Autonomously motile catalytic nanomotors by bubble propulsion

被引：299

作者：

Gibbs, J. G. ^{[1
]}

Zhao, Y. -P. ^{[1
]}

机构：

[1] Univ Georgia, Dept Phys & Astron, Nanoscale Sci & Engn Ctr, Athens, GA 30602 USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 16期

基金：

美国国家科学基金会;

关键词：

bubbles; catalysts; dissociation; hydrogen compounds; nanotechnology; surface tension; MOLECULAR MOTORS; MOVEMENT; GROWTH; NANOMACHINES; NANOROTORS; MECHANISM;

D O I：

10.1063/1.3122346

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A bubble propulsion model based on catalyzed hydrogen peroxide decomposition and momentum change via O(2) bubbles detaching from the catalytic surface is proposed to explain the autonomous motion of catalytic nanomotors. The propelling force closely depends upon the surface tension of the liquid as well as the bulk concentration of hydrogen peroxide, and the model predictions are supported by the experimental data of Pt-coated spherical silica microbead motors.

引用

页数：3

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