A highly sensitive room-temperature sensing material for NH3: SnO2-nanorods coupled by rGO

2017 ◽  
Vol 242 ◽  
pp. 1216-1226 ◽  
Author(s):  
Yun Chen ◽  
Wen Zhang ◽  
Qingsheng Wu
Keyword(s):  
Room Temperature ◽  
Temperature Sensing ◽  
Sno2 Nanorods ◽  
Sensing Material ◽  
Highly Sensitive

scholarly journals A stable and highly sensitive room-temperature liquefied petroleum gas sensor based on nano-cubes/cuboids of zinc antimonate

RSC Advances ◽  
2020 ◽  
Vol 10 (34) ◽  
pp. 20349-20357 ◽  
Author(s):  
Satyendra Singh ◽  
Archana Singh ◽  
Ajendra Singh ◽  
Poonam Tandon
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
Liquefied Petroleum Gas ◽  
Sensing Material ◽  
Highly Sensitive ◽  
Lpg Sensing

A new direction was explored using nanostructured zinc antimonate as a stable and highly sensitive LPG sensing material.

2D/2D heterojunction of g–C3N4/SnS2: room-temperature sensing material for ultrasensitive and rapid-recoverable NO2 detection

2020 ◽  
Vol 31 (42) ◽  
pp. 425502
Author(s):  
Quan Sun ◽  
Juanyuan Hao ◽  
Shengliang Zheng ◽  
Peng Wan ◽  
Jialu Li ◽  
...  
Keyword(s):  
Room Temperature ◽  
Temperature Sensing ◽  
Sensing Material ◽  
No2 Detection

scholarly journals Response of alumina resistance to trace concentrations of acetone vapors at room temperature

2019 ◽  
Vol 70 (7) ◽  
pp. 122-126
Author(s):  
Ján Ivančo ◽  
Yuriy Halahovets ◽  
Monika Benkovičová ◽  
Matej Mičušík ◽  
Jozef Kollár ◽  
...  
Keyword(s):  
Room Temperature ◽  
Temperature Sensing ◽  
Thermal Pretreatment ◽  
Highly Sensitive ◽  
Pretreatment Temperature ◽  
Plausible Mechanism ◽  
Trace Concentrations ◽  
Acetone Sensor

Abstract The study demonstrates that resistivity of an alumina wafer is highly sensitive to trace concentrations of acetone vapors at room temperature. Though, a thermal pretreatment is necessary to precede the room-temperature sensing of acetone vapors, whilst the sensitiveness increases with the pretreatment temperature. This advocates the alumina being suitable for an adequate acetone sensor in the ppm range. A plausible mechanism of the response is discussed.

Hydrogen sensors based on Pt-decorated SnO2 nanorods with fast and sensitive room-temperature sensing performance

2019 ◽  
Vol 811 ◽  
pp. 152086 ◽  
Author(s):  
Zihui Chen ◽  
Keyang Hu ◽  
Piaoyun Yang ◽  
Xingxing Fu ◽  
Zhao Wang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Temperature Sensing ◽  
Hydrogen Sensors ◽  
Sno2 Nanorods ◽  
Sensing Performance

scholarly journals Graphene derivative coated QCM-based gas sensor for volatile organic compound (VOC) detection at room temperature

2020 ◽  
Vol 18 (3) ◽  
pp. 1279
Author(s):  
Monika Gupta ◽  
Nurul Athirah ◽  
Huzein Fahmi Hawari
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
Building Materials ◽  
High Mobility ◽  
Fossil Fuel Burning ◽  
Sensing Material ◽  
Highly Sensitive ◽  
Volatile Organic ◽  
Response And Recovery ◽  
Hall Effect Measurements

<span>Volatile organic compounds (VOCs) affect our daily life through their emission from very common sources such as plants, building materials, paints, pesticides, and fossil fuel burning. The detection of VOCs at room temperature is a prime requirement. The graphene-based gas sensor has the potential to detect these VOC gases due to its attractive features such as high mobility and large surface area. In this work, a graphene-derivative is prepared as a sensing material in order to detect acetone. The thin film of graphene-derivative is prepared by a drop-cast method on a quartz crystal microbalance (QCM) sensor followed by drying in the room environment conditions. The prepared graphene-derivative and thin films are characterized structurally and morphologically by standard microscopic techniques such as FESEM, EDX, and Raman spectroscopy. The electrical parameters such as mobility and resistivity are measured using Hall-effect measurements at room temperature. The response and recovery time of the graphene-derivative based 10 MHz QCM sensor are found to be 23 s and 20 s, respectively. This highly sensitive graphene-based gas sensor with good reversibility can be employed for human health and environment safety applications. </span>

scholarly journals Nanocrystalline CeO 2 as Room Temperature Sensing Material for CO 2 in Low Power Work Function Sensors

2015 ◽  
Vol 120 ◽  
pp. 1058-1062 ◽  
Author(s):  
E. Laubender ◽  
N.B. Tanvir ◽  
O. Yurchenko ◽  
G. Urban
Keyword(s):  
Low Power ◽  
Work Function ◽  
Room Temperature ◽  
Temperature Sensing ◽  
Sensing Material

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

Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 2919 ◽  
Author(s):  
Monika Kwoka ◽  
Michal Borysiewicz ◽  
Pawel Tomkiewicz ◽  
Anna Piotrowska ◽  
Jacek Szuber
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
Gas Sensing ◽  
Signal To Noise Ratio ◽  
Fast Response ◽  
Surface Photovoltage ◽  
Kelvin Probe ◽  
Sensor Device ◽  
Sensing Material ◽  
Highly Sensitive

In this paper a novel type of a highly sensitive gas sensor device based on the surface photovoltage effect is described. It is based on the Kelvin probe approach. Porous ZnO nanostructured thin films deposited by the direct current (DC) reactive magnetron sputtering method are used as the active gas sensing electrode material. Crucially, the obtained gas sensing material exhibited a nanocoral surface morphology and surface Zn to O non-stoichiometry with respect to its bulk mass. Among other responses, the demonstrated SPV gas sensor device exhibits a high response to an NO2 concentration as low as 1 ppm, with a signal to noise ratio of about 50 and a fast response time of several seconds under room temperature conditions.

Controlled Growth and Characterization Ag/ZnO Nanotetrapods for Humidity Sensing

2018 ◽  
Vol 21 (7) ◽  
pp. 462-467
Author(s):  
Babak Sadeghi
Keyword(s):  
Room Temperature ◽  
Zinc Complex ◽  
Water Solution ◽  
Particle Morphology ◽  
Quick Response ◽  
Separation System ◽  
Humidity Sensing ◽  
Sensor Material ◽  
Highly Sensitive

Aim and Objective: Ultrafine Ag/ZnO nanotetrapods (AZNTP) have been prepared successfully using silver (I)–bis (oxalato) zinc complex and 1, 3-diaminopropane (DAP) with a phase separation system, and have been injected into a diethyl/water solution. Materials and Methods: This crystal structure and lattice constant of the AZNTP obtained were investigated by means of a SEM, XRD, TEM and UV-vis spectrum. Results: The results of the present study demonstrated the growth and characterization AZNTP for humidity sensing and DAP plays a key role in the determination of particle morphology. AZNTP films with 23 nm in arm diameter have shown highly sensitive, quick response sensor material that works at room temperature.

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