Cathodic oxygen reduction at the catalyst layer formed from Pt/carbon with adsorbed water

被引：26

作者：

Maruyama, J ^{[1
]}

Abe, I ^{[1
]}

机构：

[1] Osaka Municipal Tech Res Inst, Dept Organ Chem, Joto Ku, Osaka 5368553, Japan

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2003年 / 545卷 / SUPPL.期

关键词：

polymer electrolyte fuel cell; oxygen reduction; Pt/carbon Nafion (R); water adsorption; rotating disk electrode;

D O I：

10.1016/S0022-0728(03)00119-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An increase in Pt utilization in polymer electrolyte fuel cell electrodes is necessary to improve performance and reduce cost. In the present study, water adsorption was carried out as a pretreatment of Pt/carbon used with Nafion(R) solution to prepare a catalyst paste for electrode catalyst layer formation. Mercury porosimetry and cyclic voltammetry were used to characterize the catalyst layer, and the RIDE method to investigate its activity for cathodic oxygen reduction. The results revealed that Pt utilization was increased by the pretreatment due to Nafion(R) penetration into the pores of Pt/C and that oxygen reduction was enhanced at the catalyst layer. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：109 / 115

页数：7

共 26 条

[1]

[Anonymous], [No title captured]

[2] RRDE study of oxygen reduction on Pt nanoparticles inside Nafion®:: H2O2 production in PEMFC cathode conditions [J].

Antoine, O ;

Durand, R .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 2000, 30 (07) :839-844

[3] Oxygen reduction reaction kinetics and mechanism on platinum nanoparticles inside Nafion® [J].

Antoine, O ;

Bultel, Y ;

Durand, R .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 499 (01) :85-94

[4]

Appleby A.J., 1989, FUEL CELL HDB

[5] EXAMINATION OF THE IONOMER ELECTRODE INTERFACE USING THE FERRIC FERROUS REDOX COUPLE [J].

CHU, D ;

TRYK, D ;

GERVASIO, D ;

YEAGER, EB .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1989, 272 (1-2) :277-284

[6] Electrocatalytic reduction of dioxygen at platinum particles dispersed in a polyaniline film [J].

Coutanceau, C ;

Croissant, MJ ;

Napporn, T ;

Lamy, C .

ELECTROCHIMICA ACTA, 2000, 46 (04) :579-588

[7] ON SOLID POLYMER FUEL-CELLS [J].

DHAR, HP .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1993, 357 (1-2) :237-250

[8] O2 reduction on an ink-type rotating disk electrode using Pt supported on high-area carbons [J].

Gojkovic, SL ;

Zecevic, SK ;

Savinell, RF .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (11) :3713-3720

[9] OXYGEN REDUCTION KINETICS ON A PLATINUM RDE COATED WITH A RECAST NAFION1 FILM [J].

GOTTESFELD, S ;

RAISTRICK, ID ;

SRINIVASAN, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1987, 134 (06) :1455-1462

[10]

Gottesfeld S, 1997, ADV ELECTROCHEM SCI, V5, P195, DOI DOI 10.1002/9783527616794.CH4

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