A fast response & recovery acetone gas sensor based on BiFeO3 nanomaterials with high sensitivity and low detection limit

2017 ◽  
Vol 29 (3) ◽  
pp. 2193-2200 ◽  
Author(s):  
Yamei Zhang ◽  
Hongxiang Xu ◽  
Songtao Dong ◽  
Ruqu Han ◽  
Xiaomei Liu ◽  
...  
Keyword(s):  
Detection Limit ◽  
Gas Sensor ◽  
High Sensitivity ◽  
Fast Response ◽  
Low Detection Limit ◽  
Response Recovery

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;

High sensitivity and ultra-low detection limit of chlorine gas sensor based on In2O3 nanosheets by a simple template method

2020 ◽  
Vol 305 ◽  
pp. 127456 ◽  
Author(s):  
Jiangwei Ma ◽  
Huiqing Fan ◽  
Weiming Zhang ◽  
Jianan Sui ◽  
Chao Wang ◽  
...  
Keyword(s):  
Detection Limit ◽  
Gas Sensor ◽  
High Sensitivity ◽  
Template Method ◽  
Low Detection Limit ◽  
Chlorine Gas

scholarly journals Fabrication of Lettuce-Like ZnO Gas Sensor with Enhanced H2S Gas Sensitivity

Crystals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 145 ◽  
Author(s):  
Ziyang Yu ◽  
Jie Gao ◽  
Longxiao Xu ◽  
Tianyu Liu ◽  
Yueying Liu ◽  
...  
Keyword(s):  
Detection Limit ◽  
Gas Sensor ◽  
Recovery Time ◽  
High Sensitivity ◽  
Fast Response ◽  
Chemical Compositions ◽  
Gas Sensitivity ◽  
Response Characteristics ◽  
One Step ◽  
H2s Detection

In this work, a lettuce-like ZnO gas sensor with high sensitivity for H2S detection was successfully fabricated by a one-step hydrothermal method. Characterization analysis of the phases, crystallinities, morphology, and chemical compositions indicated that lettuce-like ZnO has a lettuce-like microsphere structure composed of wurtzite hexagonal ZnO sheets. A gas sensitivity test of the lettuce-like ZnO showed that the sensor had a high H2S response (113.04 for 100 ppm H2S) and H2S selectivity. The lettuce-like ZnO sensor has fast response characteristics while maintaining high sensitivity, and has a response time as low as 15 seconds and a recovery time of 90 seconds, and the detection limit reaches 1 ppm. The sensitive mechanism of lettuce-like ZnO sensor to H2S is also discussed.

scholarly journals A fast response & recovery H2S gas sensor based on α-Fe2O3 nanoparticles with ppb level detection limit

2015 ◽  
Vol 300 ◽  
pp. 167-174 ◽  
Author(s):  
Zhijie Li ◽  
Yanwu Huang ◽  
Shouchao Zhang ◽  
Weimei Chen ◽  
Zhong Kuang ◽  
...  
Keyword(s):  
Detection Limit ◽  
Gas Sensor ◽  
Fast Response ◽  
Fe2o3 Nanoparticles ◽  
Response Recovery ◽  
H2s Gas Sensor

Sea urchin-like SnO2/Fe2O3 microspheres for an ethanol gas sensor with high sensitivity and fast response/recovery

2017 ◽  
Vol 28 (13) ◽  
pp. 9969-9973 ◽  
Author(s):  
Han Wang ◽  
Shiyuan Wei ◽  
Fengqin Zhang ◽  
Yu Li ◽  
Li Liu ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Sea Urchin ◽  
High Sensitivity ◽  
Fast Response ◽  
Response Recovery

Butane detection: W-doped TiO2 nanoparticles for a butane gas sensor with high sensitivity and fast response/recovery

RSC Advances ◽  
2015 ◽  
Vol 5 (117) ◽  
pp. 96539-96546 ◽  
Author(s):  
Xu Liu ◽  
Kaimeng Pan ◽  
Lihong Wang ◽  
Chengjun Dong ◽  
Xuechun Xiao ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Gas Sensor ◽  
Sol Gel ◽  
High Sensitivity ◽  
Fast Response ◽  
Doped Tio2 ◽  
Response Recovery ◽  
Response Performance ◽  
Gas Response

Well crystallized W-doped anatase TiO2 nanoparticles synthesized by a simple non-aqueous sol–gel route were applied as a sensing layer for a butane gas sensor and showed good gas response performance for butane gas.

A novel FRET-based fluorescent probe for the selective detection of hydrogen sulfide (H2S) and its application for bioimaging

2018 ◽  
Vol 6 (30) ◽  
pp. 4903-4908 ◽  
Author(s):  
Qi Zhao ◽  
Fangjun Huo ◽  
Jin Kang ◽  
Yongbin Zhang ◽  
Caixia Yin
Keyword(s):  
Hydrogen Sulfide ◽  
Detection Limit ◽  
Fluorescent Probe ◽  
Nude Mice ◽  
High Sensitivity ◽  
Fast Response ◽  
Living Cells ◽  
Selective Detection ◽  
Low Detection Limit ◽  
Sensitivity And Selectivity

Herein, our group developed a fast response fluorescent probe (Flu-N3) for H2S on the basis of the 7-amino-4-methylcoumarin and fluorescein FRET system with high sensitivity and selectivity and a low detection limit of 0.031 μM. Moreover, the probe was successfully applied to image exogenous and endogenous H2S in living cells and nude mice.

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.

Formaldehyde detection: SnO2 microspheres for formaldehyde gas sensor with high sensitivity, fast response/recovery and good selectivity

2017 ◽  
Vol 238 ◽  
pp. 264-273 ◽  
Author(s):  
Yuxiu Li ◽  
Nan Chen ◽  
Dongyang Deng ◽  
Xinxin Xing ◽  
Xuechun Xiao ◽  
...  
Keyword(s):  
Gas Sensor ◽  
High Sensitivity ◽  
Fast Response ◽  
Response Recovery
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