Hierarchical spinel-type corn-like MGa2O4 (M = Ni, Co) architectures for selective triethylamine gas sensors

2021 ◽  
Vol 133 ◽  
pp. 105993
Author(s):  
Ping Ma ◽  
Xianliang Li ◽  
Yuchi Zhang ◽  
Le Han ◽  
Yan Xu
Keyword(s):  
Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5413
Author(s):  
Yudong Li ◽  
Zhenyu Yuan ◽  
Fanli Meng

Demands for the detection of harmful gas in daily life have arisen for a period and a gas nano-sensor acting as a kind of instrument that can directly detect gas has been of wide concern. The spinel-type nanomaterial is suitable for the research of gas sensors because of its unique structure. However, the existing instability, higher detection limit, and operating temperature of the spinel materials limit the extension of the spinel material sensor. This paper reviews the research progress of spinel materials in gas sensor technology in recent years and lists the common morphological structures and material sensitization methods in combination with previous works.


2017 ◽  
Vol 16 (2) ◽  
pp. 129-138
Author(s):  
Sung-Joo Hong ◽  
◽  
Il-Hwan Choi ◽  
Yong-Geun Kim ◽  
Woo-Hyun Nam ◽  
...  
Keyword(s):  

2017 ◽  
Vol 16 (1) ◽  
pp. 64-71 ◽  
Author(s):  
Ha-Na Kim ◽  
◽  
Yong-Geun Kim ◽  
Sun-Tae Kim
Keyword(s):  

Author(s):  
Raivo Jaaniso ◽  
Ooi Kiang Tan

2013 ◽  
Vol 133 (6) ◽  
pp. 237-242
Author(s):  
Masahiro Ito ◽  
Tomoya Takeda ◽  
Takaaki Suzuki ◽  
Hidekuni Takao ◽  
Fumikazu Oohira ◽  
...  
Keyword(s):  

2017 ◽  
Vol 9 (5) ◽  
pp. 05008-1-05008-5 ◽  
Author(s):  
Ya. V. Bobitski ◽  
◽  
R. V. Bovhyra ◽  
D. I. Popovych ◽  
S. S. Savka ◽  
...  

Author(s):  
Priya Gupta ◽  
Savita Maurya ◽  
Narendra Kumar Pandey ◽  
Vernica Verma

: This review paper encompasses a study of metal-oxide and their composite based gas sensors used for the detection of ammonia (NH3) gas. Metal-oxide has come into view as an encouraging choice in the gas sensor industry. This review paper focuses on the ammonia sensing principle of the metal oxides. It also includes various approaches adopted for increasing the gas sensitivity of metal-oxide sensors. Increasing the sensitivity of the ammonia gas sensor includes size effects and doping by metal or other metal oxides which will change the microstructure and morphology of the metal oxides. Different parameters that affect the performances like sensitivity, stability, and selectivity of gas sensors are discussed in this paper. Performances of the most operated metal oxides with strengths and limitations in ammonia gas sensing application are reviewed. The challenges for the development of high sensitive and selective ammonia gas sensor are also discussed.


2021 ◽  

Recent progress on the sensing and monitoring of sulfur dioxide in the environment is presented. The sensing materials covered include potentiometric gas sensors, amperometric sensors, optical sensors involving colorimetric and fluorescence changes, sensors based on ionic liquids, semiconducting metal-oxide sensors, photoacoustic detectors and biosensors.


Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1552 ◽  
Author(s):  
Weber ◽  
Graniel ◽  
Balme ◽  
Miele ◽  
Bechelany

Improving the selectivity of gas sensors is crucial for their further development. One effective route to enhance this key property of sensors is the use of selective nanomembrane materials. This work aims to present how metal-organic frameworks (MOFs) and thin films prepared by atomic layer deposition (ALD) can be applied as nanomembranes to separate different gases, and hence improve the selectivity of gas sensing devices. First, the fundamentals of the mechanisms and configuration of gas sensors will be given. A selected list of studies will then be presented to illustrate how MOFs and ALD materials can be implemented as nanomembranes and how they can be implemented to improve the operational performance of gas sensing devices. This review comprehensively shows the benefits of these novel selective nanomaterials and opens prospects for the sensing community.


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