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Electrodeposition of Pt-Decorated Ni(OH)(2)/CeO(2) Hybrid as Superior Bifunctional Electrocatalyst for Water Splitting
The facile synthesis of highly active and stable bifunctional electrocatalysts to catalyze water splitting is attractive but challenging. Herein, we report the electrodeposition of Pt-decorated Ni(OH)(2)/CeO(2) (PNC) hybrid as an efficient and robust bifunctional electrocatalyst. The graphite-suppor...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
AAAS
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7877398/ https://www.ncbi.nlm.nih.gov/pubmed/33623913 http://dx.doi.org/10.34133/2020/9068270 |
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author | Liu, Huanhuan Yan, Zhenhua Chen, Xiang Li, Jinhan Zhang, Le Liu, Fangming Fan, Guilan Cheng, Fangyi |
author_facet | Liu, Huanhuan Yan, Zhenhua Chen, Xiang Li, Jinhan Zhang, Le Liu, Fangming Fan, Guilan Cheng, Fangyi |
author_sort | Liu, Huanhuan |
collection | PubMed |
description | The facile synthesis of highly active and stable bifunctional electrocatalysts to catalyze water splitting is attractive but challenging. Herein, we report the electrodeposition of Pt-decorated Ni(OH)(2)/CeO(2) (PNC) hybrid as an efficient and robust bifunctional electrocatalyst. The graphite-supported PNC catalyst delivers superior hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) activities over the benchmark Pt/C and RuO(2), respectively. For overall water electrolysis, the PNC hybrid only requires a cell voltage of 1.45 V at 10 mA cm(−2) and sustains over 85 h at 1000 mA cm(−2). The remarkable HER/OER performances are attributed to the superhydrophilicity and multiple effects of PNC, in which Ni(OH)(2) and CeO(2) accelerate HER on Pt due to promoted water dissociation and strong electronic interaction, while the electron-pulling Ce cations facilitate the generation of high-valence Ni OER-active species. These results suggest the promising application of PNC for H(2) production from water electrolysis. |
format | Online Article Text |
id | pubmed-7877398 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | AAAS |
record_format | MEDLINE/PubMed |
spelling | pubmed-78773982021-02-22 Electrodeposition of Pt-Decorated Ni(OH)(2)/CeO(2) Hybrid as Superior Bifunctional Electrocatalyst for Water Splitting Liu, Huanhuan Yan, Zhenhua Chen, Xiang Li, Jinhan Zhang, Le Liu, Fangming Fan, Guilan Cheng, Fangyi Research (Wash D C) Research Article The facile synthesis of highly active and stable bifunctional electrocatalysts to catalyze water splitting is attractive but challenging. Herein, we report the electrodeposition of Pt-decorated Ni(OH)(2)/CeO(2) (PNC) hybrid as an efficient and robust bifunctional electrocatalyst. The graphite-supported PNC catalyst delivers superior hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) activities over the benchmark Pt/C and RuO(2), respectively. For overall water electrolysis, the PNC hybrid only requires a cell voltage of 1.45 V at 10 mA cm(−2) and sustains over 85 h at 1000 mA cm(−2). The remarkable HER/OER performances are attributed to the superhydrophilicity and multiple effects of PNC, in which Ni(OH)(2) and CeO(2) accelerate HER on Pt due to promoted water dissociation and strong electronic interaction, while the electron-pulling Ce cations facilitate the generation of high-valence Ni OER-active species. These results suggest the promising application of PNC for H(2) production from water electrolysis. AAAS 2020-12-15 /pmc/articles/PMC7877398/ /pubmed/33623913 http://dx.doi.org/10.34133/2020/9068270 Text en Copyright © 2020 Huanhuan Liu et al. https://creativecommons.org/licenses/by/4.0/ Exclusive Licensee Science and Technology Review Publishing House. Distributed under a Creative Commons Attribution License (CC BY 4.0). |
spellingShingle | Research Article Liu, Huanhuan Yan, Zhenhua Chen, Xiang Li, Jinhan Zhang, Le Liu, Fangming Fan, Guilan Cheng, Fangyi Electrodeposition of Pt-Decorated Ni(OH)(2)/CeO(2) Hybrid as Superior Bifunctional Electrocatalyst for Water Splitting |
title | Electrodeposition of Pt-Decorated Ni(OH)(2)/CeO(2) Hybrid as Superior Bifunctional Electrocatalyst for Water Splitting |
title_full | Electrodeposition of Pt-Decorated Ni(OH)(2)/CeO(2) Hybrid as Superior Bifunctional Electrocatalyst for Water Splitting |
title_fullStr | Electrodeposition of Pt-Decorated Ni(OH)(2)/CeO(2) Hybrid as Superior Bifunctional Electrocatalyst for Water Splitting |
title_full_unstemmed | Electrodeposition of Pt-Decorated Ni(OH)(2)/CeO(2) Hybrid as Superior Bifunctional Electrocatalyst for Water Splitting |
title_short | Electrodeposition of Pt-Decorated Ni(OH)(2)/CeO(2) Hybrid as Superior Bifunctional Electrocatalyst for Water Splitting |
title_sort | electrodeposition of pt-decorated ni(oh)(2)/ceo(2) hybrid as superior bifunctional electrocatalyst for water splitting |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7877398/ https://www.ncbi.nlm.nih.gov/pubmed/33623913 http://dx.doi.org/10.34133/2020/9068270 |
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