Perovskites decorated with oxygen vacancies and Fe-Ni alloy nanoparticles as high-efficiency electrocatalysts for the oxygen evolution reaction
文献类型：期刊论文
| 作者 | Zhu, Kaiyue1,3; Wu, Tao2; Li, Mingrun1; Lu, Ruifeng2; Zhu, Xuefeng1; Yang, Weishen1 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2017-10-07 |
| 卷号 | 5期号:37页码:19836-19845 |
| 英文摘要 | Perovskite oxides have emerged as promising electrocatalysts for the sluggish oxygen evolution reaction (OER) which limits the efficiencies of rechargeable energy storage technologies and hydrogen production from water splitting. Understanding materials characteristics that affect OER activity is of paramount importance for the optimization of perovskite oxides for the OER. Herein, a series of Sr2Fe1.3Ni0.2Mo0.5O6-delta (SFNMs) decorated with oxygen vacancies and Fe-Ni alloy nanoparticles were designed to increase both the number and the reactivity of active sites in the perovskite catalysts. Theoretical calculations reveal that oxygen vacancies have a beneficial effect on the OER by increasing the adsorption energy of H2O, in line with the experimental results that the SFNM sample enriched with oxygen vacancies possesses a high intrinsic OER activity. SFNM decorated with metallic nanoparticles, which was prepared by reducing SFNM in 5% H-2/Ar, shows a Tafel slope of 59 mV dec(-1) and an OER overpotential of 0.36 V at a current density of 10 mA cm(-2). This performance is superior to that of Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) and close to that of commercial IrO2. The outstanding performance is attributed to the fact that the oxygen vacancies together with the exsolved alloy nanoparticles on the perovskite backbone can increase both the number and the reactivity of active sites. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Energy & Fuels ; Materials Science |
| 关键词[WOS] | OXIDE FUEL-CELLS ; INITIO MOLECULAR-DYNAMICS ; AUGMENTED-WAVE METHOD ; DEFICIENT PEROVSKITE ; WATER OXIDATION ; AIR BATTERIES ; SURFACE-AREA ; PERFORMANCE ; ELECTROLYSIS ; CATALYSTS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000411739700033 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/150151]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Jiangsu, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Kaiyue,Wu, Tao,Li, Mingrun,et al. Perovskites decorated with oxygen vacancies and Fe-Ni alloy nanoparticles as high-efficiency electrocatalysts for the oxygen evolution reaction[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(37):19836-19845. |
| APA | Zhu, Kaiyue,Wu, Tao,Li, Mingrun,Lu, Ruifeng,Zhu, Xuefeng,&Yang, Weishen.(2017).Perovskites decorated with oxygen vacancies and Fe-Ni alloy nanoparticles as high-efficiency electrocatalysts for the oxygen evolution reaction.JOURNAL OF MATERIALS CHEMISTRY A,5(37),19836-19845. |
| MLA | Zhu, Kaiyue,et al."Perovskites decorated with oxygen vacancies and Fe-Ni alloy nanoparticles as high-efficiency electrocatalysts for the oxygen evolution reaction".JOURNAL OF MATERIALS CHEMISTRY A 5.37(2017):19836-19845. |
入库方式： OAI收割
来源：大连化学物理研究所
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