Direct fabrication of gas diffusion cathode by pulse electrodeposition for proton exchange membrane water electrolysis

Title
Direct fabrication of gas diffusion cathode by pulse electrodeposition for proton exchange membrane water electrolysis
Authors
장종현Hyanjoo ParkSeunghoe ChoeHoyoung KimDong-Kwon KimGeonHee ChoYoonSu ParkDon-Hyun HaSang Hyun AhnSoo-Kil Kim
Issue Date
2018-06
Publisher
Applied surface science
Citation
VOL 444-311
Abstract
Pt catalysts for water electrolysis were prepared on carbon paper by using both direct current and pulse electrodeposition. Controlling the mass transfer of Pt precursor in the electrolyte by varying the deposition potential enables the formation of various Pt particle shapes such as flower-like and polyhedral particles. Further control of the deposition parameters for pulse electrodeposition resulted in changes to the particle size and density. In particular, the upper potential of pulse was found to be the critical parameter controlling the morphology of the particles and their catalytic activity. In addition to the typical electrochemical measurements, Pt samples deposited on carbon paper were used as cathodes for a proton exchange membrane water electrolyser. This single cell test revealed that our Pt particle samples have exceptional mass activity while being cost effective.
URI
http://pubs.kist.re.kr/handle/201004/67451
ISSN
0169-4332
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KIST Publication > Article
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