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.

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.

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.

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

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

Highly sensitive and low detection limit of acetone gas sensor based on porous YbFeO3 nanocrystallines

2021 ◽  
pp. 138925
Author(s):  
Fanpu Meng ◽  
Jinyong Hu ◽  
Can Liu ◽  
Yuming Tan ◽  
Yong Zhang
Keyword(s):  
Detection Limit ◽  
Gas Sensor ◽  
Low Detection Limit ◽  
Highly Sensitive

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.

One-step synthesis of flower-shaped WO3 nanostructures for a high-sensitivity room-temperature NOx gas sensor

RSC Advances ◽  
2016 ◽  
Vol 6 (108) ◽  
pp. 106880-106886 ◽  
Author(s):  
Wencheng Fang ◽  
Ying Yang ◽  
Hui Yu ◽  
Xiangting Dong ◽  
Tingting Wang ◽  
...  
Keyword(s):  
Detection Limit ◽  
Room Temperature ◽  
Gas Sensing ◽  
High Sensitivity ◽  
Facile Hydrothermal Method ◽  
Short Response Time ◽  
One Step ◽  
Wo3 Nanostructures ◽  
Nox Gas Sensor ◽  
Sensing Performance

Flower-shaped WO3 nanoparticles were successfully synthesized by using a facile hydrothermal method. These particles exhibited excellent room-temperature NOx gas-sensing performance with high sensitivity, short response time and low detection limit.

An ultra-highly sensitive and selective self-enhanced AIECL sensor for public security early warning in a nuclear emergency via a co-reactive group poisoning mechanism

2021 ◽  
Author(s):  
Ziyu Wang ◽  
Meiyun Xu ◽  
Nan Zhang ◽  
Jian-Bin Pan ◽  
Xinqi Wu ◽  
...  
Keyword(s):  
Detection Limit ◽  
Early Warning ◽  
High Selectivity ◽  
Public Security ◽  
Reactive Group ◽  
Low Detection Limit ◽  
Highly Sensitive ◽  
Vapor Sensors ◽  
Nuclear Emergency

A mechanism of co-reactive group poisoning (CGP) was discovered for designing efficient I2 vapor sensors for early warning of a nuclear emergency, which give an ultra-low detection limit of 0.13 ppt as well as high selectivity.

scholarly journals Gold and ZnO-Based Metal-Semiconductor Network for Highly Sensitive Room-Temperature Gas Sensing

Sensors ◽  
2019 ◽  
Vol 19 (18) ◽  
pp. 3815
Author(s):  
Renyun Zhang ◽  
Magnus Hummelgård ◽  
Joel Ljunggren ◽  
Håkan Olin
Keyword(s):  
Solar Cells ◽  
Gas Sensor ◽  
Network Structure ◽  
Room Temperature ◽  
Gas Sensing ◽  
Zno Nanowires ◽  
Gold Particles ◽  
Highly Sensitive ◽  
Semiconductor Electronics ◽  
New Type

Metal-semiconductor junctions and interfaces have been studied for many years due to their importance in applications such as semiconductor electronics and solar cells. However, semiconductor-metal networks are less studied because there is a lack of effective methods to fabricate such structures. Here, we report a novel Au–ZnO-based metal-semiconductor (M-S)n network in which ZnO nanowires were grown horizontally on gold particles and extended to reach the neighboring particles, forming an (M-S)n network. The (M-S)n network was further used as a gas sensor for sensing ethanol and acetone gases. The results show that the (M-S)n network is sensitive to ethanol (28.1 ppm) and acetone (22.3 ppm) gases and has the capacity to recognize the two gases based on differences in the saturation time. This study provides a method for producing a new type of metal-semiconductor network structure and demonstrates its application in gas sensing.

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