scholarly journals The effects of amino substituents on the enhanced ammonia sensing performance of PcCo/rGO hybrids

RSC Advances ◽  
2018 ◽  
Vol 8 (72) ◽  
pp. 41280-41287 ◽  
Author(s):  
Bin Wang ◽  
Xiaolin Wang ◽  
Xiaocheng Li ◽  
Zhijiang Guo ◽  
Xin Zhou ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Room Temperature ◽  
Ammonia Gas ◽  
Ammonia Sensing ◽  
Highly Sensitive ◽  
Cost Efficient ◽  
Ammonia Gas Sensors ◽  
Sensing Performance

Three new room temperature reversible ammonia gas sensors were fabricated using PcCo/rGO hybrids with cost-efficient, highly sensitive and stable sensing performance.

Highly sensitive and selective ammonia gas sensors based on PbS quantum dots/TiO2 nanotube arrays at room temperature

2016 ◽  
Vol 236 ◽  
pp. 529-536 ◽  
Author(s):  
Yueli Liu ◽  
Linlin Wang ◽  
Haoran Wang ◽  
Mengyun Xiong ◽  
Tingqiang Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Gas Sensors ◽  
Room Temperature ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Ammonia Gas ◽  
Highly Sensitive ◽  
Ammonia Gas Sensors ◽  
Pbs Quantum Dots

Metal-oxide based ammonia gas sensors: A review

2020 ◽  
Vol 10 ◽  
Author(s):  
Priya Gupta ◽  
Savita Maurya ◽  
Narendra Kumar Pandey ◽  
Vernica Verma
Keyword(s):  
Metal Oxide ◽  
Metal Oxides ◽  
Gas Sensor ◽  
Gas Sensors ◽  
Review Paper ◽  
Gas Sensing ◽  
Gas Sensitivity ◽  
Ammonia Gas ◽  
Ammonia Sensing ◽  
Ammonia Gas Sensors

: This review paper encompasses a study of metal-oxide and their composite based gas sensors used for the detection of ammonia (NH3) gas. Metal-oxide has come into view as an encouraging choice in the gas sensor industry. This review paper focuses on the ammonia sensing principle of the metal oxides. It also includes various approaches adopted for increasing the gas sensitivity of metal-oxide sensors. Increasing the sensitivity of the ammonia gas sensor includes size effects and doping by metal or other metal oxides which will change the microstructure and morphology of the metal oxides. Different parameters that affect the performances like sensitivity, stability, and selectivity of gas sensors are discussed in this paper. Performances of the most operated metal oxides with strengths and limitations in ammonia gas sensing application are reviewed. The challenges for the development of high sensitive and selective ammonia gas sensor are also discussed.

Electrospraying preparation of metal germanate nanospheres for high-performance lithium-ion batteries and room-temperature gas sensors

Nanoscale ◽  
2019 ◽  
Vol 11 (25) ◽  
pp. 12116-12123 ◽  
Author(s):  
Rui Li ◽  
Renmu Zhang ◽  
Zheng Lou ◽  
Tingting Huang ◽  
Kai Jiang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Gas Sensors ◽  
High Performance ◽  
Large Scale ◽  
Room Temperature ◽  
Lithium Ion ◽  
Ammonia Gas ◽  
Potential Applications ◽  
Ammonia Gas Sensors

Metal germanate nanospheres including Ca2Ge7O16, Zn2GeO4 and SrGe4O9 were prepared by a facile and large-scale electrospraying process. They have potential applications in lithium-ion batteries and room temperature ammonia gas sensors.

Room temperature pH-dependent ammonia gas sensors using graphene quantum dots

2016 ◽  
Vol 222 ◽  
pp. 763-768 ◽  
Author(s):  
Wei Chen ◽  
Fushan Li ◽  
Poh Choon Ooi ◽  
Yun Ye ◽  
Tae Whan Kim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Gas Sensors ◽  
Room Temperature ◽  
Graphene Quantum Dots ◽  
Ammonia Gas ◽  
Ph Dependent ◽  
Ammonia Gas Sensors

A flexible VOCs sensor based on a 3D Mxene framework with a high sensing performance

2018 ◽  
Vol 6 (37) ◽  
pp. 18116-18124 ◽  
Author(s):  
Wenjing Yuan ◽  
Kai Yang ◽  
Huifen Peng ◽  
Fang Li ◽  
Fuxing Yin
Keyword(s):  
Gas Sensors ◽  
Room Temperature ◽  
Sensitive Detection ◽  
Sensing Range ◽  
Highly Sensitive ◽  
Highly Sensitive Detection ◽  
Sensing Performance

3D Mxene based gas sensors demonstrated a highly sensitive detection for VOCs in an ultra-wide sensing range at room temperature.

Ultralow-detection limit ammonia gas sensors at room temperature based on MWCNT/WO3 nanocomposite and effect of humidity

2021 ◽  
Vol 113 ◽  
pp. 106534
Author(s):  
Vu Truong Duong ◽  
Cong Tu Nguyen ◽  
Huu Bac Luong ◽  
Duc Chien Nguyen ◽  
Huu Lam Nguyen
Keyword(s):  
Detection Limit ◽  
Gas Sensors ◽  
Room Temperature ◽  
Ammonia Gas ◽  
Ammonia Gas Sensors

3D Hollow Quasi-Graphite Capsules/Polyaniline Hybrid with a High Performance for Room-Temperature Ammonia Gas Sensors

ACS Sensors ◽  
2019 ◽  
Vol 4 (9) ◽  
pp. 2343-2350 ◽  
Author(s):  
Hong Wang ◽  
Song Nie ◽  
Han Li ◽  
Rashad Ali ◽  
Jianan Fu ◽  
...  
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Room Temperature ◽  
Ammonia Gas ◽  
Ammonia Gas Sensors

ZnO Nanorods Based Ammonia Gas Sensors with Interdigitized Electrodes

2011 ◽  
Vol 694 ◽  
pp. 155-159
Author(s):  
Tai You Chen ◽  
Jian Sheng Wu ◽  
Chi Shiang Hsu ◽  
Po Cheng Chou ◽  
Huey Ing Chen ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Gas Sensors ◽  
High Performance ◽  
Zno Nanorods ◽  
Sensor Response ◽  
Electrode Spacing ◽  
Ammonia Gas ◽  
Ammonia Sensing ◽  
Sensing Applications ◽  
Ammonia Gas Sensors

The ZnO nanorods-based ammonia (NH3) gas sensors with different electrode spacing are fabricated and studied. Experimentally, the hexagonal ZnO nanorods were prepared by a hydrothermal method. The diameter and length of ZnO nanorods were about 179±2, 1806±5 nm, respectively. By shrinking the electrode spacing, the sensor response of studied device is improved and the sensor response is enhanced more than ten times in magnitude. The improved NH3 sensing ability caused by shrink electrode spacing is attributed to the presence of more grain boundaries and depletion layers. Therefore, the studied device with the shrink of electrode spacing provides a promise for high-performance ammonia sensing applications.

Nanoparticle cluster gas sensor: Pt activated SnO2 nanoparticles for NH3 detection with ultrahigh sensitivity

Nanoscale ◽  
2015 ◽  
Vol 7 (36) ◽  
pp. 14872-14880 ◽  
Author(s):  
Xu Liu ◽  
Nan Chen ◽  
Bingqian Han ◽  
Xuechun Xiao ◽  
Gang Chen ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Gas Sensors ◽  
Solvothermal Method ◽  
Sno2 Nanoparticles ◽  
Ammonia Gas ◽  
Highly Sensitive ◽  
Nanoparticle Clusters ◽  
Ultrahigh Sensitivity ◽  
Ammonia Gas Sensors ◽  
Nanoparticle Cluster

Pt activated SnO2 nanoparticle clusters were synthesized by a simple solvothermal method for use in highly sensitive ammonia gas sensors.

scholarly journals Improving Ammonia Detecting Performance of Polyaniline Decorated rGO Composite Membrane with GO Doping

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2829
Author(s):  
Yubin Yuan ◽  
Haiyang Wu ◽  
Xiangrui Bu ◽  
Qiang Wu ◽  
Xuming Wang ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Gas Sensing ◽  
Response Process ◽  
Ammonia Gas ◽  
Adsorption Sites ◽  
Nh3 Adsorption ◽  
Doped Polyaniline ◽  
Ammonia Gas Sensors ◽  
Gas Response ◽  
Sensing Performance

Gas-sensing performance of graphene-based material has been investigated widely in recent years. Polyaniline (PANI) has been reported as an effective method to improve ammonia gas sensors’ response. A gas sensor based on a composite of rGO film and protic acid doped polyaniline (PA-PANI) with GO doping is reported in this work. GO mainly provides NH3 adsorption sites, and PA-PANI is responsible for charge transfer during the gas-sensing response process. The experimental results indicate that the NH3 gas response of rGO is enhanced significantly by decorating with PA-PANI. Moreover, a small amount of GO mixed with PA-PANI is beneficial to increase the gas response, which showed an improvement of 262.5% at 25 ppm comparing to no GO mixing in PA-PANI.

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