Enhanced Metal-Support Interactions Boost the Electrocatalytic Water Splitting of Supported Ruthenium Nanoparticles on a Ni3 N/NiO Heterojunction at Industrial Current Density
© 2023 Wiley-VCH GmbH..
Developing highly efficient and stable hydrogen production catalysts for electrochemical water splitting (EWS) at industrial current densities remains a great challenge. Herein, we proposed a heterostructure-induced-strategy to optimize the metal-support interaction (MSI) and the EWS activity of Ru-Ni3 N/NiO. Density functional theory (DFT) calculations firstly predicted that the Ni3 N/NiO-heterostructures can improve the structural stability, electronic distributions, and orbital coupling of Ru-Ni3 N/NiO compared to Ru-Ni3 N and Ru-NiO, which accordingly decreases energy barriers and increases the electroactivity for EWS. As a proof-of-concept, the Ru-Ni3 N/NiO catalyst with a 2D Ni3 N/NiO-heterostructures nanosheet array, uniformly dispersed Ru nanoparticles, and strong MSI, was successfully constructed in the experiment, which exhibited excellent HER and OER activity with overpotentials of 190 mV and 385 mV at 1000 mA cm-2 , respectively. Furthermore, the Ru-Ni3 N/NiO-based EWS device can realize an industrial current density (1000 mA cm-2 ) at 1.74 V and 1.80 V under alkaline pure water and seawater conditions, respectively. Additionally, it also achieves a high durability of 1000 h (500 mA cm-2 ) in alkaline pure water.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:62 |
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| Enthalten in: |
Angewandte Chemie (International ed. in English) - 62(2023), 46 vom: 13. Nov., Seite e202312644 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liu, Rui [VerfasserIn] |
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| Links: |
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| Themen: |
Electrochemical Water Splitting |
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| Anmerkungen: |
Date Revised 07.11.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1002/anie.202312644 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM361972024 |
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| 520 | |a © 2023 Wiley-VCH GmbH. | ||
| 520 | |a Developing highly efficient and stable hydrogen production catalysts for electrochemical water splitting (EWS) at industrial current densities remains a great challenge. Herein, we proposed a heterostructure-induced-strategy to optimize the metal-support interaction (MSI) and the EWS activity of Ru-Ni3 N/NiO. Density functional theory (DFT) calculations firstly predicted that the Ni3 N/NiO-heterostructures can improve the structural stability, electronic distributions, and orbital coupling of Ru-Ni3 N/NiO compared to Ru-Ni3 N and Ru-NiO, which accordingly decreases energy barriers and increases the electroactivity for EWS. As a proof-of-concept, the Ru-Ni3 N/NiO catalyst with a 2D Ni3 N/NiO-heterostructures nanosheet array, uniformly dispersed Ru nanoparticles, and strong MSI, was successfully constructed in the experiment, which exhibited excellent HER and OER activity with overpotentials of 190 mV and 385 mV at 1000 mA cm-2 , respectively. Furthermore, the Ru-Ni3 N/NiO-based EWS device can realize an industrial current density (1000 mA cm-2 ) at 1.74 V and 1.80 V under alkaline pure water and seawater conditions, respectively. Additionally, it also achieves a high durability of 1000 h (500 mA cm-2 ) in alkaline pure water | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Electrochemical Water Splitting | |
| 650 | 4 | |a Electronic Structure Modulation | |
| 650 | 4 | |a Heterogeneous Interface | |
| 650 | 4 | |a Long-Term Stability | |
| 650 | 4 | |a Metal-Support Interaction | |
| 700 | 1 | |a Sun, Mingzi |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Xiangjian |e verfasserin |4 aut | |
| 700 | 1 | |a Lv, Zunhang |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Xinyu |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Jinming |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Yarong |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Liuhua |e verfasserin |4 aut | |
| 700 | 1 | |a Feng, Xiao |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Wenxiu |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Bolong |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Bo |e verfasserin |4 aut | |
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