期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 222, 期 -, 页码 763-768出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2015.09.002
关键词
Graphene quantum dots; MWCNTs; Ammonia gas sensor
资金
- Natural Science Foundation of Fujian Province [2013J01233]
- National Natural Science Foundation of China [61377027]
- National Research Foundation of Korea [2013-016467]
- State Key Laboratory of Electronic Thin Films and Integrated Devices [KFJJ201309]
- Foundation of Fuzhou University [2011-XY-24]
We report a simple solution-process route to realize ammonia (NH3) gas sensor based on graphene quantum dots (GQDs). Transmission electron microscopy analysis confirmed that the 8-10nm GQDs were formed from multi-walled carbon nanotubes by using ultrasonication treatment. The as-fabricated gas sensor showed promising selectivity response when expose to NH3 ambient at room temperature. It is indicated that by adjusting the pH value of the aqueous GQDs in acidic and neutral, two types of gas sensors with contrary current responses could be obtained, which might be resulted from quantum confinement, edge effects and presence of functional groups on GQDs. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据