Preparation and catalytic activity of Pt/C materials via microwave irradiation

被引：18

作者：

Wang, Hong-Wen ^{[1
]}

Dong, Rui-Xuan ^{[1
]}

Chang, Hsin-Yu ^{[1
]}

Liu, Ching-Lin ^{[1
]}

Chen-Yang, Yui-Whei ^{[1
]}

机构：

[1] Chung Yuan Christian Univ, Ctr Nanotechnol, Dept Chem, Chungli 320, Taiwan

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 03期

关键词：

microwave irradiation; Pt/C catalyst;

D O I：

10.1016/j.matlet.2006.05.067

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microwave heating was employed to prepare highly dispersed Pt/C catalyst. Uniform platinum nanoparticles with average diameter of about 3.0-5.0 nm dispersed on carbon materials (XC-72) were synthesized using a domestic microwave oven. Synthesized Pt/C materials were characterized by X-ray diffraction and transmission electron microscopy. The particle size and size distribution of Pt nanoparticles greatly depend on microwave irradiation duration, where the heating temperature rises rapidly as the process proceeds. Cyclic voltammetry demonstrates that Pt/C catalysts derived from microwave irradiation for 90 s exhibits higher catalytic activity than a commercial Pt/C catalyst (E-Tek) at room temperature. The improvement in electrocatalytic activity of synthesized Pt/C materials is attributed to uniformity of particle size, well dispersion and high surface area, which is obtained around 175 degrees C and irradiation for 90 s. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：830 / 833

页数：4

共 15 条

[1] Shape-controlled synthesis of colloidal platinum nanoparticles [J].

Ahmadi, TS ;

Wang, ZL ;

Green, TC ;

Henglein, A ;

ElSayed, MA .

SCIENCE, 1996, 272 (5270) :1924-1926

[2] Formation of carbon-supported PtM alloys for low temperature fuel cells: a review [J].

Antolini, E .

MATERIALS CHEMISTRY AND PHYSICS, 2003, 78 (03) :563-573

[3] Rapid synthesis of a Pt1Ru1/carbon nanocomposite using microwave irradiation:: A DMFC anode catalyst of high relative performance [J].

Boxall, DL ;

Deluga, GA ;

Kenik, EA ;

King, WD ;

Lukehart, CM .

CHEMISTRY OF MATERIALS, 2001, 13 (03) :891-900

[4]

Boxall DL, 2001, CHEM MATER, V13, P806, DOI [10.1021/cm000521l, 10.1021/cm0005211]

[5] Microwave-assisted synthesis of carbon supported Pt nanoparticles for fuel cell applications [J].

Chen, WX ;

Lee, JY ;

Liu, ZL .

CHEMICAL COMMUNICATIONS, 2002, (21) :2588-2589

[6] 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

[7] Physical and electrochemical characterizations of microwave-assisted polyol preparation of carbon-supported PtRu nanoparticles [J].

Liu, ZL ;

Lee, JY ;

Chen, WX ;

Han, M ;

Gan, LM .

LANGMUIR, 2004, 20 (01) :181-187

[8] Carbon-supported Pt and PtRu nanoparticles as catalysts for a direct methanol fuel cell [J].

Liu, ZL ;

Ling, XY ;

Su, XD ;

Lee, JY .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (24) :8234-8240

[9] Review and analysis of PEM fuel cell design and manufacturing [J].

Mehta, V ;

Cooper, JS .

JOURNAL OF POWER SOURCES, 2003, 114 (01) :32-53

[10] New PtRu alloy colloids as precursors for fuel cell catalysts [J].

Paulus, UA ;

Endruschat, U ;

Feldmeyer, GJ ;

Schmidt, TJ ;

Bönnemann, H ;

Behm, RJ .

JOURNAL OF CATALYSIS, 2000, 195 (02) :383-393

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