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Methanethiol Gas Detection by Using Metal Oxide Nanofiber ...

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Here we developed tungsten oxide (WO3) nanofiber based gas sensor using electrospinning method assisted by zeolite based molecular sieves for improving the selectivity of sensor.

Polycrystalline tungsten oxide nanofibers for gassensing ...

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Gassensing measurements of the polycrystalline WO3 nanofiber mats were performed upon exposure to ammonia gas. They demonstrated ntype sensing response and sensitive NH3 detection up to 10ppm ...

Allnanofiber based, ultrasensitive, gaspermeable heart ...

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Allnanofiber–based, ultrasensitive, gaspermeable mechanoacoustic sensors for continuous longterm heart monitoring Md Osman Goni Nayeem a , Sunghoon Lee , Hanbit Jina, Naoji Matsuhisaa, Hiroaki Jinnoa,b, Akihito Miyamoto , Tomoyuki Yokotaa, and Takao Someyaa,b,c,1 aDepartment of Electrical Engineering and Information Systems, School of Engineering, The …

Black Tungsten Oxide Nanofiber as a Robust Support for ...

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Oct 29, 2021· Herein, the nanofiber (NF) of black oxygendeficient tungsten trioxide (WO 3− x) is presented as a versatile and robust support for the direct growth of a platinum catalyst for oxygen reduction reaction (ORR).

Fabrication of a Highly Sensitive Single Aligned TiO2 and ...

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In this research, a singlealigned nanofiber of pure TiO2 and gold nanoparticle (GNP)TiO2 were fabricated using a novel electrospinning procedure equipped with secondary electrostatic fields on highly sharp triangular and rectangular electrodes provided for gas sensing applications. The sol used for spinning nanofiber consisted of titanium tetraisopropoxide (C12H28O4Ti), acetic …

Synthesis and gassensing characteristics of WO3 ...

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Apr 01, 2011· The response of a WO 3 nanofiberbased gas sensor to 100 ppm NH 3 can reach when the operating temperature is 200 °C, and the response and recovery times are about 1 and 5 s, respectively. It can be seen that, as gassensitive material, the low dimension nanofibers show fast response and recovery characteristics.

Research Interests | Sensors

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I) Tungsten oxynitride hybrid porous nanofibers: Semiconducting metal oxides based gas sensors are inherently hampered by requirement of high working temperature because of their wide bandgaps. To address this issue, nitridation (, N doping) of WO3 nanofibers to WOxNy nanofibers was introduced for realization of lowtemperature NO2 sensing ...

Construction of a Polyaniline Nanofiber Gas Sensor ...

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Aug 01, 2008· The electrical properties of polyaniline changes by orders of magnitude upon exposure to analytes such as acids or bases, making it a useful material for detection of these analytes in the gas phase. The objectives of this lab are to synthesize different diameter polyaniline nanofibers and compare them as sensor materials. In this experiment polyaniline …

Sensors | Free FullText | Gas Sensors Based on ...

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Mar 09, 2009· Wang et al reported the fabrication of a gas sensor to detect moisture and methanol gas based on a single SnO 2 nanofiber made from C 22 H 44 O 4 Sn/PEO using electrospinning and metallorganic deposition techniques. The sensors showed high sensitivity to both gases and response times of the complete testing system were in the range of 108–150 ...

Functional nanofibers in sensor applications ScienceDirect

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Jan 01, 2012· Different nanofiber morphologies can be obtained via control of the ... obtained pure WO 3 nanofibers with controllable diameters of around 100 nm by electrospinning PVAc/tungsten isopropoxide solutions and subsequent ... suggesting potential applications of the electrospun WO 3 nanofibers as a sensor material for gas detection (Fig ...

Development of SnO₂/PEO nanofiber gas sensor for THC ...

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Development of SnO₂/PEO nanofiber gas sensor for THC detection. Creator. Mehrabi, Pouria. Publisher. University of British Columbia. Date Issued. 2018. Description. This thesis presents the development of a metal oxide semiconductor (MOS) sensor for detection of volatile organic compounds (VOCs) which is of great importance in many ...

Sensors | Free FullText | Nanostructured Tungsten Oxide ...

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Oct 23, 2015· If the sensor is exposed to the methane gas, these gas molecules would not only react with the negatively charged oxygen adsorbed on the tungsten oxide surface but also with the metal W component. Once the targeted gas molecules and the metal W dominated the reaction, it would result in reducing conductivity as shown in Figure 5 .

Electrospun Tungsten‐Polyurethane Composite Nanofiber Mats ...

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Oct 26, 2021· An electrospinning strategy is utilized to manufacture composite mats consisting of nontoxic tungsten powder content up to 500 wt% and inexpensive polyurethane (PU) nanofibers for Xray shielding applications. The electrospun composite mats have shown comparable Xray mass attenuation coefficients compared to the conventional sheets prepared by a wetcasting …

Nanofiber Sensor Technology — Vaporsens

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Each nanofiber sensor chip is approximately 3 mm square. The size of the detector arrays can be as small 5 cm square. Detection electronics can also be miniaturized and operated on battery power. Thus, nanofiber chemical sensor technology can be used in extremely portable, handheld and wearable devices.

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