Novel gas sensing platform based on a stretchable laser-induced graphene pattern with self-heating capabilities

2020 ◽  
Vol 8 (14) ◽  
pp. 6487-6500 ◽  
Author(s):  
Li Yang ◽  
Ning Yi ◽  
Jia Zhu ◽  
Zheng Cheng ◽  
Xinyang Yin ◽  
...  
Keyword(s):  
Detection Limit ◽  
Low Temperature ◽  
Gas Sensor ◽  
Gas Sensing ◽  
Self Heating ◽  
Low Detection Limit ◽  
Sensing Platform

Laser-induced graphene based gas sensor conformable to skin with low detection limit at low 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.

Co3O4@PEI/Ti3C2Tx MXene nanocomposites for a highly sensitive NOx gas sensor with a low detection limit

2021 ◽  
Author(s):  
Baihe Sun ◽  
He Lv ◽  
Zhuo Liu ◽  
Jue Wang ◽  
Xue Bai ◽  
...  
Keyword(s):  
Detection Limit ◽  
Nitrogen Oxides ◽  
Gas Sensor ◽  
Gas Sensing ◽  
Adsorption Property ◽  
Sensor Material ◽  
Low Detection Limit ◽  
Highly Sensitive ◽  
Nox Gas Sensor ◽  
Sensing Performance

The CoPM-24 gas sensor material showed an excellent gas sensing performance to nitrogen oxides, that mainly attributed to their excellent adsorption property and unique heterostructure.

scholarly journals 100 nm-Gap Fingers Dielectrophoresis Functionalized MOX Gas Sensor Array for Low Temperature VOCs Detection

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 1027
Author(s):  
Luca Francioso ◽  
Pasquale Creti ◽  
Maria Concetta Martucci ◽  
Simonetta Capone ◽  
Antonietta Taurino ◽  
...  
Keyword(s):  
Low Temperature ◽  
Gas Sensor ◽  
Sensor Array ◽  
Gas Sensing ◽  
Enhanced Sensitivity ◽  
Sno2 Nanocrystals ◽  
Gas Sensor Array ◽  
Order Of Magnitude ◽  
Nanogap Electrodes ◽  
Average Size

Present work reports the fabrication process and functional gas sensing tests of a 100 nm-gap fingers DiElectroPhoresis (DEP) functionalized MOX (Metal OXide) gas sensor array for VOCs detection at low temperature. The Internet of Things (IoT) scenario applications of the chemical sensing-enabled mobiles or connected devices are many ranging from indoor air quality to novel breath analyser for personal healthcare monitoring. However, the commercial MOX gas sensors operate at moderate temperatures (200–400 °C) [1], and this limits the mobile and wearable gadgets market penetration. Nanogap devices may represent the alternative devices with enhanced sensitivity even at low or room temperature. A nanogap electrodes MOX gas sensor array functionalized with 5 nm average size SnO2 nanocrystals with positive dielectrophoresis technique is presented. The single sensor active area is 4 × 4 µm2. The devices exhibited about 1 order of magnitude response at 100 °C to 150 ppm of acetone.

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

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

Highly sensitive and low detection limit of ethanol gas sensor based on hollow ZnO/SnO2 spheres composite material

2017 ◽  
Vol 245 ◽  
pp. 551-559 ◽  
Author(s):  
Jiangyang Liu ◽  
Tianshuang Wang ◽  
Boqun Wang ◽  
Peng Sun ◽  
Qiuyue Yang ◽  
...  
Keyword(s):  
Composite Material ◽  
Detection Limit ◽  
Gas Sensor ◽  
Low Detection Limit ◽  
Highly Sensitive

Highly sensitive and low detection limit of resistive NO2 gas sensor based on a MoS2/graphene two-dimensional heterostructures

2019 ◽  
Vol 492 ◽  
pp. 449-454 ◽  
Author(s):  
Hoang Si Hong ◽  
Nguyen Huy Phuong ◽  
Nguyen Thanh Huong ◽  
Nguyen Hoang Nam ◽  
Nguyen Thi Hue
Keyword(s):  
Detection Limit ◽  
Gas Sensor ◽  
Two Dimensional ◽  
Low Detection Limit ◽  
No2 Gas Sensor ◽  
Highly Sensitive

scholarly journals Improved Cl2 sensing characteristics of reduced graphene oxide when decorated with copper phthalocyanine nanoflowers

RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25229-25236 ◽  
Author(s):  
Sanjeev Kumar ◽  
Navdeep Kaur ◽  
Anshul Kumar Sharma ◽  
Aman Mahajan ◽  
R. K. Bedi
Keyword(s):  
Graphene Oxide ◽  
Detection Limit ◽  
Reduced Graphene Oxide ◽  
Room Temperature ◽  
Copper Phthalocyanine ◽  
Gas Sensing ◽  
Sensing Platform ◽  
Reduced Graphene ◽  
Sensing Characteristics

A novel gas sensing platform involving a hybrid of reduced graphene oxide (rGO) sheets with unsubstituted copper phthalocyanine (CuPc) nanoflowers has been explored as a room temperature ppb level chemiresistive chlorine (Cl2) sensor with a detection limit as low as 1.97 ppb.

A nanofluidic device for ultrasensitive and label-free detection of tetracycline in association with γ-cyclodextrin and GO

2021 ◽  
Vol 13 (15) ◽  
pp. 1832-1838
Author(s):  
Jiaxi Cheng ◽  
Fenghua Jiang ◽  
Siqi Zhang
Keyword(s):  
Detection Limit ◽  
Water Samples ◽  
Recovery Rate ◽  
Label Free ◽  
Detection Range ◽  
Low Detection Limit ◽  
Sensing Platform ◽  
Label Free Detection ◽  
Nanofluidic Device

We develop a label-free, sensitive and selective nanochannel sensing platform for detection of TC. The nanosensor provided a low detection limit, a wide detection range and excellent recovery rate in different water samples.

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