Increase in adsorptivity of sulfonate anions on Pt (111) surface with drying of ionomer

被引：79

作者：

Kodama, Kensaku ^{[1
]}

Jinnouchi, Ryosuke ^{[1
]}

Suzuki, Takahisa ^{[1
]}

Murata, Hajime ^{[1
]}

Hatanaka, Tatsuya ^{[1
]}

Morimoto, Yu ^{[1
]}

机构：

[1] Toyota Cent Res & Dev Labs Inc, Nagakute, Aichi 4801192, Japan

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2013年 / 36卷

关键词：

Pt (111) single crystal; Solid-state electrochemical cell; Ionomer; Sulfonate anion adsorption; Dry condition; REDUCTION REACTION; OXYGEN REDUCTION; CELL; PERFORMANCE; ELECTRODES; INTERFACES; KINETICS;

D O I：

10.1016/j.elecom.2013.09.005

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The interface between Nafion and Pt (111) was analyzed in a solid-state electrochemical cell to clarify the catalyst poisoning property of the ionomer in various hydration states. With dehydration of the ionomer, peaks for adsorption and desorption of the sulfonate anions in the cyclic voltammogram showed significant shifts to lower potentials, which indicate increase in the anion adsorptivity. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：26 / 28

页数：3

共 12 条

[1] Unprecedented Structural Sensitivity toward Average Terrace Width: Nafion Adsorption at Pt{hkl} Electrodes [J].

Ahmed, Mujib ;

Morgan, David ;

Attard, Gary Anthony ;

Wright, Edward ;

Thompsett, David ;

Sharman, Jonathan .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (34) :17020-17027

[2] Solid-state electrochemical oxygen reduction at Pt|Nafion® 117 and Pt|BAM3G™ 407 interfaces [J].

Basura, VI ;

Beattie, PD ;

Holdcroft, S .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1998, 458 (1-2) :1-5

[3] Kinetics of surface modification induced by submonolayer electrochemical oxygen adsorption on Pt(111) [J].

Bjoerling, Alexander ;

Ahlberg, Elisabet ;

Feliu, Juan M. .

ELECTROCHEMISTRY COMMUNICATIONS, 2010, 12 (03) :359-361

[4] Preparation and Fuel Cell Performance of Catalyst Layers Using Sulfonated Polyimide Ionomers [J].

Omata, Takuya ;

Tanaka, Manabu ;

Miyatake, Kenji ;

Uchida, Makoto ;

Uchida, Hiroyuki ;

Watanabe, Masahiro .

ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (02) :730-737

[5] KINETICS OF FUEL-CELL REACTIONS AT THE PLATINUM SOLID POLYMER ELECTROLYTE INTERFACE [J].

PAIK, W ;

SPRINGER, TE ;

SRINIVASAN, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1989, 136 (03) :644-649

[6] INVESTIGATIONS OF THE O-2 REDUCTION REACTION AT THE PLATINUM NAFION INTERFACE USING A SOLID-STATE ELECTROCHEMICAL-CELL [J].

PARTHASARATHY, A ;

MARTIN, CR ;

SRINIVASAN, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (04) :916-921

[7] An anomalous peak observed in the electrochemistry of the platinum/perfluorosulfonic acid membrane interface [J].

Sleightholme, Alice E. S. ;

Kucernak, Anthony .

ELECTROCHIMICA ACTA, 2011, 56 (11) :4396-4402

[8] Oxygen Reduction Reaction at Three-Phase Interfaces [J].

Subbaraman, Ram ;

Strmcnik, Dusan ;

Paulikas, Arvydas P. ;

Stamenkovic, Vojislav R. ;

Markovic, Nenad M. .

CHEMPHYSCHEM, 2010, 11 (13) :2825-2833

[9] Three Phase Interfaces at Electrified Metal-Solid Electrolyte Systems 1. Study of the Pt(hkl)-Nafion Interface [J].

Subbaraman, Ram ;

Strmcnik, Dusan ;

Stamenkovic, Vojislav ;

Markovic, Nenad M. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (18) :8414-8422

[10] Gas diffusion electrodes containing sulfonated poly (arylene ether) ionomer for polymer electrolyte fuel cells Part 2. Improvement of the cathode performance [J].

Yoda, Takeshi ;

Shimura, Takuya ;

Bae, Byungchan ;

Miyatake, Kenji ;

Uchida, Makoto ;

Uchida, Hiroyuki ;

Watanabe, Masahiro .

ELECTROCHIMICA ACTA, 2010, 55 (10) :3464-3470

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