In situ transformation of Fe-doped Ni12P5 into low-crystallized NiFe2O4 with high-spin Fe4+ for efficient electrocatalytic water oxidation
文献类型：期刊论文
| 作者 | Wang, Haojie; Zhao, Cuijiao; Wang, Guozhong ; Zhang, Haimin
|
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2021-03-26 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/d1ta01310f |
| 通讯作者 | Zhang, Haimin(zhanghm@issp.ac.cn) |
| 英文摘要 | The widespread application of renewable energy technologies, such as electrochemical water splitting to produce H-2 and rechargeable metal-air batteries, has called for the development of inexpensive and robust oxygen evolution reaction (OER) electrocatalysts. In this work, we report the synthesis of ultrafine Fe-doped Ni12P5 nanoparticles anchored on cotton-derived P-doped porous carbon ((FexNiy)(12)P-5@PPC) by a facile impregnation-pyrolysis process. The results demonstrated that the Fe doping amount in Ni12P5 plays an important role in regulating the OER activity of electrocatalysts. As a result, the obtained (Fe0.25Ni0.75)(12)P-5@PPC with a large surface area of 847.2 m(2) g(-1) and an average nanoparticle size of similar to 8.5 nm exhibited superior OER activity, achieving extremely low overpotentials of 131 and 198 mV at 10 and 100 mA cm(-2) in 1.0 M KOH electrolyte, respectively. The comprehensive investigations revealed that low-crystallized NiFe2O4 with high-spin Fe species in situ transformed from Fe-doped Ni12P5 during electrocatalysis is responsible for the high OER activity. The findings in this work would be helpful for rational design and development of inexpensive and robust OER electrocatalysts for applications in renewable energy technologies. |
| 资助项目 | National Key R&D Program of China[2017YFA0207202] ; National Natural Science Foundation of China[51872292] ; Collaborative Innovation Program of Hefei Science Center, CAS[2019HSCCIP009] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000639579200001 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Collaborative Innovation Program of Hefei Science Center, CAS |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/121609]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhang, Haimin |
| 作者单位 | Chinese Acad Sci, Ctr Environm & Energy Nanomat, CAS Ctr Excellence Nanosci,HFIPS, Inst Solid State Phys,Key Lab Mat Phys,Anhui Key, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Haojie,Zhao, Cuijiao,Wang, Guozhong,et al. In situ transformation of Fe-doped Ni12P5 into low-crystallized NiFe2O4 with high-spin Fe4+ for efficient electrocatalytic water oxidation[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021. |
| APA | Wang, Haojie,Zhao, Cuijiao,Wang, Guozhong,&Zhang, Haimin.(2021).In situ transformation of Fe-doped Ni12P5 into low-crystallized NiFe2O4 with high-spin Fe4+ for efficient electrocatalytic water oxidation.JOURNAL OF MATERIALS CHEMISTRY A. |
| MLA | Wang, Haojie,et al."In situ transformation of Fe-doped Ni12P5 into low-crystallized NiFe2O4 with high-spin Fe4+ for efficient electrocatalytic water oxidation".JOURNAL OF MATERIALS CHEMISTRY A (2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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