文献类型：期刊文献

英文题名：Humidity sensing based strategy for in situ probing and manipulating electrified interfacial water adsorption dynamics

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

年份：2023

卷号：454

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20224613103805);WOS:【SCI-EXPANDED(收录号:WOS:000896963300005)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant. No. 52105145) and the Fundamental Research Funds for the Central Universities. The authors would like to thank Prof. Sheng Dai and Dr. Pengfei Tian at the East China University of Science and Technology (ECUST) , Shanghai, PR China, for the assistance in TEM characterization and DFT analysis, respectively.

语种：英文

外文关键词：Electrified interfacial water adsorption; Surface science; MXenes; Humidity sensing

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.