| Efficient and Robust Hydrogen Evolution: Phosphorus Nitride Imide Nanotubes as Supports for Anchoring Single Ruthenium Sites | |
Yang, J ; Chen, BX; Liu, XK; Liu, W; Li, ZJ; Dong, JC; Chen, WX; Yan, WS; Yao, T; Duan, XZ; Wu, Y; Li, YD; Dong JC(董俊才); Chen WX(陈文星)
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| 2018 | |
| 发表期刊 | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (IF:11.994[JCR-2016],11.838[5-Year]) |
| ISSN | 1433-7851 |
| EISSN | 1521-3773 |
| 卷号 | 57期号:30页码:9495-9500 |
| 文章类型 | Article |
| 摘要 | Amorphous phosphorus nitride imide nanotubes (HPN) are reported as a novel substrate to stabilize materials containing single-metal sites. Abundant dangling unsaturated P vacancies play a role in stabilization. Ruthenium single atoms (SAs) are successfully anchored by strong coordination interactions between the d orbitals of Ru and the lone pair electrons of N located in the HPN matrix. The atomic dispersion of Ru atoms can be distinguished by X-ray absorption fine structure measurements and spherical aberration correction electron microscopy. Importantly, RuSAs@PN is an excellent electrocatalyst for the hydrogen evolution reaction (HER) in 0.5 M H2SO4, delivering a low overpotential of 24 mV at 10 mA cm(-2) and a Tafel slope of 38 mV dec(-1). The catalyst exhibits robust stability in a constant current test at a large current density of 162 mA cm(-2) for more than 24 hours, and is operative for 5000 cycles in a cyclic voltammetry test. Additionally, RuSAs@PN presents a turnover frequency (TOF) of 1.67 H(2)s(-1) at 25 mV, and 4.29 H(2)s(-1) at 50 mV, in 0.5 M H2SO4 solution, outperforming most of the reported hydrogen evolution catalysts. Density functional theory (DFT) calculations further demonstrate that the Gibbs free energy of adsorbed H* over the Ru SAs on PN is much closer to zero compared with the Ru/C and Ru SAs supported on carbon and C3N4, thus considerably facilitating the overall HER performance. |
| 关键词 | carbon-free supports hydrogen evolution reaction (HER) phosphorus nitride ruthenium single atoms |
| DOI | 10.1002/anie.201804854 |
| 关键词[WOS] | OXYGEN REDUCTION ; ATOM CATALYSTS ; CO OXIDATION ; ELECTROCATALYSTS ; ROUTE ; NANOPARTICLES ; PHOSPHIDE ; ELECTRODE ; TRENDS ; H-2 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| WOS记录号 | WOS:000438712600050 |
| EI入藏号 | 20182905575612 |
| 引用统计 | 正在获取...
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| 文献类型 | 期刊论文 |
| 条目标识符 | https://ir.ihep.ac.cn/handle/311005/286119 |
| 专题 | 多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 第一作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yang, J,Chen, BX,Liu, XK,et al. Efficient and Robust Hydrogen Evolution: Phosphorus Nitride Imide Nanotubes as Supports for Anchoring Single Ruthenium Sites[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2018,57(30):9495-9500. |
| APA | Yang, J.,Chen, BX.,Liu, XK.,Liu, W.,Li, ZJ.,...&陈文星.(2018).Efficient and Robust Hydrogen Evolution: Phosphorus Nitride Imide Nanotubes as Supports for Anchoring Single Ruthenium Sites.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,57(30),9495-9500. |
| MLA | Yang, J,et al."Efficient and Robust Hydrogen Evolution: Phosphorus Nitride Imide Nanotubes as Supports for Anchoring Single Ruthenium Sites".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 57.30(2018):9495-9500. |
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