Boosting the hydrogen evolution performance of ruthenium clusters through synergistic coupling with cobalt phosphide
文献类型：期刊论文
| 作者 | Xu, JY; Liu, TF; Li, JJ; Li, B1,2; Liu, YF; Zhang, BS; Xiong, DH; Amorim, I; Li, W; Liu, LF |
| 刊名 | ENERGY & ENVIRONMENTAL SCIENCE
 |
| 出版日期 | 2018-07-01 |
| 卷号 | 11期号:7页码:1819-1827 |
| ISSN号 | 1754-5692 |
| DOI | 10.1039/c7ee03603e |
| 英文摘要 | In this article, we for the first time report the synthesis and electrocatalytic properties of ruthenium cobalt phosphide hybrid clusters for the hydrogen evolution reaction (HER). Two types of catalysts are investigated: wet chemical reduction of Ru3+ on pre-formed cobalt phosphide (CoP) nanoparticles results in ruthenium-cobalt phosphide side-by-side structures (Ru/CoP); while phosphorizing chemically reduced RuCo alloy leads to the formation of hybrid ruthenium cobalt phosphide (RuCoP) clusters. Compared to pristine Ru clusters, both Ru/CoP and RuCoP show significantly improved HER performance in both acidic and alkaline solutions. In particular, the hybrid RuCoP clusters demonstrate a considerably low overpotential ((10)) of 11 mV at -10 mA cm(-2) and a high turnover frequency (TOF) of 10.95 s(-1) at = 100 mV in 0.5 M H2SO4. Even in 1.0 M KOH the excellent HER activity of the RuCoP clusters remains, with a very low (10) of 23 mV and exceptionally high TOF value of 7.26 s(-1) at = 100 mV. Moreover, the RuCoP catalysts can sustain galvanostatic electrolysis in both acidic and alkaline solutions at -10 mA cm(-2) for 150 h with little degradation, showing better catalytic stability than the state-of-the-art commercial Pt/C catalysts. Our density functional theory (DFT) calculations indicate that the RuCoP hybrid exhibits a hydrogen adsorption energy very close to that of Pt and water and -OH adsorption energies distinct from pristine Ru, which reasonably explain the experimentally observed excellent HER activities and highlight the importance of synergistic coupling with cobalt phosphide to boost the HER performance of ruthenium. |
| 学科主题 | Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000438392400017 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/80116]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.Int Iberian Nanotechnol Lab INL, Av Mestre Jose Veiga, P-4715330 Braga, Portugal 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, JY,Liu, TF,Li, JJ,et al. Boosting the hydrogen evolution performance of ruthenium clusters through synergistic coupling with cobalt phosphide[J]. ENERGY & ENVIRONMENTAL SCIENCE,2018,11(7):1819-1827. |
| APA | Xu, JY.,Liu, TF.,Li, JJ.,Li, B.,Liu, YF.,...&Liu, LF.(2018).Boosting the hydrogen evolution performance of ruthenium clusters through synergistic coupling with cobalt phosphide.ENERGY & ENVIRONMENTAL SCIENCE,11(7),1819-1827. |
| MLA | Xu, JY,et al."Boosting the hydrogen evolution performance of ruthenium clusters through synergistic coupling with cobalt phosphide".ENERGY & ENVIRONMENTAL SCIENCE 11.7(2018):1819-1827. |
入库方式： OAI收割
来源：金属研究所
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