Gas Sensors: Room-Temperature Gas Sensing Based on Electron Transfer between Discrete Tin Oxide Nanocrystals and Multiwalled Carbon Nanotubes (Adv. Mater. 24/2009)

2009 ◽  
Vol 21 (24) ◽  
pp. NA-NA
Author(s):  
Ganhua Lu ◽  
Leonidas E. Ocola ◽  
Junhong Chen
Keyword(s):  
Carbon Nanotubes ◽  
Electron Transfer ◽  
Multiwalled Carbon Nanotubes ◽  
Gas Sensors ◽  
Tin Oxide ◽  
Room Temperature ◽  
Gas Sensing ◽  
Multiwalled Carbon

Excellent ambipolar gas sensing response of Eu[Pc(OC4H9)8]2/acidified multiwalled carbon nanotubes hybrid at room temperature

2019 ◽  
Vol 23 (11n12) ◽  
pp. 1455-1462 ◽  
Author(s):  
Kiran Abdullah ◽  
Xia Kong ◽  
Muhammad Imran ◽  
Ghulam Mustafa ◽  
Yanli Chen
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Hybrid Material ◽  
Room Temperature ◽  
Gas Sensing ◽  
Multiwalled Carbon ◽  
Text Type ◽  
Double Decker ◽  
Sandwich Type ◽  
The Eu

A new hybrid material has been developed by mixing a sandwich-type double-decker, Eu[Pc(OC4H9)8]2 = 2,3,9,10,16,17,23,24-octabutoxyphthalocyaninate] with acidified multiwalled carbon nanotubes (aMWCNTs) through non-covalent interactions. The UV-vis spectrum, X-ray diffraction and scanning electron microscope have been employed to reveal the [Formula: see text]-aggregate mode and optimized morphology of Eu[Pc(OC4H9)8]2 molecules in the Eu[Pc(OC4H9)8]2/aMWCNTs hybrid material. The gas-sensing devices based on this hybrid material are fabricated by a simple solvent-processing quasi-Langmuir–Shäfer (QLS) progress. The [Formula: see text]-type and [Formula: see text]-type response is shown by the Eu[Pc(OC4H9)8]2/aMWCNTs hybrid film at room temperature. The detection limit of the hybrid for ammonia and nitrogen dioxide gas is 0.5 ppm and 0.3 ppm, respectively.

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