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Issue 52, 2014
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Au–Fe/Ni alloy hybrid nanowire motors with dramatic speed

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Abstract

Au–Fe/Ni alloy nanowire motors, having an average length of 5.4 ± 1.2 μm and a diameter of 280 ± 10 nm, can move fast in a mixed fuel containing H2O2 and N2H4. The powered motion is attributed to the bubble thrust produced from catalytic decomposition of hydrogen peroxide on the Fe/Ni alloy segments, while hydrazine seems to act as a co-catalyst. The regulation of speed can be achieved by modulating the proportion of alloy composition, and the highest speed obtained is up to 850 μm s−1 (ca. 157 body-length per s), which is the fastest among all nanowire motors. Because of the ferronickel segment's magnetism, the Au–Fe/Ni alloy nanomotors also can be guided by the magnetic force, in addition to being controlled by the propelling force generated by the bubble thrust.

Graphical abstract: Au–Fe/Ni alloy hybrid nanowire motors with dramatic speed

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Supplementary files

Article information


Submitted
03 Apr 2014
Accepted
28 May 2014
First published
28 May 2014

RSC Adv., 2014,4, 27522-27525
Article type
Paper

Au–Fe/Ni alloy hybrid nanowire motors with dramatic speed

J. Li, Q. Xiao, J. Jiang, G. Chen and J. Sun, RSC Adv., 2014, 4, 27522
DOI: 10.1039/C4RA02959C

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