Achieving efficient alkaline hydrogen evolution reaction on long-range Ni sites in Ru clusters-immobilized Ni3N array catalyst
文献类型：期刊论文
| ; | |
| 作者 | Gao, Xiaorui; Zang, Wenjie; Li, Xin ; Wang, Zhanke; Zheng, Lirong; Kou, Zongkui
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
 ; CHEMICAL ENGINEERING JOURNAL
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| 出版日期 | 2022 ; 2022 |
| 卷号 | 451页码:138698 |
| ISSN号 | 1385-8947 ; 1385-8947 |
| DOI | 10.1016/j.cej.2022.138698 ; 10.1016/j.cej.2022.138698 |
| 文献子类 | Article ; Article |
| 英文摘要 | Hydrogen (H2) production from alkaline water electrocatalysis is economically appealing yet significantly hindered by the sluggish H2O adsorption and H* binding kinetics on active sites during hydrogen evolution reaction (HER). Herein, we interfacially immobilize Ru clusters on the hierarchical nickel nitride (Ru-Ni3N) nanosheet arrays via the filling of Ru3+ species into the metal vacancies of nickel hydroxide precursors and the subsequent controllable nitridation. The optimized Ru-Ni3N shows the outstanding HER performance, affording a 30-fold rise in the intrinsic activity of Ni sites, a outperforming-Pt/C overpotential at ≥ 125 mA cm−2 while remaining a robust stability. We further establish by a combined study of density functional theory (DFT) calculations with experimental analyses that long-range Ni sites around Ru sites act as active sites via the electron delocalization, remarkably weakening the H2O adsorption and H* binding barriers for enhancing the alkaline HER kinetics. Moreover, it also demonstrates an excellent pH-universal HER and overall water splitting performance. © 2022 Elsevier B.V.; Hydrogen (H2) production from alkaline water electrocatalysis is economically appealing yet significantly hindered by the sluggish H2O adsorption and H* binding kinetics on active sites during hydrogen evolution reaction (HER). Herein, we interfacially immobilize Ru clusters on the hierarchical nickel nitride (Ru-Ni3N) nanosheet arrays via the filling of Ru3+ species into the metal vacancies of nickel hydroxide precursors and the subsequent controllable nitridation. The optimized Ru-Ni3N shows the outstanding HER performance, affording a 30-fold rise in the intrinsic activity of Ni sites, a outperforming-Pt/C overpotential at ≥ 125 mA cm−2 while remaining a robust stability. We further establish by a combined study of density functional theory (DFT) calculations with experimental analyses that long-range Ni sites around Ru sites act as active sites via the electron delocalization, remarkably weakening the H2O adsorption and H* binding barriers for enhancing the alkaline HER kinetics. Moreover, it also demonstrates an excellent pH-universal HER and overall water splitting performance. © 2022 Elsevier B.V. |
| 电子版国际标准刊号 | 1873-3212 ; 1873-3212 |
| 语种 | 英语 ; 英语 |
| WOS记录号 | WOS:000860289100001 ; WOS:000860289100001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299331]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Gao, Xiaorui,Zang, Wenjie,Li, Xin,et al. Achieving efficient alkaline hydrogen evolution reaction on long-range Ni sites in Ru clusters-immobilized Ni3N array catalyst, Achieving efficient alkaline hydrogen evolution reaction on long-range Ni sites in Ru clusters-immobilized Ni3N array catalyst[J]. CHEMICAL ENGINEERING JOURNAL, CHEMICAL ENGINEERING JOURNAL,2022, 2022,451, 451:138698, 138698. |
| APA | Gao, Xiaorui,Zang, Wenjie,Li, Xin,Wang, Zhanke,Zheng, Lirong,&Kou, Zongkui.(2022).Achieving efficient alkaline hydrogen evolution reaction on long-range Ni sites in Ru clusters-immobilized Ni3N array catalyst.CHEMICAL ENGINEERING JOURNAL,451,138698. |
| MLA | Gao, Xiaorui,et al."Achieving efficient alkaline hydrogen evolution reaction on long-range Ni sites in Ru clusters-immobilized Ni3N array catalyst".CHEMICAL ENGINEERING JOURNAL 451(2022):138698. |
入库方式： OAI收割
来源：高能物理研究所
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