An indium-induced-synthesis In0.17Ru0.83O2 nanoribbon as highly active electrocatalyst for oxygen evolution in acidic media at high current densities above 400 mA cm(-2)
文献类型：期刊论文
| 作者 | Chen, Shi1; Wang, Changlai1; Gao, Feiyue1; Yang, Yang1; Huang, Minxue1; Tong, Huigang1; Cheng, Zhiyu1; Wang, Pengcheng1; Wang, Peichen1; Tu, Jinwei1 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2022-01-12 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/d1ta10022j |
| 通讯作者 | Chen, Qianwang(cqw@ustc.edu.cn) |
| 英文摘要 | Ruthenium dioxide-based electrocatalysts show the most potential in the acidic oxygen evolution reaction (OER). However, most of them show low current density, low mass activity and unsatisfactory stability under strong acidic and oxidative conditions. Herein, an indium-induced-synthesis InxRuyO2 nanoribbon electrocatalyst (named In0.17Ru0.83O2-350) was prepared, which achieves an overpotential of 177 mV at a current density of 10 mA cm(-2) in 0.5 mol L-1 sulfuric acid. The mass activity is up to 1094.90 A g(Ru)(-1) at an overpotential of 300 mV, which is among the highest for ruthenium dioxide-based catalysts. Moreover, the catalyst displays a current density up to 400 mA cm(-2), which is the highest current density in a small electrode system reported so far. It is found that indium doping can shift down the d-band center of Ru and reduce its work function, which can boost the electron transfer capacity between the catalyst surface and the reactants. Finite-element method simulations further demonstrate that the nanoribbon structure can not only expose more active sites to improve the mass activity of ruthenium and reaction current density, but also enhance the surface electric field intensity to boost the adsorption capacity of water molecules and the capacity of electron transfer, thereby accelerating the dynamics of OER. |
| WOS关键词 | CO2 HYDROGENATION ; WATER ; PYROCHLORE ; RU ; PERFORMANCE ; NANOSHEETS ; CATALYSTS |
| 资助项目 | National Natural Science Foundation (NSFC)[51772283] ; National Key R&D 229 Program of China[2016YFA0401801] ; Hong Kong Scholars Program[XJ2019022] ; Fundamental Research Funds for the Central Universities[WK2060000032] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000746593100001 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Natural Science Foundation (NSFC) ; National Key R&D 229 Program of China ; Hong Kong Scholars Program ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/127355]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Chen, Qianwang |
| 作者单位 | 1.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Shi,Wang, Changlai,Gao, Feiyue,et al. An indium-induced-synthesis In0.17Ru0.83O2 nanoribbon as highly active electrocatalyst for oxygen evolution in acidic media at high current densities above 400 mA cm(-2)[J]. JOURNAL OF MATERIALS CHEMISTRY A,2022. |
| APA | Chen, Shi.,Wang, Changlai.,Gao, Feiyue.,Yang, Yang.,Huang, Minxue.,...&Chen, Qianwang.(2022).An indium-induced-synthesis In0.17Ru0.83O2 nanoribbon as highly active electrocatalyst for oxygen evolution in acidic media at high current densities above 400 mA cm(-2).JOURNAL OF MATERIALS CHEMISTRY A. |
| MLA | Chen, Shi,et al."An indium-induced-synthesis In0.17Ru0.83O2 nanoribbon as highly active electrocatalyst for oxygen evolution in acidic media at high current densities above 400 mA cm(-2)".JOURNAL OF MATERIALS CHEMISTRY A (2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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