Efficient electrocatalyst utilization: electrochemical deposition of Pt nanoparticles using nafion membrane as a template

Chou, Ju, Jayaraman, Shrisudersan, Ranasinghe, Asanga D., McFarland, Eric W., Buratto, Steven K. and Metiu, Horia (2006) Efficient electrocatalyst utilization: electrochemical deposition of Pt nanoparticles using nafion membrane as a template. Journal of Physical Chemistry B, 110 14: 7119-7121. doi:10.1021/jp054910k


Author Chou, Ju
Jayaraman, Shrisudersan
Ranasinghe, Asanga D.
McFarland, Eric W.
Buratto, Steven K.
Metiu, Horia
Title Efficient electrocatalyst utilization: electrochemical deposition of Pt nanoparticles using nafion membrane as a template
Journal name Journal of Physical Chemistry B   Check publisher's open access policy
ISSN 1520-6106
1520-5207
Publication date 2006-04-01
Sub-type Article (original research)
DOI 10.1021/jp054910k
Open Access Status Not yet assessed
Volume 110
Issue 14
Start page 7119
End page 7121
Total pages 3
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Abstract We deposit Pt particles electrochemically on an electrode covered with a Nation membrane. Platinum ions travel through the hydrophilic channels of the membrane, and platinum deposits are formed at the place where the channels make contact with the planar electrode. This procedure deposits the catalyst only at the end of the hydrophilic channels that cross the membrane; no catalyst is placed under the hydrophobic domains, where it would not be in contact with the electrolyte. By performing a series of cyclic voltammograms with this system, we show that deposition of the platinum through the membrane achieves better platinum utilization than deposition of platinum on the naked electrode followed by the placement of the membrane on top.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemical Engineering Publications
 
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