Nanoparticle cluster gas sensor: Pt activated SnO2 nanoparticles for NH3 detection with ultrahigh sensitivity

Nanoscale ◽  
2015 ◽  
Vol 7 (36) ◽  
pp. 14872-14880 ◽  
Author(s):  
Xu Liu ◽  
Nan Chen ◽  
Bingqian Han ◽  
Xuechun Xiao ◽  
Gang Chen ◽  
...  

Pt activated SnO2 nanoparticle clusters were synthesized by a simple solvothermal method for use in highly sensitive ammonia gas sensors.

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.


Author(s):  
Aleksei A. Parfenov ◽  
Olga R. Yamilova ◽  
Lavrenty G. Gutsev ◽  
Diana K. Sagdullina ◽  
Artyom V. Novikov ◽  
...  

We report gas sensors based on formamidinium lead chloride (FAPbCl3), which demonstrate a strong and outstandingly selective response towards ammonia due to the specific interaction of the halide vacancies with NH3.


2014 ◽  
Vol 6 (7) ◽  
pp. 5319-5326 ◽  
Author(s):  
Koichi Suematsu ◽  
Yuka Shin ◽  
Zhongqiu Hua ◽  
Kohei Yoshida ◽  
Masayoshi Yuasa ◽  
...  

RSC Advances ◽  
2018 ◽  
Vol 8 (72) ◽  
pp. 41280-41287 ◽  
Author(s):  
Bin Wang ◽  
Xiaolin Wang ◽  
Xiaocheng Li ◽  
Zhijiang Guo ◽  
Xin Zhou ◽  
...  

Three new room temperature reversible ammonia gas sensors were fabricated using PcCo/rGO hybrids with cost-efficient, highly sensitive and stable sensing performance.


2012 ◽  
Vol 14 (6) ◽  
pp. 1565 ◽  
Author(s):  
Maria Chiesa ◽  
Federica Rigoni ◽  
Maria Paderno ◽  
Patrizia Borghetti ◽  
Giovanna Gagliotti ◽  
...  

Sensors ◽  
2017 ◽  
Vol 17 (9) ◽  
pp. 2070 ◽  
Author(s):  
Bian Wu ◽  
Xingfei Zhang ◽  
Beiju Huang ◽  
Yutong Zhao ◽  
Chuantong Cheng ◽  
...  

Author(s):  
Vladimiras Bondarenka ◽  
R. Sereika ◽  
A. Mironas ◽  
S. Grebinskij

The various gas sensors were designed for detection of different gases in the air using different oxides and impurities [1-3]. For example the manufacturing of ammonia sensors on the basis of CuxS-micro-porous-Si structure includes manufacture of micro-porous silicon, drawing on it of SiO2 isolating layer, and then the CuxS layer [4, 5]. The special equipment for all these processes is needed. More usable method for sensor production is so-called soft chemistry or sol–gel synthesis [6, 7].


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