CORE
🇺🇦
make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
气泡推进型中空Janus微球运动特性的实验研究
Authors
崔海航
张静
+3 more
李战华
王雷磊
郑旭
Publication date
15 April 2017
Publisher
Abstract
本文通过Pt-SiO2型(铂-二氧化硅型)中空Janus微球在低浓度2%~4%H2O2溶液中的气泡驱动实验,观察到在每个气泡生长-溃灭周期内,Janus微球的运动呈现3个特征阶段,分别为自扩散泳、气泡生长和气泡溃灭。其中气泡溃灭阶段微球在射流驱动下的推进速度可达每秒几十毫米,比前2个阶段的平均速度大2~3个数量级。实验观察到气泡生长阶段其半径与时间存在Rb~t1/3和Rb~t1/2两种标度率。由于气泡在Janus微球催化剂表面(Pt侧)的生长点偏离对称轴位置,Janus微球的运动轨迹呈圆周形。随H2O2溶液浓度的增加,还可以进一步提高Janus微球的运动速度。此研究不仅定量分析了Janus微球的运动特性,而且为实际应用中提高Janus双面微马达的运动速度和能量利用率提供了参考依据
Similar works
Full text
Available Versions
Institute Of Mechanics,Chinese Academy of Sciences
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:dspace.imech.ac.cn:311007/...
Last time updated on 12/02/2018