Third-body effects of native surfactants on Pt nanoparticle electrocatalysts in proton exchange fuel cells

Title
Third-body effects of native surfactants on Pt nanoparticle electrocatalysts in proton exchange fuel cells
Authors
정영훈김수진정동영박희영성영은유성종장종현
Keywords
PEMFC; catalyst; ORR; Pt; surfactant
Issue Date
2015-02
Publisher
Chemical communications
Citation
VOL 51, NO 14, 2968-2971
Abstract
The residual surfactant organic molecules on electrocatalysts are expected to enhance the tolerance to specific anion adsorption, whereas the surfactants have been generally regarded as contaminants that block active surfaces. In this study, the Pt nanoparticles with adsorbed surfactants were prepared, and their electrochemical characteristics at various phosphoric acid concentrations were studied by the half-cell test. The third-body effect was experimentally confirmed by the single-cell test with a phosphoric acid-doped polybenzimidazole membrane.
URI
http://pubs.kist.re.kr/handle/201004/49360
ISSN
13597345
Appears in Collections:
KIST Publication > Article
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