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Joo, Sang Hoon
Nanomaterials & Catalysis Lab
Research Interests
  • Catalyst, energy conversion, fuel cells, electrolyzer, ORR, HER, OER


Effects of ionomer content on Pt catalyst/ordered mesoporous carbon support in polymer electrolyte membrane fuel cells

DC Field Value Language Ahn, Chi-Yeong ko Cheon, Jae-Yeong ko Joo, Sang-Hoon ko Kim, Junbom ko 2014-04-10T01:33:23Z - 2013-06-14 ko 2013-01 ko
dc.identifier.citation JOURNAL OF POWER SOURCES, v.222, pp.477 - 482 ko
dc.identifier.issn 0378-7753 ko
dc.identifier.uri -
dc.description.abstract In this paper, the optimum Nafion ionomer content in platinum (Pt) dispersed on ordered mesoporous carbon (OMC) catalyst is investigated. The ionomer content can affect catalytic activity, ionic conductivity and mass transfer characteristics. A nano-replication method using ordered mesoporous silicas (OMS) is applied to prepare OMCs, and Pt/OMC with high loading are synthesized by the incipient wetness method for polymer electrolyte membrane fuel cells (PEMFCs). Catalyst characteristics have been analyzed using TGA, XRD, TEM and BET. Cathode electrodes have different ionomer loadings (in the range of 5-30 wt. %) with Pt/OMCs. Commercial Pt/C catalyst is used in anode. All membrane electrode assemblies (MEAs) fabricated by the decal transfer method show about 0.4 mg cm(-2) Pt loading. The PEMFC performances have been measured by electrochemical methods such as polarization curves, electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV). The performances is different at low and high current density regions, and the optimum content of ionomer is 10 wt. % in the catalyst, due to unique structure of OMCs. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher ELSEVIER SCIENCE BV ko
dc.title Effects of ionomer content on Pt catalyst/ordered mesoporous carbon support in polymer electrolyte membrane fuel cells ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84866696148 ko
dc.identifier.wosid 000311129900067 ko
dc.type.rims ART ko
dc.description.wostc 7 *
dc.description.scopustc 0 * 2014-10-18 * 2014-07-12 *
dc.identifier.doi 10.1016/j.jpowsour.2012.09.012 ko
dc.identifier.url ko
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