Physical and electrochemical characterizations of nanostructured Pd/C and PdNi/C catalysts for methanol oxidation

被引：181

作者：

Liu, Zhaolin ^{[1
]}

Zhang, Xinhui ^{[1
]}

Hong, Liang ^{[1
,2
]}

机构：

[1] Inst Mat Res & Engn, Singapore 117602, Singapore

[2] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 119260, Singapore

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 04期

关键词：

PdNi nanoparticles; Pd nanoparticles; Alkaline fuel cell; Methanol oxidation; Direct methanol fuel cell; FUEL-CELL; ELECTROOXIDATION; ELECTRODES; ALLOY; ELECTROCATALYSIS; ACID;

D O I：

10.1016/j.elecom.2009.02.030

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Pd and PdNi nanoparticles supported on Vulcan XC-72 carbon were prepared by a chemical reduction with formic acid process. The catalysts were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), cyclic voltammetry, and chronoamperometry. The results showed that the Pd and PdNi nanoparticles, which were uniformly dispersed on carbon, were 2-10 nm in diameters. The PdNi/C catalyst has higher electrocatalytic activity for methanol oxidation in alkaline media than a comparative Pd/C catalyst and shows great potential as less expensive electrocatalyst for methanol electrooxidation in alkaline media in direct methanol fuel cells. (C) 2009 Elsevier B.V. All rights reserved.

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页码：925 / 928

页数：4

相关论文

共 19 条

[1] INVESTIGATION OF A NICKEL-OXIDE SYSTEM FOR HETEROGENEOUS OXIDATION OF ORGANIC-COMPOUNDS [J].

CHRISTOSKOVA, SG ;

DANOVA, N ;

GEORGIEVA, M ;

ARGIROV, OK ;

MEHANDZHIEV, D .

APPLIED CATALYSIS A-GENERAL, 1995, 128 (02) :219-229

[2] STUDY OF ELECTRODEPOSITED NICKEL-MOLYBDENUM, NICKEL-TUNGSTEN, COBALT-MOLYBDENUM, AND COBALT-TUNGSTEN AS HYDROGEN ELECTRODES IN ALKALINE WATER ELECTROLYSIS [J].

FAN, CL ;

PIRON, DL ;

SLEB, A ;

PARADIS, P .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (02) :382-387

[3] METHANOL ELECTROOXIDATION ON WELL-CHARACTERIZED PT-RN ALLOYS [J].

GASTEIGER, HA ;

MARKOVIC, N ;

ROSS, PN ;

CAIRNS, EJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (46) :12020-12029

[4] A study of the electro-catalytic oxidation of methanol on a cobalt hydroxide modified glassy carbon electrode [J].

Jafarian, M ;

Mahjani, MG ;

Heli, H ;

Gobal, F ;

Khajehsharifi, H ;

Hamedi, MH .

ELECTROCHIMICA ACTA, 2003, 48 (23) :3423-3429

[5] Nanosized Pt and PtRu colloids as precursors for direct methanol fuel cell catalysts [J].

Liu, ZL ;

Ling, XY ;

Lee, JY ;

Su, XD ;

Gan, LM .

JOURNAL OF MATERIALS CHEMISTRY, 2003, 13 (12) :3049-3052

[6]

MANOHARAN R, 1992, J MATER CHEM, V2, P875

[7] Particle size and alloying effects of Pt-based alloy catalysts for fuel cell applications [J].

Min, MK ;

Cho, JH ;

Cho, KW ;

Kim, H .

ELECTROCHIMICA ACTA, 2000, 45 (25-26) :4211-4217

[8] Structural, chemical, and electronic properties of Pt/Ni thin film electrodes for methanol electrooxidation [J].

Park, KW ;

Choi, JH ;

Sung, YE .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (24) :5851-5856

[9] INSITU INVESTIGATION OF THE FILM GROWTH-MECHANISM USING MULTIPLE INTERNAL-REFLECTION FOURIER-TRANSFORM INFRARED-SPECTROSCOPY (MIRFTIRS) .1. BEHAVIOR OF IRON AND PLATINUM-ELECTRODES IN ALKALINE METHANOLIC SOLUTIONS [J].

PHAM, MC ;

ADAMI, F ;

LACAZE, PC ;

DOUCET, JP ;

DUBOIS, JE .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1986, 201 (02) :413-421

[10] Nickel as a catalyst for the electro-oxidation of methanol in alkaline medium [J].

Rahim, MAA ;

Hameed, RMA ;

Khalil, MW .

JOURNAL OF POWER SOURCES, 2004, 134 (02) :160-169