气候变化领域集成服务门户(CCPortal): SiO2-protected shell mediated templating synthesis of Fe-N-doped carbon nanofibers and their enhanced oxygen reduction reaction performance

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DOI	10.1039/c8ee00673c
	SiO2-protected shell mediated templating synthesis of Fe-N-doped carbon nanofibers and their enhanced oxygen reduction reaction performance
	Hu B.-C.; Wu Z.-Y.; Chu S.-Q.; Zhu H.-W.; Liang H.-W.; Zhang J.; Yu S.-H.
发表日期	2018
ISSN	17545692
起始页码	2208
结束页码	2215
卷号	11 期号:8
英文摘要	Electrocatalytic reduction of oxygen plays a crucial role in many energy storage and conversion devices. Currently, the development of high-performance carbon-based non-precious-metal (NPM) oxygen reduction reaction (ORR) catalysts in acidic media still remains a great challenge. Herein, we report a highly active meso/microporous Fe-N-doped carbon nanofiber (Fe-N-CNF) catalyst prepared via a SiO2-protected shell mediated template method. The SiO2-protected shell not only restricts the free migration of iron species but also traps volatile gaseous substances during the pyrolysis process at high temperature, thus leading to a simultaneous optimization of both the surface functionalities and porous structures of the Fe-N-CNF catalysts. Compared to catalysts prepared without a SiO2-protected shell, the Fe-N-CNF catalysts exhibit a much enhanced ORR activity in an acidic medium, along with a superior long-term stability. © 2018 The Royal Society of Chemistry.
英文关键词	Carbon nanofibers; Catalysts; Doping (additives); Electrolytic reduction; Oxygen; Shells (structures); Silica; Electrocatalytic reduction of oxygens; Energy storage and conversions; Long term stability; Non-precious metals; Oxygen reduction reaction; Simultaneous optimization; Surface functionalities; Templating synthesis; Iron compounds; catalysis; catalyst; energy storage; iron; nitrogen; optimization; oxygen; performance assessment; pyrolysis; reduction; shell
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190180
作者单位	Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS, Center for Excellence in Nanoscience, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China; Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, China
推荐引用方式 GB/T 7714	Hu B.-C.,Wu Z.-Y.,Chu S.-Q.,et al. SiO2-protected shell mediated templating synthesis of Fe-N-doped carbon nanofibers and their enhanced oxygen reduction reaction performance[J],2018,11(8).
APA	Hu B.-C..,Wu Z.-Y..,Chu S.-Q..,Zhu H.-W..,Liang H.-W..,...&Yu S.-H..(2018).SiO2-protected shell mediated templating synthesis of Fe-N-doped carbon nanofibers and their enhanced oxygen reduction reaction performance.Energy & Environmental Science,11(8).
MLA	Hu B.-C.,et al."SiO2-protected shell mediated templating synthesis of Fe-N-doped carbon nanofibers and their enhanced oxygen reduction reaction performance".Energy & Environmental Science 11.8(2018).