scholarly journals Gas-Sensing Properties of Tin Oxide-Based Volatile Organic Compound Sensors for Total Volatile Organic Compound Gases

2009 ◽  
pp. 251 ◽  
Keyword(s):  
Organic Compound ◽  
Volatile Organic Compound ◽  
Tin Oxide ◽  
Gas Sensing ◽  
Total Volatile ◽  
Total Volatile Organic Compound ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Volatile Organic ◽  
Volatile Organic Compound Sensors

Synthesis and VOC gas sensing properties of Polypyrrole / MoO3 Nanohybrids

2003 ◽  
Vol 785 ◽  
Author(s):  
Kouta Hosono ◽  
Ichiro Matsubara ◽  
Norimitsu Murayama ◽  
Shin Woosuck ◽  
Noriya Izu
Keyword(s):  
Thin Films ◽  
Organic Compound ◽  
Volatile Organic Compound ◽  
Crystallographic Orientation ◽  
Electrical Resistance ◽  
Gas Sensing ◽  
Sodium Ions ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Volatile Organic

ABSTRACTWe have prepared polypyrrole (PPy) / MoO3 nanohybrid thin films and evaluated their volatile organic compound (VOC) gas sensing properties. The (PPy)xMoO3 thin films have been prepared by intercalation reactions of highly oriented MoO3 thin films. Intercalation of hydrated sodium ions successfully proceeded without loosing the crystallographic orientation. The (PPy)xMoO3 thin films was obtained by replacing the hydrated sodium ions with PPy. The (PPy)xMoO3 thin films can detect formaldehyde gas by increasing in their electrical resistance, whereas they showed no response to toluene.

Hydrothermally synthesized CuO based volatile organic compound gas sensor

RSC Advances ◽  
2014 ◽  
Vol 4 (101) ◽  
pp. 57975-57982 ◽  
Author(s):  
Shufeng Xia ◽  
Huichao Zhu ◽  
Haitao Cai ◽  
Jiaqi Zhang ◽  
Jun Yu ◽  
...  
Keyword(s):  
Organic Compound ◽  
Hydrothermal Method ◽  
Gas Sensor ◽  
Volatile Organic Compound ◽  
Single Phase ◽  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Volatile Organic

In the present work, single-phase CuO particles were synthesized by a hydrothermal method and characterized by SEM, TEM and XRD. The gas sensing properties of the CuO based sensor to some representative flammable VOC gases were investigated.

Synthesis of Polypyrrole/MoO3Hybrid Thin Films and Their Volatile Organic Compound Gas-Sensing Properties

2005 ◽  
Vol 17 (2) ◽  
pp. 349-354 ◽  
Author(s):  
Kouta Hosono ◽  
Ichiro Matsubara ◽  
Norimitsu Murayama ◽  
Shin Woosuck ◽  
Noriya Izu
Keyword(s):  
Thin Films ◽  
Organic Compound ◽  
Volatile Organic Compound ◽  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Volatile Organic

Spatial Concentration Variation of Contaminants in a Residential Kitchen and the Effect of Makeup Air System

2012 ◽  
Vol 610-613 ◽  
pp. 1996-1999
Author(s):  
Xin Jia ◽  
Bo Yi
Keyword(s):  
Experimental Data ◽  
Organic Compound ◽  
Volatile Organic Compound ◽  
Simulation Software ◽  
Total Volatile ◽  
Spatial Concentration ◽  
Total Volatile Organic Compound ◽  
Distribution Law ◽  
Volatile Organic ◽  
Simulation Results

In this paper, the experimental data of CO, CO2 and total volatile organic compound (TVOC) concentration in a residential kitchen are presented. Based on them, a simulation software with friendly and simply operating interfaceis is developed on the platform of VC++. The distribution law of the contaminants is studied via the simulation results, and it is obvious that location of accumulation of the contaminants are highly relevant to the location of stove and closer to the walls. An addition natural air makeup system is proposed to improve indoor airenvironment in kitchens, the effection of the air makeup system is analyzed with exergy theory.

scholarly journals Recent Advances in Silicon FET Devices for Gas and Volatile Organic Compound Sensing

Chemosensors ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 260
Author(s):  
Anwesha Mukherjee ◽  
Yossi Rosenwaks
Keyword(s):  
Organic Compound ◽  
Volatile Organic Compound ◽  
Gas Sensing ◽  
Field Effect Transistors ◽  
Medical Diagnostics ◽  
Silicon On Insulator ◽  
Oxide Semiconductor ◽  
Ultra Low Power ◽  
Sensing Properties ◽  
Volatile Organic

Highly sensitive and selective gas and volatile organic compound (VOC) sensor platforms with fast response and recovery kinetics are in high demand for environmental health monitoring, industry, and medical diagnostics. Among the various categories of gas sensors studied to date, field effect transistors (FETs) have proved to be an extremely efficient platform due to their miniaturized form factor, high sensitivity, and ultra-low power consumption. Despite the advent of various kinds of new materials, silicon (Si) still enjoys the advantages of excellent and reproducible electronic properties and compatibility with complementary metal–oxide–semiconductor (CMOS) technologies for integrated multiplexing and signal processing. This review gives an overview of the recent developments in Si FETs for gas and VOC sensing. We categorised the Si FETs into Si nanowire (NW) FETs; planar Si FETs, in which the Si channel is either a part of the silicon on insulator (SOI) or the bulk Si, as in conventional FETs; and electrostatically formed nanowire (EFN) FETs. The review begins with a brief introduction, followed by a description of the Si NW FET gas and VOC sensors. A brief description of the various fabrication strategies of Si NWs and the several functionalisation methods to improve the sensing performances of Si NWs are also provided. Although Si NW FETs have excellent sensing properties, they are far from practical realisation due to the extensive fabrication procedures involved, along with other issues that are critically assessed briefly. Then, we describe planar Si FET sensors, which are much closer to real-world implementation. Their simpler device architecture combined with excellent sensing properties enable them as an efficient platform for gas sensing. The third category, the EFN FET sensors, proved to be another potential platform for gas sensing due to their intriguing properties, which are elaborated in detail. Finally, the challenges and future opportunities for gas sensing are addressed.

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