Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/99163
Title: Growth of copper nanocubes on graphene paper as free-standing electrodes for direct hydrazine fuel cells
Authors: Gao, Hongcai
Wang, Yuxi
Xiao, Fei
Ching, Chi Bun
Duan, Hongwei
Keywords: DRNTU::Engineering::Nanotechnology
Issue Date: 2012
Source: Gao, H., Wang, Y., Xiao, F., Ching, C. B., & Duan, H. (2012). Growth of copper nanocubes on graphene paper as free-standing electrodes for direct hydrazine fuel cells. The Journal of Physical Chemistry C, 116(14), 7719-7725.
Series/Report no.: The journal of physical chemistry C
Abstract: We have developed a new type of flexible electrodes based on Cu nanocube-decorated free-standing graphene paper (GP) using a facile electrodeposition method. The Cu nanocubes–graphene paper (Cu–GP) hybrid electrode processes remarkable electrocatalytic activity with an onset potential of −0.10 V toward hydrazine oxidation in alkaline solutions and can serve as the catalyst layer for direct hydrazine fuel cells. One interesting finding is that a copper hydroxide/oxide layer in situ formed on Cu nanocube surfaces plays an important role in enhancing the electrocatalytic activity and durability of the electrocatalyst. A totally irreversible and diffusion-controlled oxidation of hydrazine occurs on the electrocatalyst, eventually leading to environmentally friendly products such as nitrogen and water.
URI: https://hdl.handle.net/10356/99163
http://hdl.handle.net/10220/17170
DOI: http://dx.doi.org/10.1021/jp3021276
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MAE Journal Articles

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