A fast-response/recovery ZnO hierarchical nanostructure based gas sensor with ultra-high room-temperature output response

2015 ◽  
Vol 206 ◽  
pp. 764-771 ◽  
Author(s):  
Xiaofang Pan ◽  
Xiaojin Zhao ◽  
Jiaqi Chen ◽  
Amine Bermak ◽  
Zhiyong Fan
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
Fast Response ◽  
Output Response ◽  
Hierarchical Nanostructure ◽  
Response Recovery ◽  
Temperature Output

α-Fe2O3 loaded rGO nanosheets based fast response/recovery CO gas sensor at room temperature

2019 ◽  
Vol 465 ◽  
pp. 56-66 ◽  
Author(s):  
Aviru Kumar Basu ◽  
Pankaj Singh Chauhan ◽  
Mohit Awasthi ◽  
Shantanu Bhattacharya
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
Fast Response ◽  
Response Recovery ◽  
Co Gas Sensor ◽  
Co Gas

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

scholarly journals A Novel Type Room Temperature Surface Photovoltage Gas Sensor Device 

2018 ◽  
Author(s):  
Monika Kwoka ◽  
Michal A. Borysiewicz ◽  
Pawel Tomkiewicz ◽  
Anna Piotrowska ◽  
Jacek Szuber
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
Gas Sensing ◽  
Signal To Noise Ratio ◽  
High Sensitivity ◽  
Fast Response ◽  
Surface Photovoltage ◽  
Kelvin Probe ◽  
Sensor Device ◽  
Developed Surface

In this paper a novel type of a highly sensitive gas sensor device based on the surface photovoltage effect is described. The developed surface photovoltage gas sensor is based on a reverse Kelvin probe approach. As the active gas sensing electrode the porous ZnO nanostructured thin films are used deposited by the direct current (DC) reactive magnetron sputtering method exhibiting the nanocoral surface morphology combined with an evident surface nonstoichiometry related to the unintentional surface carbon and water vapor contaminations. Among others, the demonstrated SPV gas sensor device exhibits a high sensitivity of 1 ppm to NO2 with a signal to noise ratio of about 50 and a fast response time of several seconds under the room temperature conditions.

A fast response/recovery ppb-level H2S gas sensor based on porous CuO/ZnO heterostructural tubule via confined effect of absorbent cotton

2019 ◽  
Vol 297 ◽  
pp. 126816 ◽  
Author(s):  
Hui-Bing Na ◽  
Xian-Fa Zhang ◽  
Meng Zhang ◽  
Zhao-Peng Deng ◽  
Xiao-Li Cheng ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Fast Response ◽  
Absorbent Cotton ◽  
Response Recovery ◽  
H2s Gas Sensor

Ultra-efficient room-temperature H2S gas sensor based on NiCo2O4/r-GO nanocomposites

2019 ◽  
Vol 43 (26) ◽  
pp. 10501-10508 ◽  
Author(s):  
Jie Wu ◽  
Ying Yang ◽  
Hui Yu ◽  
Xiangting Dong ◽  
Tingting Wang
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
High Selectivity ◽  
Fast Response ◽  
H2s Gas Sensor

NiCo2O4/r-GO nanocomposites were synthesized successfully; the sensor based on these nanocomposites exhibited a fast response and high selectivity towards H2S at room temperature.

Nanosheets-assembled hollowed-out hierarchical Co3O4 microrods for fast response/recovery gas sensor

2017 ◽  
Vol 249 ◽  
pp. 66-75 ◽  
Author(s):  
Wenhu Tan ◽  
Jianfeng Tan ◽  
Long Li ◽  
Menghan Dun ◽  
Xintang Huang
Keyword(s):  
Gas Sensor ◽  
Fast Response ◽  
Response Recovery

scholarly journals Highly active and porous single-crystal In2O3 nanosheet for NOx gas sensor with excellent response at room temperature

RSC Advances ◽  
2017 ◽  
Vol 7 (53) ◽  
pp. 33419-33425 ◽  
Author(s):  
Li Sun ◽  
Wencheng Fang ◽  
Ying Yang ◽  
Hui Yu ◽  
Tingting Wang ◽  
...  
Keyword(s):  
Detection Limit ◽  
Response Time ◽  
Single Crystal ◽  
Gas Sensor ◽  
Room Temperature ◽  
Fast Response ◽  
Fast Response Time ◽  
Excellent Response ◽  
Highly Active ◽  
Nox Gas Sensor

Porous single-crystal In2O3 nanosheet was well-designed and prepared through calcination after liquid reflux, then exhibited a distinguished response, fast response time to NOx with good selectivity and low detection limit at room temperature.

MWCNT and α-Fe2O3 embedded rGO-nanosheets based hybrid structure for room temperature chloroform detection using fast response/recovery cantilever based sensors

2020 ◽  
Vol 305 ◽  
pp. 127457
Author(s):  
Aviru Kumar Basu ◽  
Amar Nath Sah ◽  
Mayank Manjul Dubey ◽  
Prabhat K. Dwivedi ◽  
Asima Pradhan ◽  
...  
Keyword(s):  
Room Temperature ◽  
Fast Response ◽  
Hybrid Structure ◽  
Response Recovery

Using Palladium Nanocubes on ZnO Nanostructures in Hydrogen Gas Sensor for Fast Response and Recovery Time

2021 ◽  
Vol 21 (4) ◽  
pp. 2495-2499
Author(s):  
Hoang Si Hong ◽  
Tran Vinh Hoang
Keyword(s):  
Gas Sensor ◽  
Recovery Time ◽  
Fast Response ◽  
Hydrogen Gas ◽  
Zno Nanostructures ◽  
Response Recovery ◽  
Sensor Structure ◽  
Recovery Times ◽  
Response And Recovery ◽  
Robust Sensing

We developed a novel sensor structure by synthesizing Pd nanocubes (NCs) decorated on ZnO nanostructures (NSs) applied to resistive-type H2 gas sensor with micro-length in sensing channel. The ZnO NSs were selectively grown between micro-size finger-like interdigital electrodes through microelectromechanical technology. The novel H2 sensor structure with the sensing channel was reduced to micro-size by this proposed method to obtain a sensor with fast response/recovery time. The as-prepared structure exhibited robust sensing performance with a response of 11% at optimal temperature of 150 °C, good linearity, and fast response/recovery time within 10 s. The speed of chemisorption through the diffusion pathway in Pd NCs combined with micro-length in sensing channel in sensor showed fast response and recovery times of 9 and 15 s, respectively, toward 10,000 ppm (1%) H2 at 150 °C. The result showed approximate linearity response in H2 concentration range of 5÷10,000 ppm and a large operating temperature range from room temperature to 200 °C.

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