期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 53, 期 27, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/ab810f
关键词
nanoparticle superlattices; micromotor; tubular microstructure; self-assembly
资金
- National Natural Science Foundation of China [61975035, U1632115]
- Science and Technology Commission of Shanghai Municipality [17JC1401700]
- National Key Technologies R&D Program of China [2015ZX02102003]
- Program of Shanghai Academic Research Leader [19XD1400600]
- NSFC [21872038, 21733003]
- MOST [2017YFA0207303]
- Key Basic Research Program of Science and Technology Commission of Shanghai Municipality [17JC1400100]
Exploring micromotors with outstanding propulsion efficiency is of great importance for aspects ranging from enhancement of performance to realization of applications. Improvements in propulsion efficiency lead to a lower fuel requirementand broadens the potential application areas for higher environment compatibility. In this article, a tubular micromotor with catalytic nanoparticle superlattices is fabricated through a simple epitaxial assembly method. A high surface-to-volume ratio due to the use of catalytic nanoparticles, a carbon outer layer and cooperative propulsion of multitubes enables the micromotor to move in biocompatible environment with a low concentration of fuel. In addition, magnetic nanoparticles are integrated into the micromotor to offer effective control of the direction of movement by using a magnetic field. This work provides a simple and low-cost fabrication method for a micromotor with high performance, which is expected to meet practical demands.
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