Preparation of platinum-based catalysts for fuel cell using a supercritical fluid deposition method: Effects of reaction parameters

Yi Chieh Lai, Ying-Liang Chen, Mei Yin Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Pt-based catalysts deposited on the surface of a gas diffusion electrode were prepared using a supercritical fluid deposition method. The metallic precursor, platinum (II) acetylacetonate (Pt(II)(acac) 2 , was first dissolved in supercritical CO 2 (scCO 2 ) and impregnated onto the carbon particles supported by carbon paper (uncatalyzed gas diffusion electrodes) with a projected active area of 5 cm 2 . The effects of reaction parameters (reduction temperature, time, and addition of methanol) on metal loading and dispersion on substrate were evaluated according to the surface analysis techniques. Impregnation of Pt(acac) 2 into carbon paper in the scCO 2 indicates that metal compactness on substrate is correlated with impregnation time, while Pt aggregation increased along with the thermal reduction time and temperature. This is an abstract of a paper presented at the 106th AWMA Annual Conference and Exhibition (Chicago, IL 6/25-28/2013).

Original languageEnglish
Title of host publication106th Air and Waste Management Association Annual Conference and Exhibition, ACE 2013
PublisherAir and Waste Management Association
Pages806-810
Number of pages5
ISBN (Print)9781629934440
Publication statusPublished - 2012 Jan 1
Event106th Air and Waste Management Association Annual Conference and Exhibition, ACE 2013 - Chicago, IL, United States
Duration: 2013 Jun 252013 Jun 28

Publication series

NameProceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA
Volume2
ISSN (Print)1052-6102

Conference

Conference106th Air and Waste Management Association Annual Conference and Exhibition, ACE 2013
CountryUnited States
CityChicago, IL
Period13-06-2513-06-28

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Energy(all)

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