Polyelectrolyte-stabilized Pt nanoparticles as new electrocatalysts for low temperature fuel cells

被引：78

作者：

Tian, Zhi Qun ^{[1
]}

Jiang, San Ping ^{[1
]}

Liu, Zengcai ^{[1
]}

Li, Lin ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 07期

关键词：

PEM fuel cells; Pt nanoparticles; polyelectrolytes; electrocatalysts;

D O I：

10.1016/j.elecom.2007.03.006

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Polyelectrolyte-stabilized Pt nanoparticles were synthesized by ethanol reduction of Pt salt (H2PtCl6) in the presence of ionic polyelectrolyes such as poly(diallyldimethylammonium chloride) (PDDA), poly(allylamine hydrochloride) (PAH), poly(sodium 4-styrenesulfonate) (PSS), Nafion, poly(acrylic acid) (PAA), poly(2-acrylamido-2-methyl-l-propanesulfonic acid) (PAMP) and non-ionic polymer, poly(vinylpyrrolidone) (PVP). The formation, size and distribution of polyelectrolyte-stabilized Pt nanoparticles (Pt NPs) were characterized by UV-vis absorption spectrum and transmission electron microscopy (TEM). Polyelectrolyte-stabilized Pt NPs have a particle size range of 2-4 nm, however, they show significantly different electrochemical activities for the methanol oxidation and oxygen reduction reactions. The best electrocatalytic activities were observed on PDDA-Pt and PSS-Pt NPs which also showed better electrocatalytic activity than that of the commercial Pt black catalysts. The results indicate the significant enhancing effect of the NH4+ and SO3- end groups of the polyelectrolytes on the electrocatalytic activities of Pt NPs for polymer electrolyte membrane fuel cells. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：1613 / 1618

页数：6

共 26 条

[1]

Aricò AS, 2001, FUEL CELLS, V1, P133

[2] Microwave synthesis of polymer-embedded Pt-Ru catalyst for direct methanol fuel cell [J].

Bensebaa, F ;

Farah, AA ;

Wang, DS ;

Bock, C ;

Du, XM ;

Kung, J ;

Le Page, Y .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (32) :15339-15344

[3] PoIy(N-vinylisobutyramide)-stabilized platinum nanoparticles:: synthesis and temperature-responsive behavior in aqueous solution [J].

Chen, CW ;

Takezako, T ;

Yamamoto, K ;

Serizawa, T ;

Akashi, M .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2000, 169 (1-3) :107-116

[4] Synthesis of ion conducting polymer protected nanometer size platinum colloids [J].

Dalmia, A ;

Lineken, CL ;

Savinell, RF .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1998, 205 (02) :535-537

[5] Well-dispersed surfactant-stabilized Pt/C nanocatalysts for fuel cell application: Dispersion control and surfactant removal [J].

Hui, CL ;

Li, XG ;

Hsing, IM .

ELECTROCHIMICA ACTA, 2005, 51 (04) :711-719

[6] Synthesis and characterization of PDDA-stabilized Pt nanoparticles for direct methanol fuel cells [J].

Jiang, San Ping ;

Liu, Zengcai ;

Tang, Hao Lin ;

Pan, Mu .

ELECTROCHIMICA ACTA, 2006, 51 (26) :5721-5730

[7] Synthesis of PDDA-Pt nanoparticles for the self-assembly of electrode/Nafion membrane interface of polymer electrolyte fuel cells [J].

Liu, Zengcai ;

Jiang, San Ping .

JOURNAL OF POWER SOURCES, 2006, 159 (01) :55-58

[8]

Lyons M. E. G., 1994, ELECTROACTIVE POLYM

[9] Reduction of Pt usage in fuel cell electrocatalysts with carbon nanotube electrodes [J].

Matsumoto, T ;

Komatsu, T ;

Arai, K ;

Yamazaki, T ;

Kijima, M ;

Shimizu, H ;

Takasawa, Y ;

Nakamura, J .

CHEMICAL COMMUNICATIONS, 2004, (07) :840-841

[10]

Mayer ABR, 2001, POLYM ADVAN TECHNOL, V12, P96, DOI 10.1002/1099-1581(200101/02)12:1/2<96::AID-PAT943>3.0.CO

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