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

Jing Yi Jhan, Yu Wei Huang, Chun Han Hsu, Hsisheng Teng, Daniel Kuo, Ping Lin Kuo

研究成果: Article同行評審

42 引文 斯高帕斯(Scopus)

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 m2 g-1) and Pt/TRGO (28.1 m2 g-1), Pt/G-CNT showed a very high electrochemically active surface area (77.4 m2 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).

原文English
頁(從 - 到)282-287
頁數6
期刊Energy
53
DOIs
出版狀態Published - 2013 五月 1

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 建築與營造
  • 污染
  • 機械工業
  • 工業與製造工程
  • 電氣與電子工程

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