Enhanced electron transfer kinetics through hybrid graphene-carbon nanotube films.

Enhanced electron transfer kinetics through hybrid graphene-carbon nanotube films.
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DOI:
10.1016/j.elecom.2014.08.024
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发表时间:
2014-11-01
影响因子:
5.4
通讯作者:
Glass, Jeffrey T.
Glass, Jeffrey T.
中科院分区:
工程技术3区
文献类型:
--
作者:
Henry, Philemon A.;Raut, Akshay S.;Ubnoske, Stephen M.;Parker, Charles B.;Glass, Jeffrey T.

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我们报告了石墨化碳纳米管 (g-CNT) 薄膜电化学反应性的首次研究。研究了 g-CNT 薄膜的亚铁-亚铁氰化物对的电子转移动力学,并与标准碳纳米管 (CNT) 的动力学进行了比较。 g-CNT 薄膜表现出更高的催化活性,其异质电子转移速率常数 k0 比标准 CNT 高大约两个数量级。使用扫描电子显微镜和拉曼光谱将较高的电子转移动力学与 g-CNT 薄膜的较高边缘密度相关联。
We report the first study of the electrochemical reactivity of a graphenated carbon nanotube (g-CNT) film. The electron transfer kinetics of the ferri-ferrocyanide couple were examined for a g-CNT film and compared to the kinetics to standard carbon nanotubes (CNTs). The g-CNT film exhibited much higher catalytic activity, with a heterogeneous electron-transfer rate constant, k0, approximately two orders of magnitude higher than for standard CNTs. Scanning electron microscopy and Raman spectroscopy were used to correlate the higher electron transfer kinetics with the higher edge-density of the g-CNT film.
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