong
Sun, Chunyi
Su, Zhongmin
author_sort Zheng, Haiyan
collection PubMed
description [Image: see text] The development of cost-efficient, highly active, and stable electrocatalysts toward hydrogen evolution reaction (HER) is vital for energy conversion and clean hydrogen production. Herein, the novel electrocatalyst, porous carbon-coated Ni/β-Mo(2)C (Ni/β-Mo(2)C@PC), possesses favorable hydrogen production performance and stability in a wide range of pH via a facile dicyandiamide-blowing and one-step synthesis method. The resultant Ni/β-Mo(2)C@PC displays pleasurable HER performance with low overpotentials of 123, 155, and 179 mV at 10 mA cm(–2) in 1 M KOH, 0.5 M H(2)SO(4), and 1 M phosphate buffer solution (PBS), respectively. Furthermore, Ni/β-Mo(2)C@PC retains high durability with quite little decay after 24 h stability test, suggesting the excellent activity and stability of Ni/β-Mo(2)C@PC served as HER electrocatalysts. Otherwise, it is advantageous compared with Ni@PC, Mo(2)C@PC, and most other nonprecious metal electrocatalysts. Benefiting from the synergistic effect of the two popular active species, uniform distribution, and porous carbon coating, these porous nanoelectrocatalysts showcase satisfactory electrocatalytic activity, improving the charge transfer and kinetics during the reaction. This work possesses significant universality, which can be applicable to the synthesis of diverse nanostructured noble metal-free catalysts.
format Online
Article
Text
id pubmed-6649046
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher American Chemical Society
record_format MEDLINE/PubMed
spelling pubmed-66490462019-08-27 Multifunctional Dicyandiamide Blowing-Induced Formation of Electrocatalysts for the Hydrogen Evolution Reaction Zheng, Haiyan Li, Xiao Xu, Na Wang, Xinlong Sun, Chunyi Su, Zhongmin ACS Omega [Image: see text] The development of cost-efficient, highly active, and stable electrocatalysts toward hydrogen evolution reaction (HER) is vital for energy conversion and clean hydrogen production. Herein, the novel electrocatalyst, porous carbon-coated Ni/β-Mo(2)C (Ni/β-Mo(2)C@PC), possesses favorable hydrogen production performance and stability in a wide range of pH via a facile dicyandiamide-blowing and one-step synthesis method. The resultant Ni/β-Mo(2)C@PC displays pleasurable HER performance with low overpotentials of 123, 155, and 179 mV at 10 mA cm(–2) in 1 M KOH, 0.5 M H(2)SO(4), and 1 M phosphate buffer solution (PBS), respectively. Furthermore, Ni/β-Mo(2)C@PC retains high durability with quite little decay after 24 h stability test, suggesting the excellent activity and stability of Ni/β-Mo(2)C@PC served as HER electrocatalysts. Otherwise, it is advantageous compared with Ni@PC, Mo(2)C@PC, and most other nonprecious metal electrocatalysts. Benefiting from the synergistic effect of the two popular active species, uniform distribution, and porous carbon coating, these porous nanoelectrocatalysts showcase satisfactory electrocatalytic activity, improving the charge transfer and kinetics during the reaction. This work possesses significant universality, which can be applicable to the synthesis of diverse nanostructured noble metal-free catalysts. American Chemical Society 2019-06-14 /pmc/articles/PMC6649046/ /pubmed/31460128 http://dx.doi.org/10.1021/acsomega.9b00844 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Zheng, Haiyan
Li, Xiao
Xu, Na
Wang, Xinlong
Sun, Chunyi
Su, Zhongmin
Multifunctional Dicyandiamide Blowing-Induced Formation of Electrocatalysts for the Hydrogen Evolution Reaction
title Multifunctional Dicyandiamide Blowing-Induced Formation of Electrocatalysts for the Hydrogen Evolution Reaction
title_full Multifunctional Dicyandiamide Blowing-Induced Formation of Electrocatalysts for the Hydrogen Evolution Reaction
title_fullStr Multifunctional Dicyandiamide Blowing-Induced Formation of Electrocatalysts for the Hydrogen Evolution Reaction
title_full_unstemmed Multifunctional Dicyandiamide Blowing-Induced Formation of Electrocatalysts for the Hydrogen Evolution Reaction
title_short Multifunctional Dicyandiamide Blowing-Induced Formation of Electrocatalysts for the Hydrogen Evolution Reaction
title_sort multifunctional dicyandiamide blowing-induced formation of electrocatalysts for the hydrogen evolution reaction
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6649046/
https://www.ncbi.nlm.nih.gov/pubmed/31460128
http://dx.doi.org/10.1021/acsomega.9b00844
work_keys_str_mv AT zhenghaiyan multifunctionaldicyandiamideblowinginducedformationofelectrocatalystsforthehydrogenevolutionreaction
AT lixiao multifunctionaldicyandiamideblowinginducedformationofelectrocatalystsforthehydrogenevolutionreaction
AT xuna multifunctionaldicyandiamideblowinginducedformationofelectrocatalystsforthehydrogenevolutionreaction
AT wangxinlong multifunctionaldicyandiamideblowinginducedformationofelectrocatalystsforthehydrogenevolutionreaction
AT sunchunyi multifunctionaldicyandiamideblowinginducedformationofelectrocatalystsforthehydrogenevolutionreaction
AT suzhongmin multifunctionaldicyandiamideblowinginducedformationofelectrocatalystsforthehydrogenevolutionreaction