scholarly journals Gas sensing properties of multiwall carbon nanotubes decorated with rhodium nanoparticles

2011 ◽  
Vol 160 (1) ◽  
pp. 974-980 ◽  
Author(s):  
R. Leghrib ◽  
T. Dufour ◽  
F. Demoisson ◽  
N. Claessens ◽  
F. Reniers ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gas Sensing ◽  
Multiwall Carbon Nanotubes ◽  
Sensing Properties ◽  
Rhodium Nanoparticles ◽  
Gas Sensing Properties ◽  
Multiwall Carbon

Gas sensing properties of tin dioxide coated onto multi-walled carbon nanotubes

2006 ◽  
Vol 497 (1-2) ◽  
pp. 355-360 ◽  
Author(s):  
Yan-Li Liu ◽  
Hai-Feng Yang ◽  
Yu Yang ◽  
Zhi-Min Liu ◽  
Guo-Li Shen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Tin Dioxide ◽  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

scholarly journals Hydrophilicity and carbon chain length effects on the gas sensing properties of chemoresistive, self-assembled monolayer carbon nanotube sensors

2019 ◽  
Vol 10 ◽  
pp. 565-577 ◽  
Author(s):  
Juan Casanova-Cháfer ◽  
Carla Bittencourt ◽  
Eduard Llobet
Keyword(s):  
Carbon Nanotubes ◽  
Nitrogen Dioxide ◽  
Photoelectron Spectroscopy ◽  
Gas Sensing ◽  
Carbon Chain ◽  
Head Group ◽  
Carbon Chain Length ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Self Assembled

Here we describe the development of chemoresistive sensors employing oxygen-plasma-treated, Au-decorated multiwall carbon nanotubes (MWCNTs) functionalized with self-assembled monolayers (SAMs) of thiols. For the first time, the effects of the length of the carbon chain and its hydrophilicity on the gas sensing properties of SAMs formed on carbon nanotubes are studied, and additionally, the gas sensing mechanisms are discussed. Four thiols differing in the length of the carbon chain and in the hydrophobic or hydrophilic nature of the head functional group are studied. Transmission electron microscopy, Raman spectroscopy and X-ray photoelectron spectroscopy are used to analyze the resulting gas-sensitive hybrid films. Among the different nanomaterials tested, short-chain thiols having a hydrophilic head group, self-assembled onto Au-decorated carbon nanotubes were most responsive to nitrogen dioxide and ethanol vapors, even in the presence of ambient humidity. In particular, this nanomaterial was about eight times more sensitive to nitrogen dioxide than bare Au-decorated carbon nanotubes when operated at room temperature. This response enhancement is attributed to the interaction, via strong hydrogen bonding, of the polar molecules tested to the polar surface of hydrophilic thiols. The approach discussed here could be extended further by combining hydrophilic and hydrophobic thiol SAMs in Au-MWCNT sensor arrays as a helpful strategy for tuning sensor response and selectivity. This would make the detection of polar and nonpolar gas species employing low-power gas sensors easier, even under fluctuating ambient moisture conditions.

scholarly journals Gas sensing properties and p-type response of ALD TiO2coated carbon nanotubes

2014 ◽  
Vol 26 (2) ◽  
pp. 024004 ◽  
Author(s):  
Catherine Marichy ◽  
Nicola Donato ◽  
Mariangela Latino ◽  
Marc Georg Willinger ◽  
Jean-Philippe Tessonnier ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
P Type ◽  
Type Response

Gas sensing properties of printed multiwalled carbon nanotubes using the field emission effect

2006 ◽  
Vol 433 (1-3) ◽  
pp. 105-109 ◽  
Author(s):  
Yang Doo Lee ◽  
Woo-Sung Cho ◽  
Seung-IL Moon ◽  
Yun-Hi Lee ◽  
Jai Kyeong Kim ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Field Emission ◽  
Gas Sensing ◽  
Multiwalled Carbon ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Emission Effect

Gas sensing properties of defect-induced single-walled carbon nanotubes

2016 ◽  
Vol 228 ◽  
pp. 688-692 ◽  
Author(s):  
Jaeseong Kim ◽  
Sun-Woo Choi ◽  
Je-Haeng Lee ◽  
Youngchul Chung ◽  
Young Tae Byun
Keyword(s):  
Carbon Nanotubes ◽  
Gas Sensing ◽  
Single Walled Carbon Nanotubes ◽  
Sensing Properties ◽  
Single Walled Carbon ◽  
Gas Sensing Properties ◽  
Walled Carbon Nanotubes

scholarly journals VOC Sensing Properties of MHDA-Functionalized Multiwall Carbon Nanotubes

2016 ◽  
Vol 168 ◽  
pp. 268-271 ◽  
Author(s):  
A. Thamri ◽  
H. Baccar ◽  
C. Struzzi ◽  
C. Bittencourt ◽  
E. Llobet ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwall Carbon Nanotubes ◽  
Sensing Properties ◽  
Multiwall Carbon ◽  
Functionalized Multiwall Carbon Nanotubes
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