title: Third-body effects of native surfactants on Pt nanoparticle electrocatalysts in proton exchange fuel cells.
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.
authors.affiliation: Fuel Cell Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Republic of Korea. jhjang@kist.re.kr.
authors.forename: Young-Hoon
authors.initials: YH
authors.lastname: Chung
authors.forename: Soo Jin
authors.initials: SJ
authors.lastname: Kim
authors.forename: Dong Young
authors.initials: DY
authors.lastname: Chung
authors.forename: Hee Young
authors.initials: HY
authors.lastname: Park
authors.forename: Yung-Eun
authors.initials: YE
authors.lastname: Sung
authors.forename: Sung Jong
authors.initials: SJ
authors.lastname: Yoo
authors.forename: Jong Hyun
authors.initials: JH
authors.lastname: Jang