An ultrasensitive moisture driven actuator based on small flakes of graphene oxide
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- 作者：Guochuang XuAuthor Vitae ; Ji ChenAuthor Vitae ; Miao ZhangAuthor Vitae ; Gaoquan Shi ; gshi@tsinghua.edu.cnAuthor Vitae
- 关键词：Actuator ; Small flakes ; Graphene oxide ; Humidity
- 刊名：Sensors and Actuators B: Chemical
- 出版年：2017
- 出版时间：April 2017
- 年：2017
- 卷：242
- 期：Complete
- 页码：418-422
- 全文大小：1425 K
- 卷排序：242
文摘
A moisture driven actuator was prepared by using small flakes of graphene oxide (SGO) as the actuation material. The SGO film can adsorb about 22 wt% of water compared with its own weight by changing relative humidity (RH) from 20% to 50%. An SGO/reduced conventional GO bilayer actuator showed superior actuation performance. The actuator can move an object 30 times heavier than its own weight.