Synthesis and Characterization of Platinum Nanoparticles on PT-Coated Mesoporous Silica as an Electrocatalyst for Direct Methanol Fuel Cells

被引：4

作者：

Karimi, Mohammad ^{[1
]}

Zhad, Hamid Reza Lotfi Zadeh ^{[1
]}

Aboufazeli, Forouzan ^{[1
]}

Sadeghi, Omid ^{[1
]}

Najafi, Ezzatollah ^{[1
]}

机构：

[1] Islamic Azad Univ, Dept Chem, Shahr E Rey Branch, Tehran, Iran

来源：

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS | 2013年 / 23卷 / 02期

关键词：

Mesoporous silica nanoparticles; Conductive polymer; Platinum nanoparticles; Methanol oxidation; Fuel cell; CONTAINING CARBON NANOTUBES; OXIDATION; PALLADIUM; CATALYSTS; MEMBRANE; SBA-15; ANODE;

D O I：

10.1007/s10904-012-9791-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Nanoparticles of mesoporous silica are synthesized and modified by Poly-thiophene (PT) to improve the electrical conductivity. Platinum nanoparticles are synthesized and deposited on the surface of the modified mesoporous silica. The materials in each step are well characterized by X-ray powder diffraction, high resolution transmission electronic microscopy, thermal analysis (TGA/DTA), nitrogen sorption analysis, elemental analysis (CHNS), inductive coupled plasma and optical emission spectroscopy. This composite is used as an anodic electrocatalyst for direct methanol fuel cell application. The influence of loading of the electrocatalyst and temperature on the performance of a direct methanol fuel cell is studied and the results are discussed. A maximum power density of 35.96 mW cm(-2) at a current density of 129.44 mA cm(-2) was obtained, which is attributed to the dispersion and accessibility of the modified mesoporous silica support in the electrocatalyst mixture for the methanol oxidation reaction.

引用

页码：385 / 392

页数：8

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