Carbon Aerogels Supported Pt Nanoparticles as Electrocatalysts for Methanol Oxidation in Alkaline Media

被引：7

作者：

Liu, Yong ^{[1
]}

Wei, Min ^{[2
]}

Qu, Jianying ^{[1
]}

Mao, Liqun ^{[1
]}

机构：

[1] Henan Univ, Inst Fine Chem & Engn, Coll Chem & Chem Engn, Kaifeng 475004, Peoples R China

[2] Henan Univ Technol, Coll Food Sci & Technol, Zhengzhou 450052, Peoples R China

来源：

JOURNAL OF THE CHINESE CHEMICAL SOCIETY | 2014年 / 61卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Carbon aerogels; Pt nanoparticles; Alkaline media; Methanol oxidation; SOL-GEL POLYCONDENSATION; FUEL-CELLS; OXYGEN REDUCTION; ELECTROOXIDATION; FORMALDEHYDE; RESORCINOL; CATALYSTS; PERFORMANCE; ELECTRODES; NANOTUBES;

D O I：

10.1002/jccs.201300637

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Carbon aerogels (CAs) were prepared by sol-gel polycondensation of resorcinol and formaldehyde with BET surface area of 616 m(2) g(-1) and the average pore size of 9.8 nm. The prepared CAs were used as supports for Pt nanoparticles for methanol oxidation in alkaline media. In comparison with Pt supported on commercial Vulcan XC-72R carbon (Pt/C) electrocatalysts, Pt supported on CAs (Pt/CAs) electrocatalysts exhibited higher peak current density and more negative onset potential toward methanol oxidation. The effects of different parameters such as NaOH concentration, methanol concentration, and scan rate on the methanol oxidation reaction were investigated in detail. The results showed that the Pt/CAs electrocatalysts had promising application for methanol oxidation in alkaline media.

引用

页码：404 / 408

页数：5

共 33 条

[1] Pt-NiO/C anode electrocatalysts for direct methanol fuel cells [J].

Amin, R. S. ;

Hameed, R. M. Abdel ;

El-Khatib, K. M. ;

Youssef, M. Elsayed ;

Elzatahry, A. A. .

ELECTROCHIMICA ACTA, 2012, 59 :499-508

[2]

Aricò AS, 2001, FUEL CELLS, V1, P133

[3] Characterization of carbon cryogel synthesized by sol-gel polycondensation and freeze-drying [J].

Babic, B ;

Kaluderovic, B ;

Vracar, L ;

Krstajic, N .

CARBON, 2004, 42 (12-13) :2617-2624

[4] Carbon nanotubes - the route toward applications [J].

Baughman, RH ;

Zakhidov, AA ;

de Heer, WA .

SCIENCE, 2002, 297 (5582) :787-792

[5] Highly dispersed Pt nanoparticles supported on poly(ionic liquids) derived hollow carbon spheres for methanol oxidation [J].

Bo, Xiangjie ;

Bai, Jing ;

Ju, Jian ;

Guo, Liping .

JOURNAL OF POWER SOURCES, 2011, 196 (20) :8360-8365

[6] Drying of resorcinol-formaldehyde gels with CO2 medium [J].

Czakkel, Orsolya ;

Szekely, Edit ;

Koczka, Bela ;

Geissler, Erik ;

Laszlo, Krisztina .

MICROPOROUS AND MESOPOROUS MATERIALS, 2012, 148 (01) :34-42

[7] Influences of mesopore size on oxygen reduction reaction catalysis of Pt/carbon aerogels [J].

Du, Hongda ;

Gan, Lin ;

Li, Baohua ;

Wu, Peng ;

Qiu, Yiling ;

Kang, Feiyu ;

Zeng, Yuqun .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (05) :2040-2043

[8] Effects of Alloyed and Oxide Phases on Methanol Oxidation of Pt-Ru/C Nanocatalysts of the Same Particle Size [J].

Godoi, Denis R. M. ;

Perez, Joelma ;

Villullas, H. Mercedes .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (19) :8518-8525

[9] Methanol crossover in direct methanol fuel cells: a link between power and energy density [J].

Gurau, B ;

Smotkin, ES .

JOURNAL OF POWER SOURCES, 2002, 112 (02) :339-352

[10] Mechanism and electrocatalysis in the direct methanol fuel cell [J].

Hamnett, A .

CATALYSIS TODAY, 1997, 38 (04) :445-457

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