Highly responsive hydrogen gas sensing by partially reduced graphite oxide thin films at room temperature

Carbon ◽  
2012 ◽  
Vol 50 (11) ◽  
pp. 4061-4067 ◽  
Author(s):  
Jianwei Wang ◽  
Youngreal Kwak ◽  
In-yeal Lee ◽  
Sunglyul Maeng ◽  
Gil-Ho Kim
Keyword(s):  
Thin Films ◽  
Graphite Oxide ◽  
Room Temperature ◽  
Gas Sensing ◽  
Hydrogen Gas ◽  
Oxide Thin Films ◽  
Reduced Graphite Oxide

scholarly journals Sensing mechanism of an optimized room temperature optical hydrogen gas sensor made of zinc oxide thin films

2020 ◽  
Vol 9 (5) ◽  
pp. 10624-10634
Author(s):  
Siti Nor Aliffah Mustaffa ◽  
Nurul Assikin Ariffin ◽  
Ahmed Lateef Khalaf ◽  
Mohd. Hanif Yaacob ◽  
Nizam Tamchek ◽  
...  
Keyword(s):  
Thin Films ◽  
Zinc Oxide ◽  
Gas Sensor ◽  
Room Temperature ◽  
Hydrogen Gas ◽  
Oxide Thin Films ◽  
Sensing Mechanism

Hydrogen Gas Sensing Characterizations Based on Nanocrystalline SnO2 Thin Films Grown on SiO2/Si and Al2O3 Substrates

2017 ◽  
Vol 268 ◽  
pp. 244-248
Author(s):  
Abu Hassan Haslan ◽  
Imad Hussein Kadhim
Keyword(s):  
Thin Films ◽  
Room Temperature ◽  
Gas Sensing ◽  
Sol Gel ◽  
Hydrogen Gas ◽  
Rutile Structure ◽  
Nanoparticle Distribution ◽  
Si Substrates ◽  
Coating Method ◽  
Different Temperatures

High-quality nanocrystalline (NC) SnO2 thin films were grown on SiO2/Si and Al2O3 substrates using sol–gel spin coating method. The structural properties, surface morphologies and gas sensing properties of the NC SnO2 were investigated. XRD measurements showed a tetragonal rutile structure and the diffraction peaks for NC SnO2 thin films grown on Al2O3 substrates outperformed those of NC SnO2 films grown on SiO2/Si substrates. The surface morphology of the annealed SnO2 thin films at 500 °C appeared as polycrystalline with uniform nanoparticle distribution. Hydrogen (H2) gas sensing performance of the NC SnO2 was examined for H2 concentrations ranging from 150 ppm to 1000 ppm at different temperatures (room temperature, 75 and 125 °C) for over 50 min. The room temperature sensitivities for H2 gas sensors based on NC SnO2 thin films grown on Al2O3 and SiO2/Si substrates was 2570% and 600%, respectively upon exposure to 1000 ppm of H2 gas. While the sensitivity values at 125 °C increased to 9200% and 1950%, respectively.

scholarly journals Correlation between Microstructure of Copper Oxide Thin Films and its Gas Sensing Performance at Room Temperature

2016 ◽  
Vol 20 ◽  
pp. 45-51 ◽  
Author(s):  
Nafarizal Nayan ◽  
Mohd Zainizan Sahdan ◽  
Low Jia Wei ◽  
Mohd Khairul Ahmad ◽  
Jais Lias ◽  
...  
Keyword(s):  
Thin Films ◽  
Copper Oxide ◽  
Room Temperature ◽  
Gas Sensing ◽  
Oxide Thin Films ◽  
Sensing Performance

scholarly journals Multi-Walled Carbon Nanotube-Doped Tungsten Oxide Thin Films for Hydrogen Gas Sensing

Sensors ◽  
2010 ◽  
Vol 10 (8) ◽  
pp. 7705-7715 ◽  
Author(s):  
Chatchawal Wongchoosuk ◽  
Anurat Wisitsoraat ◽  
Ditsayut Phokharatkul ◽  
Adisorn Tuantranont ◽  
Teerakiat Kerdcharoen
Keyword(s):  
Thin Films ◽  
Carbon Nanotube ◽  
Tungsten Oxide ◽  
Gas Sensing ◽  
Hydrogen Gas ◽  
Oxide Thin Films ◽  
Multi Walled Carbon Nanotube ◽  
Tungsten Oxide Thin Films
Sign in / Sign up

Export Citation Format

Share Document