Humidity sensing based strategy for in situ probing and manipulating electrified interfacial water adsorption dynamics

被引：5
作者：
Chu, Tianshu [1 ,2 ,3 ]
Mao, Xinyuan [1 ,2 ,3 ]
Zhang, Bowei [1 ,2 ,3 ,4 ]
Xuan, Fu-Zhen [1 ,2 ,3 ]
机构：
[1] East China Univ Sci & Technol, Shanghai Key Lab Intelligent Sensing & Detect Tech, Shanghai 200237, Peoples R China
[2] East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China
[3] East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai 200237, Peoples R China
[4] East China Univ Sci & Technol, CPCIF Key Lab Power Battery Syst & Safety, Shanghai 200237, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2023年 / 454卷
基金：
中国国家自然科学基金;
关键词：
Electrified interfacial water adsorption; Surface science; MXenes; Humidity sensing; MXENE; INTERCALATION; SPECTROSCOPY; EXFOLIATION; SENSOR;
D O I：
10.1016/j.cej.2022.140219
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Understanding and manipulating the ubiquitous electrified interfacial water adsorption dynamics are highly important in surface science, sensing, catalysis and energy storage. However, the interfacial water is extremely hard to probe due to the interference from bulk water and complex interfacial environments. Herein we report a strategy to explore the adsorption dynamics of electrified interfacial water through combing a dynamic humidity sensing system, the in situ diffuse reflectance infrared Fourier transform spectroscopy, and the density functional theory calculations. By atomically engineering the Ti3C2Tx with atomic Mo substitution of Ti, the water adsorption dynamics on the obtained Mo2TiC2Tx were dramatically enhanced. The Mo2TiC2Tx was demonstrated as an excellent humidity-sensing material with an ultrahigh sensitivity of 1.75 +/- 0.06, fast response (35.9 s), and hysteresis-free properties in 2.7-93 % relative humidity range. This work provides universal strategies to in situ probe and manipulate the electrified interfacial water adsorption dynamics.
引用
收藏
页数：8
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