气候变化领域集成服务门户(CCPortal): A highly durable carbon-nanofiber-supported Pt-C core-shell cathode catalyst for ultra-low Pt loading proton exchange membrane fuel cells: Facile carbon encapsulation

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DOI	10.1039/c9ee01000a
	A highly durable carbon-nanofiber-supported Pt-C core-shell cathode catalyst for ultra-low Pt loading proton exchange membrane fuel cells: Facile carbon encapsulation
	Karuppannan M.; Kim Y.; Gok S.; Lee E.; Hwang J.Y.; Jang J.-H.; Cho Y.-H.; Lim T.; Sung Y.-E.; Kwon O.J.
发表日期	2019
ISSN	17545692
起始页码	2820
结束页码	2829
卷号	12 期号:9
英文摘要	The carbon encapsulation of nanosized Pt cathode catalysts for ultra-low Pt loading proton exchange membrane fuel cells is an effective approach to enhance their stability and catalytic activity for the oxygen reduction reaction (ORR). However, the synthesis procedures for such a catalyst are delicate and cumbersome. Therefore, it is difficult to use such procedures for mass production. Here, we have developed a facile strategy for synthesizing carbon-encapsulated Pt nanoparticles supported on carbon nanofibers (CNFs) using a Pt-aniline complex. This strategy begins with applying a wet Pt-aniline complex coating to CNFs. Heat-treating the coated CNFs produced 3-4 nm-sized Pt nanoparticles that were uniformly coated with a layer of carbon on the CNF surface (Pt@CS/CNF). Compared to other carbon-coated Pt catalysts, the stability and catalytic activity of Pt@CS/CNF for the ORR are high owing to the robustness of the carbon shells that secure the Pt nanoparticles. In a unit cell test, the performance of Pt@CS/CNF heat-treated at 900 °C was almost maintained for 30 000 accelerated stability test cycles, showing a negligible voltage loss at an operating current density of 0.8 A cm-2. © 2019 The Royal Society of Chemistry.
英文关键词	Aniline; Carbon nanofibers; Catalyst activity; Cathodes; Electrolytic reduction; Metal nanoparticles; Nanocatalysts; Platinum compounds; Synthesis (chemical); Carbon-encapsulated; Cathode catalyst; Effective approaches; Operating current densities; Oxygen reduction reaction; Pt nanoparticles; Stability tests; Synthesis procedure; Proton exchange membrane fuel cells (PEMFC); carbon nanotube; catalysis; catalyst; chemical reaction; comparative study; electrode; encapsulation; fuel cell; membrane; nanoparticle; platinum; 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/189827
作者单位	Department of Energy and Chemical Engineering, Innovation Centre for Chemical Engineering, Incheon National University, 119 Academy-ro Yeonsu-gu, Incheon, 22012, South Korea; School of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, South Korea; Strategy and Technology Division, Hyundai Motor Group, 37 Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-do, 16082, South Korea; Department of Chemical Engineering, Kangwon National University, Samcheok Gangwon-do, 25913, South Korea; Department of Chemical Engineering, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul, 06978, South Korea; Centre for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, South Korea
推荐引用方式 GB/T 7714	Karuppannan M.,Kim Y.,Gok S.,et al. A highly durable carbon-nanofiber-supported Pt-C core-shell cathode catalyst for ultra-low Pt loading proton exchange membrane fuel cells: Facile carbon encapsulation[J],2019,12(9).
APA	Karuppannan M..,Kim Y..,Gok S..,Lee E..,Hwang J.Y..,...&Kwon O.J..(2019).A highly durable carbon-nanofiber-supported Pt-C core-shell cathode catalyst for ultra-low Pt loading proton exchange membrane fuel cells: Facile carbon encapsulation.Energy & Environmental Science,12(9).
MLA	Karuppannan M.,et al."A highly durable carbon-nanofiber-supported Pt-C core-shell cathode catalyst for ultra-low Pt loading proton exchange membrane fuel cells: Facile carbon encapsulation".Energy & Environmental Science 12.9(2019).