Journal
RSC ADVANCES
Volume 6, Issue 90, Pages 87213-87220Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra17066h
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Funding
- Foundation for Innovative Research Groups of the Natural Science Foundation of China [51521003, 51175129]
- Special Financial Grant from the China Postdoctoral Science Foundation [2012T50339]
- Program of Introducing Talents of Discipline to Universities [B07018]
- Self-Planned Task of State Key Laboratory of Robotics and System (HIT) [SKLRS201607C]
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In order to increase the velocity and propulsion efficiency, an accelerated microrocket with a biomimetic lotus-leaf-like surface is proposed through an electrodeposition technique along with a self-assembly technique. The microrocket is propelled by the thrust of hydrogen bubbles generated from a redox reaction in a strong acidic solution. A low-surface-energy (LSE) layer along with rough structures is constructed at the outer surface of the microrocket to reduce the drag force resulting from the environmental fluid. Physical insights on the drag force reduction and the corresponding acceleration are identified. The decrease of drag reduction is achieved. A comparison of the average velocity of the microrockets with and without a LSE hydrophobic layer is performed. As we found, the average velocity of the microrocket is increased after being self-assembled with a biomimetic hydrophobic surface.
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