Three-dimensional network of graphene grown with carbon nanotubes as carbon support for fuel cells

被引：41

作者：

Jhan, Jing-Yi ^{[1
]}

Huang, Yu-Wei ^{[1
]}

Hsu, Chun-Han ^{[1
]}

Teng, Hsisheng ^{[1
]}

Kuo, Daniel ^{[2
]}

Kuo, Ping-Lin ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Chem Engn, Tainan 70101, Taiwan

[2] Univ Illinois, Urbana, IL USA

来源：

ENERGY | 2013年 / 53卷

关键词：

Fuel cells; Electrode; Graphene; Carbon nanotubes; Electrocatalysis; POLYOL SYNTHESIS; NANOPARTICLES; CATALYSTS; EXFOLIATION; WATER; OXIDE;

D O I：

10.1016/j.energy.2013.03.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A thermally reduced graphene oxide (TRGO) grown with carbon nanotubes composite (G-CNT) was utilized as three-dimensional highly conductive carbon scaffolds, where a large amount of small and homogeneous Pt nanoparticles (from 3.37 +/- 1.22 to 4.24 +/- 1.83 nm) was directly synthesized on G-CNT to acquire a new type of catalyst (Pt/G-CNT). Meanwhile, Pt nanoparticles loaded on TRGO (Pt/TRGO) and on TRGO blended with carbon nanotubes (Pt/G-b-CNT) were prepared for comparison. The G-CNT showed a very high electrical conductivity (144.4 S cm(-1)) compared to the G-b-CNT (67.5 S cm(-1)) and TRGO (9.1 S cm(-1)). In contrast to Pt/G-b-CNT (36.8 m(2) g(-1)) and Pt/TRGO (28.1 m(2) g(-1)), Pt/G-CNT showed a very high electrochemically active surface area (77.4 m(2) g(-1)). As these catalysts were utilized as the anode for the fuel cell, the maximum power density value for Pt/G-CNT (32.0 mW cm(-2)) was about 65% and 74% higher than that of Pt/G-b-CNT (19.4 mW cm(-2)) and Pt/TRGO (18.4 mW cm(-2)), respectively, and 26% higher than that of E-TEK (25.4 mW cm(-2)). (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：282 / 287

页数：6

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