BROWSE

Related Scientist

sung,yungeun's photo.

sung,yungeun
나노입자연구단
more info

ITEM VIEW & DOWNLOAD

Carbon-supported ordered Pt-Ti alloy nanoparticles as durable oxygen reduction reaction electrocatalyst for polymer electrolyte membrane fuel cells

Cited 2 time in webofscience Cited 2 time in scopus
1,252 Viewed 366 Downloaded
Title
Carbon-supported ordered Pt-Ti alloy nanoparticles as durable oxygen reduction reaction electrocatalyst for polymer electrolyte membrane fuel cells
Author(s)
Park H.-Y.; Jeon T.-Y.; Lee K.-S.; Yoo S.J.; Young-Eun Sung; Jang J.H.
Subject
Durability, ; Electrocatalyst, ; Oxygen reduction reaction, ; Platinum-titanium alloy, ; Polymer electrolyte membrane fuel cell
Publication Date
2016-12
Journal
JOURNAL OF ELECTROCHEMICAL SCIENCE AND TECHNOLOGY, v.7, no.4, pp.269 - 276
Publisher
KOREAN ELECTROCHEMISTRY SOC한국전기화학회
Abstract
Carbon-supported ordered Pt-Ti alloy nanoparticles were prepared as a durable and efficient oxygen reduction reaction (ORR) electrocatalyst for polymer electrolyte membrane fuel cells (PEMFCs) via wet chemical reduction of Pt and Ti precursors with heat treatment at 800°C. X-ray diffraction analysis confirmed that the prepared electrocatalysts with Ti precursor molar compositions of 40% (PtTi40) and 25% (PtTi25) had ordered Pt3Ti and Pt8Ti structures, respectively. Comparison of the ORR polarization before and after 1500 electrochemical cycles between 0.6 and 1.1 V showed little change in the ORR polarization curve of the electrocatalysts, demonstrating the high stability of the PtTi40 and PtTi25 alloys. Under the same conditions, commercial carbon-supported Pt nanoparticle electrocatalysts exhibited a negative potential shift (10 mV) in the ORR polarization curve after electrochemical cycling, indicating degradation of the ORR activity. © 2016, Korean Electrochemical Society. All rights reserved
URI
https://pr.ibs.re.kr/handle/8788114/4278
DOI
10.5229/JECST.2016.7.4.269
ISSN
2093-8551
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
Carbon-supported ordered Pt-Ti alloy nanoparticles as.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