scholarly journals Nanoparticles Assembled CdIn2O4 Spheres with High Sensing Properties towards n-Butanol

Nanomaterials ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1714 ◽  
Author(s):  
Weiping Liu ◽  
Ximing Zhang ◽  
Zhaofeng Wang ◽  
Ruijian Wang ◽  
Chen Chen ◽  
...  
Keyword(s):  
Detection Limit ◽  
Thermal Treatment ◽  
Gas Sensor ◽  
High Performance ◽  
Solvothermal Method ◽  
Fast Response ◽  
High Response ◽  
Characterization Methods ◽  
Sensing Properties ◽  
Low Detection Limit

Cd/In-glycerate spheres are synthesized through a simple solvothermal method. After thermal treatment, these Cd/In-glycerates can be converted into CdIn2O4 spheres. Many characterization methods were performed to reveal the microstructure and morphology of the CdIn2O4. It was found that pure CdIn2O4 phase was obtained for the Cd/In starting materials at ratios of 1:1.6. The CdIn2O4 spheres are composed by a large number of nanoparticles subunits. The CdIn2O4 sphere-based sensor exhibited a low detection limit (1 ppm), high response (81.20 to 500 ppm n-butanol), fast response (4 s) and recovery (10 s) time, good selectivity, excellent repeatability, and stability at 280 °C. Our findings highlight the possibility to develop a novel gas sensor based on CdIn2O4 for application in n-butanol detection with high performance.

3D porous α-Ni(OH)2 nanostructure interconnected with carbon black as a high-performance gas sensing material for NO2 at room temperature

RSC Advances ◽  
2015 ◽  
Vol 5 (123) ◽  
pp. 101760-101767 ◽  
Author(s):  
Zhenyu Chu ◽  
Hongxin Sun ◽  
He Xu ◽  
Jiao Zhou ◽  
Guo Zhang ◽  
...  
Keyword(s):  
Detection Limit ◽  
Carbon Black ◽  
High Performance ◽  
Room Temperature ◽  
Gas Sensing ◽  
Fast Response ◽  
Sensing Properties ◽  
Low Detection Limit ◽  
Sensing Material

The 3D porous α-Ni(OH)2/carbon black nanostructure composites were fabricated via a simple refluxing method using SDBS as the template. The composites exhibited excellent sensing properties with fast response and low detection limit of NO2 at room temperature.

scholarly journals Construction of MoO3/MoSe2 nanocomposite based gas sensor for low detection limit trimethylamine sensing at room temperature

2021 ◽  
Author(s):  
Lanjuan Zhou ◽  
Qian Mi ◽  
Yingbo Jin ◽  
Tingting Li ◽  
Dongzhi Zhang
Keyword(s):  
Detection Limit ◽  
Gas Sensor ◽  
Room Temperature ◽  
Gas Sensing ◽  
Microstructural Characterization ◽  
Honeycomb Structure ◽  
Gas Sensitivity ◽  
Characterization Methods ◽  
Low Detection Limit ◽  
Sensing Performance

Abstract In this paper, MoO3/MoSe2 n-n heterostructure was constructed for fabricating trimethylamine (TMA) gas sensor by an improved hydrothermal and spin-coating method. The surface morphology and microstructure of the prepared materials were analyzed by XRD, XPS, SEM and TEM characterization methods. The microstructural characterization results demonstrated that the MoO3/MoSe2 heterostructure had been successfully synthesized, in which the MoSe2 had a flower-shaped structure, and MoO3 had a rod-shaped structure. At the same time, the MoSe2 surface exhibited periodic honeycomb structure. The gas-sensitivity experimental results showed that the proposed MoO3/MoSe2 sensor had excellent TMA sensing performance at room temperature, including high response capability, low detection limit (20 ppb), short response/recovery time (12 s/19 s), long-term stability, good repeatability and outstanding selectivity. The heterostructure of MoO3/MoSe2 had made outstanding contributions to the enhanced TMA gas sensing performance at room temperature.

scholarly journals Hydrogen gas sensor based on mesoporous In2O3 with fast response/recovery and ppb level detection limit

2018 ◽  
Vol 43 (50) ◽  
pp. 22746-22755 ◽  
Author(s):  
Zhijie Li ◽  
Shengnan Yan ◽  
Zhonglin Wu ◽  
Hao Li ◽  
Junqiang Wang ◽  
...  
Keyword(s):  
Detection Limit ◽  
Gas Sensor ◽  
Fast Response ◽  
Hydrogen Gas ◽  
Response Recovery

Design of Photoionization Detector Based on the Miniature Gas Chromatography

2013 ◽  
Vol 823 ◽  
pp. 291-295 ◽  
Author(s):  
Shou Chen Chai ◽  
Peng Yang ◽  
Cheng Jia Yang ◽  
Chun Li Cai ◽  
Na Yu
Keyword(s):  
Gas Chromatography ◽  
Detection Limit ◽  
Ionization Chamber ◽  
High Sensitivity ◽  
Fast Response ◽  
Low Detection Limit ◽  
Photoionization Detector ◽  
Key Factor ◽  
The Stability ◽  
Sensitivity Detection

In the space restricted airtight environment that people lives in, detecting harmful gas by miniature gas chromatography is the practical requirement at present, however, PIDs performance is key factor that restrict the application of miniature gas chromatography, the redesign of the detectors gas route in this paper aiming at improve detectors stability observably, and schemed out miniature PID with high sensitivity, low detection limit and fast response. The result of the experiment shows that the detection limit is 0.04ppm, the sensitivity is 101mv/ppm,the stability is 0.04×10-6/24h,meeting the project requirement. Keywords: photoionization detector; ionization chamber; sensitivity; detection limit;

Hollow NiFe2O4 hexagonal biyramids for high-performance n-propanol sensing at low temperature

2018 ◽  
Vol 42 (17) ◽  
pp. 14071-14074 ◽  
Author(s):  
Xue-Zhi Song ◽  
Yu-Lan Meng ◽  
Xi Chen ◽  
Kai-Ming Sun ◽  
Xiao-Feng Wang
Keyword(s):  
Low Temperature ◽  
Gas Sensor ◽  
High Performance ◽  
High Response ◽  
Cyclic Stability

A gas sensor based on hollow NiFe2O4 hexagonal biyramids exhibits high performances, including high response value, good selectivity and cyclic stability towards n-propanol while operating at low temperature.

Mesoporous In2O3 nanocrystals: synthesis, characterization and NOx gas sensor at room temperature

2016 ◽  
Vol 40 (2) ◽  
pp. 1306-1311 ◽  
Author(s):  
Jun Gao ◽  
Hongyuan Wu ◽  
Jiao Zhou ◽  
Liyuan Yao ◽  
Guo Zhang ◽  
...  
Keyword(s):  
Detection Limit ◽  
Gas Sensor ◽  
Room Temperature ◽  
Low Detection Limit ◽  
Nox Gas Sensor ◽  
Sensing Performance

Highly mesoporous In2O3 nanocrystals exhibit excellent sensing performance toward NOx, with a low detection limit of 970 ppb at room temperature.

W18O49/Ti3C2Tx Mxene nanocomposites for highly sensitive acetone gas sensor with low detection limit

2020 ◽  
Vol 304 ◽  
pp. 127274 ◽  
Author(s):  
Shibin Sun ◽  
Mingwei Wang ◽  
Xueting Chang ◽  
Yingchang Jiang ◽  
Dongzhi Zhang ◽  
...  
Keyword(s):  
Detection Limit ◽  
Gas Sensor ◽  
Low Detection Limit ◽  
Highly Sensitive

High-Performance Wearable Strain Sensor Based on Graphene/Cotton Fabric with High Durability and Low Detection Limit

2019 ◽  
Vol 12 (1) ◽  
pp. 1474-1485 ◽  
Author(s):  
Yanjun Zheng ◽  
Yilong Li ◽  
Yujie Zhou ◽  
Kun Dai ◽  
Guoqiang Zheng ◽  
...  
Keyword(s):  
Detection Limit ◽  
Cotton Fabric ◽  
High Performance ◽  
Strain Sensor ◽  
Low Detection Limit ◽  
High Durability

Ultrasensitive and low detection limit of toluene gas sensor based on SnO2-decorated NiO nanostructure

2018 ◽  
Vol 255 ◽  
pp. 3505-3515 ◽  
Author(s):  
Hongyu Gao ◽  
Liupeng Zhao ◽  
Liwei Wang ◽  
Peng Sun ◽  
Huiying Lu ◽  
...  
Keyword(s):  
Detection Limit ◽  
Gas Sensor ◽  
Low Detection Limit
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