Fabrication and design of a toxic gas sensor based on polyaniline/titanium dioxide nanocomposite film by layer-by-layer self-assembly

RSC Advances ◽  
2015 ◽  
Vol 5 (72) ◽  
pp. 58211-58219 ◽  
Author(s):  
Shaoqing Cui ◽  
Jun Wang ◽  
Xinlei Wang
Keyword(s):  
Titanium Dioxide ◽  
Shelf Life ◽  
Gas Sensor ◽  
Self Assembly ◽  
Nanocomposite Film ◽  
Layer By Layer ◽  
Toxic Gases ◽  
Life Evaluation ◽  
Toxic Gas

A QCM gas sensor was fabricated by a self-assembly approach with ultrathin nanocomposite PANI/TiO2. It was demonstrated to be sensitive to toxic gases (10 ppm) and to be effective in shelf-life evaluation.

Experimental and density functional theory investigation of Pt-loaded titanium dioxide/molybdenum disulfide nanohybrid for SO2 gas sensing

2019 ◽  
Vol 43 (12) ◽  
pp. 4900-4907 ◽  
Author(s):  
Dongzhi Zhang ◽  
Maosong Pang ◽  
Junfeng Wu ◽  
Yuhua Cao
Keyword(s):  
Density Functional Theory ◽  
Titanium Dioxide ◽  
Molybdenum Disulfide ◽  
Self Assembly ◽  
High Performance ◽  
Density Functional ◽  
Gas Sensing ◽  
Layer By Layer ◽  
Functional Theory ◽  
So2 Gas

A high-performance sulfur dioxide sensor based on a platinum-loaded titanium dioxide/molybdenum disulfide ternary nanocomposite is synthesized via layer-by-layer self-assembly.

scholarly journals Rh-doped MoSe2 as a toxic gas scavenger: a first-principles study

2019 ◽  
Vol 1 (2) ◽  
pp. 772-780 ◽  
Author(s):  
Hao Cui ◽  
Guozhi Zhang ◽  
Xiaoxing Zhang ◽  
Ju Tang
Keyword(s):  
Gas Sensor ◽  
First Principles ◽  
Potential Application ◽  
Stable Configuration ◽  
First Principles Study ◽  
Toxic Gases ◽  
Toxic Gas

Using first-principles theory, we investigated the most stable configuration for the Rh dopant on a MoSe2 monolayer, and the interaction of the Rh-doped MoSe2 (Rh-MoSe2) monolayer with four toxic gases (CO, NO, NO2 and SO2) to exploit the potential application of the Rh-MoS2 monolayer as a gas sensor or adsorbent.

In Situ Self-Assembled Graphene-Polyaniline Nanocomposite Thin Films for Ammonia Gas Sensor

2014 ◽  
Vol 998-999 ◽  
pp. 63-66
Author(s):  
Ning Jie Guo ◽  
Hui Ling Tai ◽  
Zong Biao Ye ◽  
Guang Zhong Xie
Keyword(s):  
Gas Sensor ◽  
Self Assembly ◽  
Nanocomposite Film ◽  
Graphene Film ◽  
Ammonia Gas ◽  
Assembly Method ◽  
Vis Spectroscopy ◽  
Nanocomposite Thin Films ◽  
Polyaniline Nanocomposite

In this paper, the graphene-polyaniline (PANI) nanocomposite thin film was prepared by the in situ self-assembly method for the ammonia (NH3) gas sensor application, which was characterized by scanning electron microscopy (SEM) and UV-vis spectroscopy. The NH3 sensing performance and mechanism of the nanocomposite film were investigated. The results revealed that the sensor based on graphene-polyaniline nanocomposite film exhibited better sensing properties and restorability than those of single graphene film.

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