MIL-100-Fe derived N-doped Fe/Fe3C@C electrocatalysts for efficient oxygen reduction reaction
文献类型：期刊论文
| 作者 | Guo, Dakai; Han, Sancan; Wang, Jiacheng1; Zhu, Yufang2 |
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 434页码:1266 |
| 关键词 | Iron carbide Carbon Electrocatalysts Oxygen reduction reaction |
| ISSN号 | 0169-4332 |
| DOI | 10.1016/j.apsusc.2017.11.230 |
| 英文摘要 | N-doped porous Fe/Fe3C@C electrocatalysts were prepared by the pyrolysis of the hexamethylenetetramine (HMT)-incorporated MIL-100-Fe at different temperatures (700-1000 degrees C) under N-2 atmosphere. Rotary evaporation of MIL-100-Fe and HMT solution could make more N-enriched HMT molecules enter into the pores of MIL-100-Fe, thus improving nitrogen contents of the final pyrolyzed samples. All pyrolyzed samples show porous textures with middle specific surface areas. The X-ray photoelectron spectroscopy (XPS) results demonstrate the successful introduction of N atoms into carbon framework. Sample Fe-N-2-800 prepared by annealing the precursors with the HMT/MIL-100-Fe weight ratio of 2 at 800 degrees C exhibits the best electrocatalytic activity towards the oxygen reduction reaction (ORR) in terms of onset potential and current density because of high graphitic N and pyridinic N content. The enwrapped Fe/Fe3C nanoparticles and Fe-Nx active sites in these samples could also boost the ORR activity synergistically. Moreover, sample Fe-N-2-800 demonstrates a dominant four electron reduction process, as well as excellent long-term operation stability and methanol crossover resistance. Thus, the N-doped Fe/Fe3C@C composites derived from the HMT-incorporated MIL-100-Fe are promising electrocatalysts to replace Pt/C for ORR in practical applications. (C) 2017 Elsevier B.V. All rights reserved. |
| 学科主题 | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| WOS记录号 | WOS:000419116600146 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | The authors gratefully acknowledge the support by the National Natural Science Foundation of China (51572172), and the Scientific Development Project of the University of Shanghai for Science and Technology (16KJFZ011, 2017KJFZ010). ; The authors gratefully acknowledge the support by the National Natural Science Foundation of China (51572172), and the Scientific Development Project of the University of Shanghai for Science and Technology (16KJFZ011, 2017KJFZ010). |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25096]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Univ Shanghai Sci & Technol, Sch Mat Sci & Engn, 516 Jungong Rd, Shanghai 200093, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 3.Huanggang Normal Univ, Coll Chem Engn, Hubei Key Lab Proc & Applicat Catalyt Mat, 146 Xingang 2 Rd, Huanggang City 438000, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Dakai,Han, Sancan,Wang, Jiacheng,et al. MIL-100-Fe derived N-doped Fe/Fe3C@C electrocatalysts for efficient oxygen reduction reaction[J]. APPLIED SURFACE SCIENCE,2018,434:1266, 1273. |
| APA | Guo, Dakai,Han, Sancan,Wang, Jiacheng,&Zhu, Yufang.(2018).MIL-100-Fe derived N-doped Fe/Fe3C@C electrocatalysts for efficient oxygen reduction reaction.APPLIED SURFACE SCIENCE,434,1266. |
| MLA | Guo, Dakai,et al."MIL-100-Fe derived N-doped Fe/Fe3C@C electrocatalysts for efficient oxygen reduction reaction".APPLIED SURFACE SCIENCE 434(2018):1266. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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