BROWSE

Related Scientist

Researcher

성영은
나노입자 연구단
more info

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

Cited 0 time in webofscience Cited 0 time in scopus
14 Viewed 2 Downloaded
Title
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
Author(s)
Karuppannan, M; Kim, Y; Gok, S; Lee, E; Hwang, JY; Jang, JH; Cho, YH; Lim, T; Yung-Eun Sung; Kwon, OJ
Publication Date
2019-09
Journal
ENERGY & ENVIRONMENTAL SCIENCE, v.12, no.9, pp.2820 - 2829
Publisher
ROYAL SOC CHEMISTRY
Abstract
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 degrees 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). ©The Royal Society of Chemistry 2019
URI
https://pr.ibs.re.kr/handle/8788114/6886
ISSN
1754-5692
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
Files in This Item:
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.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse