Controlled Carbon Doping in Anatase TiO2 (101) Facets: Superior Trace-Level Ethanol Gas Sensor Performance and Adsorption Kinetics

2019 ◽  
Vol 6 (4) ◽  
pp. 1801714 ◽  
Author(s):  
Appu Vengattoor Raghu ◽  
Karthikeyan K. Karuppanan ◽  
Biji Pullithadathil
Keyword(s):  
Gas Sensor ◽  
Adsorption Kinetics ◽  
Anatase Tio2 ◽  
Carbon Doping ◽  
Trace Level ◽  
Sensor Performance

High gas sensor performance of WO3 nanofibers prepared by electrospinning

2021 ◽  
Vol 864 ◽  
pp. 158745
Author(s):  
Paulo V. Morais ◽  
Pedro H. Suman ◽  
Ranilson A. Silva ◽  
Marcelo O. Orlandi
Keyword(s):  
Gas Sensor ◽  
Sensor Performance

Effects of carbon doping and vacancy defect on the magnetism of anatase TiO2

2019 ◽  
Vol 383 (2-3) ◽  
pp. 186-195 ◽  
Author(s):  
Qingyu Hou ◽  
Wenling Li ◽  
Cong Li ◽  
Xiaofang Jia ◽  
Chunwang Zhao
Keyword(s):  
Vacancy Defect ◽  
Anatase Tio2 ◽  
Carbon Doping

scholarly journals A Novel Trace-Level Ammonia Gas Sensing Based on Flexible PAni-CoFe2O4 Nanocomposite Film at Room Temperature

Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3077
Author(s):  
Rima D. Alharthy ◽  
Ahmed Saleh
Keyword(s):  
Room Temperature ◽  
Gas Sensing ◽  
Oxidative Polymerization ◽  
Portable Devices ◽  
Trace Level ◽  
Humidity Effect ◽  
Sensor Performance ◽  
Wearable Electronic ◽  
Relative Humidity Effect

In this study, we developed a new chemi-resistive, flexible and selective ammonia (NH3) gas sensor. The sensor was prepared by depositing thin film of polyaniline-cobalt ferrite (PAni-CoFe2O4) nanocomposite on flexible polyethylene terephthalate (PET) through an in situ chemical oxidative polymerization method. The prepared PAni-CoFe2O4 nanocomposite and flexible PET-PAni-CoFe2O4 sensor were evaluated for their thermal stability, surface morphology and materials composition. The response to NH3 gas of the developed sensor was examined thoroughly in the range of 1–50 ppm at room temperature. The sensor with 50 wt% CoFe2O4 NPs content showed an optimum selectivity to NH3 molecules, with a 118.3% response towards 50 ppm in 24.3 s response time. Furthermore, the sensor showed good reproducibility, ultra-low detection limit (25 ppb) and excellent flexibility. In addition, the relative humidity effect on the sensor performance was investigated. Consequently, the flexible PET-PAni-CoFe2O4 sensor is a promising candidate for trace-level on-site sensing of NH3 in wearable electronic or portable devices.

Unraveling Hydrogen Adsorption Kinetics of Bimetallic Au–Pt Nanoisland-Functionalized Carbon Nanofibers for Room-Temperature Gas Sensor Applications

2020 ◽  
Vol 124 (13) ◽  
pp. 7144-7155 ◽  
Author(s):  
Keerthi G. Nair ◽  
Vishnuraj Ramakrishnan ◽  
Rajesh Unnathpadi ◽  
Karthikeyan. K. Karuppanan ◽  
Biji Pullithadathil
Keyword(s):  
Gas Sensor ◽  
Carbon Nanofibers ◽  
Adsorption Kinetics ◽  
Room Temperature ◽  
Hydrogen Adsorption ◽  
Sensor Applications ◽  
Kinetics Of
Sign in / Sign up

Export Citation Format

Share Document