Room-temperature high-sensitivity H2S gas sensor based on dendritic ZnO nanostructures with macroscale in appearance

2008 ◽  
Vol 103 (10) ◽  
pp. 104305 ◽  
Author(s):  
N. Zhang ◽  
Ke Yu ◽  
Q. Li ◽  
Z. Q. Zhu ◽  
Q. Wan
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
High Sensitivity ◽  
Zno Nanostructures ◽  
H2s Gas Sensor

A highly sensitive room temperature H2S gas sensor based on SnO2 multi-tube arrays bio-templated from insect bristles

2015 ◽  
Vol 44 (17) ◽  
pp. 7911-7916 ◽  
Author(s):  
Junlong Tian ◽  
Feng Pan ◽  
Ruiyang Xue ◽  
Wang Zhang ◽  
Xiaotian Fang ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Tin Oxide ◽  
Room Temperature ◽  
High Sensitivity ◽  
Highly Sensitive ◽  
Tube Arrays ◽  
H2s Gas Sensor ◽  
Parallel Effect

A tin oxide multi-tube array with a parallel effect was fabricated, which exhibited high sensitivity to H2S gas at room temperature.

Porous ZnO/rGO Nanosheet‐Based NO 2 Gas Sensor with High Sensitivity and ppb‐Level Detection Limit at Room Temperature

2021 ◽  
pp. 2101511
Author(s):  
Ziwei Chen ◽  
Haojie Guo ◽  
Fusheng Zhang ◽  
Xiaowen Li ◽  
Jiabing Yu ◽  
...  
Keyword(s):  
Detection Limit ◽  
Gas Sensor ◽  
Room Temperature ◽  
High Sensitivity

Exploiting Free-Standing p-CuO/n-TiO2 Nanochannels as a Flexible Gas Sensor with High Sensitivity for H2S at Room Temperature

ACS Sensors ◽  
2021 ◽  
Vol 6 (9) ◽  
pp. 3387-3397
Author(s):  
Haoxuan He ◽  
Chenxi Zhao ◽  
Jing Xu ◽  
Kuanzhi Qu ◽  
Zhen Jiang ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
High Sensitivity ◽  
Free Standing

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.

scholarly journals Ammonia Gas Detection by Tannic Acid Functionalized and Reduced Graphene Oxide at Room Temperature

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Sweejiang Yoo ◽  
Xin Li ◽  
Yuan Wu ◽  
Weihua Liu ◽  
Xiaoli Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Gas Sensor ◽  
Tannic Acid ◽  
Room Temperature ◽  
Gas Sensing ◽  
High Sensitivity ◽  
Gas Detection ◽  
Ammonia Gas ◽  
Reduced Graphene

Reduced graphene oxide (rGO) based chemiresistor gas sensor has received much attention in gas sensing for high sensitivity, room temperature operation, and reversible. Here, for the first time, we present a promising chemiresistor for ammonia gas detection based on tannic acid (TA) functionalized and reduced graphene oxide (rGOTA functionalized). Green reductant of TA plays a major role in both reducing process and enhancing the gas sensing properties ofrGOTA functionalized. Our results showrGOTA functionalizedonly selective to ammonia with excellent respond, recovery, respond time, and recovery times.rGOTA functionalizedelectrical resistance decreases upon exposure to NH3where we postulated that it is due to n-doping by TA and charge transfer betweenrGOTA functionalizedand NH3through hydrogen bonding. Furthermore,rGOTA functionalizedhinders the needs for stimulus for both recovery and respond. The combination of greener sensing material and simplicity in overall sensor design provides a new sight for green reductant approach of rGO based chemiresistor 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.

Nanocomposite modified optical fiber: A room temperature, selective H2S gas sensor: Studies using ZnO-PMMA

2017 ◽  
Vol 695 ◽  
pp. 2091-2096 ◽  
Author(s):  
Rohini Kitture ◽  
Dnyandeo Pawar ◽  
Ch.N. Rao ◽  
Ravi Kant Choubey ◽  
S.N. Kale
Keyword(s):  
Optical Fiber ◽  
Gas Sensor ◽  
Room Temperature ◽  
H2s Gas Sensor

scholarly journals Fabrication of H2S Gas Sensor Based on Ppy/CuO and Ppy/SnO2 Nanocomposites at Room Temperature

2020 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
khalid kabel ◽  
Ahmed Al-Sabagh ◽  
Tamer Sharara ◽  
abdelfattah badawi ◽  
Adel Abdel-Rahman ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
H2s Gas Sensor

A high-sensitivity H2S gas sensor based on optimized ZnO-ZnS nano-heterojunction sensing material

2020 ◽  
Vol 31 (8) ◽  
pp. 2050-2054 ◽  
Author(s):  
Pei Ding ◽  
Dongsheng Xu ◽  
Nan Dong ◽  
Ying Chen ◽  
Pengcheng Xu ◽  
...  
Keyword(s):  
Gas Sensor ◽  
High Sensitivity ◽  
Sensing Material ◽  
H2s Gas Sensor
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