期刊
ACS SENSORS
卷 4, 期 5, 页码 1261-1269出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssensors.9b00127
关键词
MXene; organ-like structure; alkalized Ti3C2Tx; NH3 and humidity sensing; room temperature
资金
- National Nature Science Foundation of China [61831011, 61327804, 61520106003, 61803171]
- Program for Chang Jiang Scholars and Innovative Research Team in University [IRT13018]
- National Key Research and Development Program of China [2016YFCO207300, 2016YFC 0201002]
- Application and Basic Research of Jilin Province [20130102010 JC]
- Young Elite Scientists Sponsorship Program by CAST [2018QNRC001]
- Program for JLU Science and Technology Innovative Research Team [JLUS-TIRT 2017TD-07]
- Fundamental Research Funds for the Central Universities
- China Postdoctoral Science Foundation [2018M630322]
Ti3C2Tx MXene with an organ-like structure was synthesized from Ti3AlC2 (MAX phase) through the typical hydrofluoric (HF) acid etching method. Ti3C2Tx MXene was further alkaline-treated with a sodium hydroxide solution to obtain alkalized Ti3C2Tx. Room-temperature planar-type gas- and humidity-sensing devices were also fabricated by utilizing Ti3C2Tx MXene and alkalized Ti3C2Tx sensing material based on the dip coating method, respectively. The intercalation of the alkali metal ion (Na+) and the increase of the surface terminal oxygen-fluorine ratio ([O]/[F]) in Ti3C2Tx can effectively improve humidity- and gas-sensing properties at room temperature. The developed alkalized Ti3C2Tx sensor exhibited excellent humidity-sensing characteristics (approximately 60 times response signal change) in the relative humidity (RH) with a range of 11-95% and considerable NH3 sensing performance (28.87% response value to 100 ppm of NH3) at room temperature. The improvement of NH3 and humidity-sensing properties indicated that alkalized Ti3C2Tx has great potential in chemical sensors, especially in NH3 and humidity sensors.
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