scholarly journals Superior Room-Temperature Ammonia Sensing Using a Hydrothermally Synthesized MoS2/SnO2 Composite

ACS Omega ◽  
2021 ◽  
Vol 6 (17) ◽  
pp. 11602-11613
Author(s):  
Sukhwinder Singh ◽  
Raghottam M. Sattigeri ◽  
Suresh Kumar ◽  
Prafulla K. Jha ◽  
Sandeep Sharma
Keyword(s):  
Room Temperature ◽  
Ammonia Sensing

Pseudo n-type behaviour of nickel oxide thin film at room temperature towards ammonia sensing

2021 ◽  
Author(s):  
Kumar Haunsbhavi ◽  
Karuppiah Deva Arun Kumar ◽  
Paolo Mele ◽  
Omar M. Aldossary ◽  
Mohd Ubaidullah ◽  
...  
Keyword(s):  
Thin Film ◽  
Nickel Oxide ◽  
Room Temperature ◽  
Oxide Thin Film ◽  
Ammonia Sensing ◽  
Nickel Oxide Thin Film

Copper Fluoride Doped Polypyrrole for Portable and Enhanced Ammonia Sensing at Room Temperature

2021 ◽  
Vol 6 (31) ◽  
pp. 7829-7837
Author(s):  
Mohsen Salimi ◽  
Fereidoon Rahmani ◽  
Seyed Mohammad R. M. Hosseini
Keyword(s):  
Room Temperature ◽  
Ammonia Sensing

Porous and Nanostructured CuBr Networks for Selective Ammonia Sensing at Room-Temperature

2021 ◽  
Vol MA2021-01 (63) ◽  
pp. 1701-1701
Author(s):  
Andreas T. Guntner ◽  
Markus Wied ◽  
Nicolay J Pineau ◽  
Sotiris E. Pratsinis
Keyword(s):  
Room Temperature ◽  
Ammonia Sensing

Enhancement in Room Temperature Ammonia Sensing Properties of Naphthalene Diimides through Core Expansion

2022 ◽  
Author(s):  
Salman Ali ◽  
Mohammed Jameel ◽  
Glenn Oldham ◽  
Akhil Gupta ◽  
Mahnaz Shafiei ◽  
...  
Keyword(s):  
Active Layer ◽  
Organic Semiconductor ◽  
Room Temperature ◽  
Ammonia Gas ◽  
Sensing Properties ◽  
Ammonia Sensing ◽  
Naphthalene Diimide ◽  
Naphthalene Diimides

An amperometric type sensor whose active layer is derived from a tetra core-substituted organic semiconductor, naphthalene diimide (NDI-CN4), has been evaluated for ammonia gas (3, 6, 25 and 50 ppm)...

scholarly journals Self-Assembled Vanadium Oxide Nanoflakes for p-Type Ammonia Sensors at Room Temperature

Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 317 ◽  
Author(s):  
Haihong Yin ◽  
Changqing Song ◽  
Zhiliang Wang ◽  
Haibao Shao ◽  
Yi Li ◽  
...  
Keyword(s):  
Vanadium Oxide ◽  
Room Temperature ◽  
Gas Sensing ◽  
Electron Microscopies ◽  
Ammonia Sensing ◽  
Transmission Electron ◽  
Order Of Magnitude ◽  
Self Assembled ◽  
Ammonia Sensors ◽  
P Type

VO2(B), VO2(M), and V2O5 are the most famous compounds in the vanadium oxide family. Here, their gas-sensing properties were investigated and compared. VO2(B) nanoflakes were first self-assembled via a hydrothermal method, and then VO2(M) and V2O5 nanoflakes were obtained after a heat-phase transformation in nitrogen and air, respectively. Their microstructures were evaluated using X-ray diffraction and scanning and transmission electron microscopies, respectively. Gas sensing measurements indicated that VO2(M) nanoflakes were gas-insensitive, while both VO2(B) and V2O5 nanoflakes were highly selective to ammonia at room temperature. As ammonia sensors, both VO2(B) and V2O5 nanoflakes showed abnormal p-type sensing characteristics, although vanadium oxides are generally considered as n-type semiconductors. Moreover, V2O5 nanoflakes exhibited superior ammonia sensing performance compared to VO2(B) nanoflakes, with one order of magnitude higher sensitivity, a shorter response time of 14–22 s, and a shorter recovery time of 14–20 s. These characteristics showed the excellent potential of V2O5 nanostructures as ammonia sensors.

scholarly journals SnO2thin films used as ammonia sensing layers at room temperature

2013 ◽  
Vol 5 ◽  
pp. 04010 ◽  
Author(s):  
A. Gaddari ◽  
M. Amjoud ◽  
F. Berger ◽  
J.B. Sanchez ◽  
M. Lahcini ◽  
...  
Keyword(s):  
Room Temperature ◽  
Ammonia Sensing
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