Ni2P nanocrystals embedded Ni-MOF nanosheets supported on nickel foam as bifunctional electrocatalyst for urea electrolysis

Abstract It’s highly desired but challenging to synthesize self-supporting nanohybrid made of conductive nanoparticles with metal organic framework (MOF) materials for the application in the electrochemical field. In this work, we report the preparation of Ni2P embedded Ni-MOF nanosheets supported o...

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Autores principales: Haitao Wang, Haiyan Zou, Yingying Liu, Zhenglong Liu, Wenshuang Sun, Kunyi Andrew Lin, Tielong Li, Shuangjiang Luo
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/ec8a780499fc47cd91a4451e6352dced
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spelling oai:doaj.org-article:ec8a780499fc47cd91a4451e6352dced2021-11-08T10:52:13ZNi2P nanocrystals embedded Ni-MOF nanosheets supported on nickel foam as bifunctional electrocatalyst for urea electrolysis10.1038/s41598-021-00776-82045-2322https://doaj.org/article/ec8a780499fc47cd91a4451e6352dced2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-00776-8https://doaj.org/toc/2045-2322Abstract It’s highly desired but challenging to synthesize self-supporting nanohybrid made of conductive nanoparticles with metal organic framework (MOF) materials for the application in the electrochemical field. In this work, we report the preparation of Ni2P embedded Ni-MOF nanosheets supported on nickel foam through partial phosphidation (Ni2P@Ni-MOF/NF). The self-supporting Ni2P@Ni-MOF/NF was directly tested as electrode for urea electrolysis. When served as anode for urea oxidation reaction (UOR), it only demands 1.41 V (vs RHE) to deliver a current of 100 mA cm−2. And the overpotential of Ni2P@Ni-MOF/NF to reach 10 mA cm−2 for hydrogen evolution reaction HER was only 66 mV, remarkably lower than Ni2P/NF (133 mV). The exceptional electrochemical performance was attributed to the unique structure of Ni2P@Ni-MOF and the well exposed surface of Ni2P. Furthermore, the Ni2P@Ni-MOF/NF demonstrated outstanding longevity for both HER and UOR. The electrolyzer constructed with Ni2P@Ni-MOF/NF as bifunctional electrode can attain a current density of 100 mA cm−2 at a cell voltage as low as 1.65 V. Our work provides new insights for prepare MOF based nanohydrid for electrochemical application.Haitao WangHaiyan ZouYingying LiuZhenglong LiuWenshuang SunKunyi Andrew LinTielong LiShuangjiang LuoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Haitao Wang
Haiyan Zou
Yingying Liu
Zhenglong Liu
Wenshuang Sun
Kunyi Andrew Lin
Tielong Li
Shuangjiang Luo
Ni2P nanocrystals embedded Ni-MOF nanosheets supported on nickel foam as bifunctional electrocatalyst for urea electrolysis
description Abstract It’s highly desired but challenging to synthesize self-supporting nanohybrid made of conductive nanoparticles with metal organic framework (MOF) materials for the application in the electrochemical field. In this work, we report the preparation of Ni2P embedded Ni-MOF nanosheets supported on nickel foam through partial phosphidation (Ni2P@Ni-MOF/NF). The self-supporting Ni2P@Ni-MOF/NF was directly tested as electrode for urea electrolysis. When served as anode for urea oxidation reaction (UOR), it only demands 1.41 V (vs RHE) to deliver a current of 100 mA cm−2. And the overpotential of Ni2P@Ni-MOF/NF to reach 10 mA cm−2 for hydrogen evolution reaction HER was only 66 mV, remarkably lower than Ni2P/NF (133 mV). The exceptional electrochemical performance was attributed to the unique structure of Ni2P@Ni-MOF and the well exposed surface of Ni2P. Furthermore, the Ni2P@Ni-MOF/NF demonstrated outstanding longevity for both HER and UOR. The electrolyzer constructed with Ni2P@Ni-MOF/NF as bifunctional electrode can attain a current density of 100 mA cm−2 at a cell voltage as low as 1.65 V. Our work provides new insights for prepare MOF based nanohydrid for electrochemical application.
format article
author Haitao Wang
Haiyan Zou
Yingying Liu
Zhenglong Liu
Wenshuang Sun
Kunyi Andrew Lin
Tielong Li
Shuangjiang Luo
author_facet Haitao Wang
Haiyan Zou
Yingying Liu
Zhenglong Liu
Wenshuang Sun
Kunyi Andrew Lin
Tielong Li
Shuangjiang Luo
author_sort Haitao Wang
title Ni2P nanocrystals embedded Ni-MOF nanosheets supported on nickel foam as bifunctional electrocatalyst for urea electrolysis
title_short Ni2P nanocrystals embedded Ni-MOF nanosheets supported on nickel foam as bifunctional electrocatalyst for urea electrolysis
title_full Ni2P nanocrystals embedded Ni-MOF nanosheets supported on nickel foam as bifunctional electrocatalyst for urea electrolysis
title_fullStr Ni2P nanocrystals embedded Ni-MOF nanosheets supported on nickel foam as bifunctional electrocatalyst for urea electrolysis
title_full_unstemmed Ni2P nanocrystals embedded Ni-MOF nanosheets supported on nickel foam as bifunctional electrocatalyst for urea electrolysis
title_sort ni2p nanocrystals embedded ni-mof nanosheets supported on nickel foam as bifunctional electrocatalyst for urea electrolysis
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/ec8a780499fc47cd91a4451e6352dced
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