Flexible and lightweight Ti3C2Tx MXene@Pd colloidal nanoclusters paper film as novel H2 sensor

被引：116

作者：

Zhu, Zhengyou ^{[1
,2
]}

Liu, Congcong ^{[3
]}

Jiang, Fengxing ^{[3
]}

Liu, Jing ^{[3
]}

Ma, Xiumei ^{[3
]}

Liu, Peng ^{[3
]}

Xu, Jingkun ^{[3
,4
]}

Wang, Lei ^{[1
]}

Huang, Rui ^{[5
]}

机构：

[1] Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen Key Lab Polymer Sci & Technol, Shenzhen 518060, Peoples R China

[2] Shenzhen Univ, Coll Phys & Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China

[3] Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Organ Chem, Nanchang 330013, Jiangxi, Peoples R China

[4] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Qingdao 266042, Peoples R China

[5] Hanshan Normal Univ, Dept Phys & Elect Engn, Chaozhou 521041, Guangdong, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2020年 / 399卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Ti3C2Tx MXene; Pd colloidal nanoclusters; Flexible film; H-2; sensor; HYDROGEN SENSORS; BIMETALLIC CLUSTERS; PALLADIUM; NANOFIBERS; NANOPARTICLES; PERFORMANCE; FRAMEWORK; CATALYSTS; SURFACE; FASTER;

D O I：

10.1016/j.jhazmat.2020.123054

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Rational and smart design of hydrogen (H-2) sensors especially those featured with flexibility and light weight is highly desirable, to meet the requirements for future development of portable H-2 sensors. In this work, we demonstrate a novel paper film H-2 sensor employing Ti3C2Tx MXene nanosheets with Pd colloidal nanoclusters (Pd CNC) as the activator. The MXene@ Pd CNC paper film was facilely prepared via an all-colloidal solution-based vacuum-filtration process, which is flexible, light-weight and endowed with a compact, glossy surface. The as-obtained MXene@ Pd CNC film sensor displayed moderate H-2 response at room temperature at either flat or bent states. Specially, the MXene@ Pd CNC film sensor delivered a response time of (32 +/- 7) s and a sensitivity of S = (23.0 +/- 4.0)%@4% H-2. In addition, the MXene@Pd CNC sensor enabled "in-situ-mode" H-2 detection directly along a piece of paper film with desired size. The strong H-2 adsorption into lattice of ultrafine Pd CNC altered the work function thus induced the electron doping of MXene, which explained the gas sensing mechanism. Therefore, the facilely designed MXene@Pd CNC sensor is believed to contribute to development of future portable and wearable sensing electronics.

引用

页数：8

共 52 条

[51] Flexible 3D Porous MXene Foam for High-Performance Lithium-Ion Batteries [J].