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2D CoOOH Sheet-Encapsulated Ni(2)P into Tubular Arrays Realizing 1000 mA cm(−2)-Level-Current-Density Hydrogen Evolution Over 100 h in Neutral Water
Water electrolysis at high current density (1000 mA cm(−2) level) with excellent durability especially in neutral electrolyte is the pivotal issue for green hydrogen from experiment to industrialization. In addition to the high intrinsic activity determined by the electronic structure, electrocataly...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Singapore
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770877/ https://www.ncbi.nlm.nih.gov/pubmed/34138122 http://dx.doi.org/10.1007/s40820-020-00476-4 |
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author | Zhang, Shucong Wang, Wenbin Hu, Feilong Mi, Yan Wang, Shuzhe Liu, Youwen Ai, Xiaomeng Fang, Jiakun Li, Huiqiao Zhai, Tianyou |
author_facet | Zhang, Shucong Wang, Wenbin Hu, Feilong Mi, Yan Wang, Shuzhe Liu, Youwen Ai, Xiaomeng Fang, Jiakun Li, Huiqiao Zhai, Tianyou |
author_sort | Zhang, Shucong |
collection | PubMed |
description | Water electrolysis at high current density (1000 mA cm(−2) level) with excellent durability especially in neutral electrolyte is the pivotal issue for green hydrogen from experiment to industrialization. In addition to the high intrinsic activity determined by the electronic structure, electrocatalysts are also required to be capable of fast mass transfer (electrolyte recharge and bubble overflow) and high mechanical stability. Herein, the 2D CoOOH sheet-encapsulated Ni(2)P into tubular arrays electrocatalytic system was proposed and realized 1000 mA cm(−2)-level-current-density hydrogen evolution over 100 h in neutral water. In designed catalysts, 2D stack structure as an adaptive material can buffer the shock of electrolyte convection, hydrogen bubble rupture, and evolution through the release of stress, which insure the long cycle stability. Meanwhile, the rich porosity between stacked units contributed the good infiltration of electrolyte and slippage of hydrogen bubbles, guaranteeing electrolyte fast recharge and bubble evolution at the high-current catalysis. Beyond that, the electron structure modulation induced by interfacial charge transfer is also beneficial to enhance the intrinsic activity. Profoundly, the multiscale coordinated regulation will provide a guide to design high-efficiency industrial electrocatalysts. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40820-020-00476-4) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-7770877 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer Singapore |
record_format | MEDLINE/PubMed |
spelling | pubmed-77708772021-06-14 2D CoOOH Sheet-Encapsulated Ni(2)P into Tubular Arrays Realizing 1000 mA cm(−2)-Level-Current-Density Hydrogen Evolution Over 100 h in Neutral Water Zhang, Shucong Wang, Wenbin Hu, Feilong Mi, Yan Wang, Shuzhe Liu, Youwen Ai, Xiaomeng Fang, Jiakun Li, Huiqiao Zhai, Tianyou Nanomicro Lett Article Water electrolysis at high current density (1000 mA cm(−2) level) with excellent durability especially in neutral electrolyte is the pivotal issue for green hydrogen from experiment to industrialization. In addition to the high intrinsic activity determined by the electronic structure, electrocatalysts are also required to be capable of fast mass transfer (electrolyte recharge and bubble overflow) and high mechanical stability. Herein, the 2D CoOOH sheet-encapsulated Ni(2)P into tubular arrays electrocatalytic system was proposed and realized 1000 mA cm(−2)-level-current-density hydrogen evolution over 100 h in neutral water. In designed catalysts, 2D stack structure as an adaptive material can buffer the shock of electrolyte convection, hydrogen bubble rupture, and evolution through the release of stress, which insure the long cycle stability. Meanwhile, the rich porosity between stacked units contributed the good infiltration of electrolyte and slippage of hydrogen bubbles, guaranteeing electrolyte fast recharge and bubble evolution at the high-current catalysis. Beyond that, the electron structure modulation induced by interfacial charge transfer is also beneficial to enhance the intrinsic activity. Profoundly, the multiscale coordinated regulation will provide a guide to design high-efficiency industrial electrocatalysts. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40820-020-00476-4) contains supplementary material, which is available to authorized users. Springer Singapore 2020-07-02 /pmc/articles/PMC7770877/ /pubmed/34138122 http://dx.doi.org/10.1007/s40820-020-00476-4 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Zhang, Shucong Wang, Wenbin Hu, Feilong Mi, Yan Wang, Shuzhe Liu, Youwen Ai, Xiaomeng Fang, Jiakun Li, Huiqiao Zhai, Tianyou 2D CoOOH Sheet-Encapsulated Ni(2)P into Tubular Arrays Realizing 1000 mA cm(−2)-Level-Current-Density Hydrogen Evolution Over 100 h in Neutral Water |
title | 2D CoOOH Sheet-Encapsulated Ni(2)P into Tubular Arrays Realizing 1000 mA cm(−2)-Level-Current-Density Hydrogen Evolution Over 100 h in Neutral Water |
title_full | 2D CoOOH Sheet-Encapsulated Ni(2)P into Tubular Arrays Realizing 1000 mA cm(−2)-Level-Current-Density Hydrogen Evolution Over 100 h in Neutral Water |
title_fullStr | 2D CoOOH Sheet-Encapsulated Ni(2)P into Tubular Arrays Realizing 1000 mA cm(−2)-Level-Current-Density Hydrogen Evolution Over 100 h in Neutral Water |
title_full_unstemmed | 2D CoOOH Sheet-Encapsulated Ni(2)P into Tubular Arrays Realizing 1000 mA cm(−2)-Level-Current-Density Hydrogen Evolution Over 100 h in Neutral Water |
title_short | 2D CoOOH Sheet-Encapsulated Ni(2)P into Tubular Arrays Realizing 1000 mA cm(−2)-Level-Current-Density Hydrogen Evolution Over 100 h in Neutral Water |
title_sort | 2d coooh sheet-encapsulated ni(2)p into tubular arrays realizing 1000 ma cm(−2)-level-current-density hydrogen evolution over 100 h in neutral water |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770877/ https://www.ncbi.nlm.nih.gov/pubmed/34138122 http://dx.doi.org/10.1007/s40820-020-00476-4 |
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