Impedance studies on mesocarbon microbeads supported Pt-Ru catalytic anode

被引：49

作者：

Liu, YC ^{[1
]}

Qiu, XP ^{[1
]}

Zhu, WT ^{[1
]}

Wu, GS ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2003年 / 114卷 / 01期

关键词：

direct methanol fuel cell; impedance spectroscopy; methanol oxidation;

D O I：

10.1016/S0378-7753(02)00527-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The impedance behaviors of direct methanol fuel cell anode using mesocarbon microbeads supported Pt-Ru catalysts were studied. A loop reflecting an inductive behavior appears at the low-frequency end only when the anode is at higher overpotential. The Nafion content in the catalyst, the MEA hot press condition and the effects of the cell temperature on the impedance behaviors of the anode electrode were also investigated. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：10 / 14

页数：5

共 23 条

[1] Air electrode: Identification of intraelectrode rate phenomena via AC impedance [J].

Ahn, S ;

Tatarchuk, BJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (12) :4169-4175

[2] METHANOL OXIDATION ON CARBON-SUPPORTED PT-SN ELECTRODES IN SILICOTUNGSTIC ACID [J].

ARICO, AS ;

KIM, H ;

SHUKLA, AK ;

RAVIKUMAR, MK ;

ANTONUCCI, V ;

GIORDANO, N .

ELECTROCHIMICA ACTA, 1994, 39 (05) :691-700

[3] Optimization of operating parameters of a direct methanol fuel cell and physico-chemical investigation of catalyst-electrolyte interface [J].

Arico, AS ;

Creti, P ;

Antonucci, PL ;

Cho, J ;

Kim, H ;

Antonucci, V .

ELECTROCHIMICA ACTA, 1998, 43 (24) :3719-3729

[4] INVESTIGATION OF A CARBON-SUPPORTED QUATERNARY PT-RU-SN-W CATALYST FOR DIRECT METHANOL FUEL-CELLS [J].

ARICO, AS ;

POLTARZEWSKI, Z ;

KIM, H ;

MORANA, A ;

GIORDANO, N ;

ANTONUCCI, V .

JOURNAL OF POWER SOURCES, 1995, 55 (02) :159-166

[5] ELECTROCATALYTIC OXIDATION OF METHANOL ON PLATINUM-BASED BINARY ELECTRODES [J].

BEDEN, B ;

KADIRGAN, F ;

LAMY, C ;

LEGER, JM .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1981, 127 (1-3) :75-85

[6] Measurements of proton conductivity in the active layer of PEM fuel cell gas diffusion electrodes [J].

Boyer, C ;

Gamburzev, S ;

Velev, O ;

Srinivasan, S ;

Appleby, AJ .

ELECTROCHIMICA ACTA, 1998, 43 (24) :3703-3709

[7] The influence of current constriction on the impedance of polarizable electrodes - Application to fuel cell electrodes [J].

Fleig, J ;

Maier, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (11) :L302-L305

[8] CHARACTERIZATION OF CARBON-SUPPORTED PT-SN BIMETALLIC CATALYSTS FOR THE ELECTROCHEMICAL OXIDATION OF METHANOL [J].

GOKAGAC, G ;

KENNEDY, BJ ;

CASHION, JD ;

BROWN, LJ .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1993, 89 (01) :151-157

[9] AC IMPEDANCE OF FARADAIC REACTIONS INVOLVING ELECTROSORBED INTERMEDIATES .1. KINETIC-THEORY [J].

HARRINGTON, DA ;

CONWAY, BE .

ELECTROCHIMICA ACTA, 1987, 32 (12) :1703-1712

[10] A review of the state-of-the-art of the methanol crossover in direct methanol fuel cells [J].

Heinzel, A ;

Barragán, VM .

JOURNAL OF POWER SOURCES, 1999, 84 (01) :70-74

← 1 2 3 →