Improved electrode durability using a boron-doped diamond catalyst support for proton exchange membrane fuel cells
- Authors
- Kim, Jungdo; Chun, Yoon-Soo; Lee, Seung-Koo; Lim, Dae-Soon
- Issue Date
- 2015
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- RSC ADVANCES, v.5, no.2, pp.1103 - 1108
- Indexed
- SCIE
SCOPUS
- Journal Title
- RSC ADVANCES
- Volume
- 5
- Number
- 2
- Start Page
- 1103
- End Page
- 1108
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/96319
- DOI
- 10.1039/c4ra13389g
- ISSN
- 2046-2069
- Abstract
- The durability of a fuel cell electrode was improved by using a boron-doped diamond (BDD) electrode support. BDD nanoparticles were synthesized by a size-controllable electrostatic self-assembly method (ESA). Moreover, the morphological changes as a function of operating time were investigated to prove the durability enhancement. First, diamond seeds were formed by an ESA method. The BDDs were then synthesized around these seeds by a conventional hot-filament chemical vapor deposition process. A Pt catalyst was then deposited by the polyol method, and it was characterized by scanning electron microscopy and transmission electron microscopy. The supporting BDD particles were 100-200 nm in size, whereas the Pt catalyst particles were 2-4 nm. Multiwalled carbon nanotubes (MWCNTs) and a conventional supporting material (Vulcan XC-72) were also studied for comparison. The electrochemical characteristics were examined by cyclic voltammetry and unit cell tests. The BDD support showed a larger surface area and better performance than the MWCNT and Vulcan XC-72 supports. According to the accelerated long-term stability tests, the BDD support material was more stable than the MWCNT and Vulcan XC-72 supports. These results show that BDD supports improve the durability of the fuel cell electrode.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholar.korea.ac.kr/handle/2021.sw.korea/96319)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.