Partially oxidized Ti3C2Tx MXene-sensitive material-based ammonia gas sensor with high-sensing performances for room temperature application

Reduced graphene oxide (rGO) based chemiresistor gas sensor has received much attention in gas sensing for high sensitivity, room temperature operation, and reversible. Here, for the first time, we present a promising chemiresistor for ammonia gas detection based on tannic acid (TA) functionalized and reduced graphene oxide (rGOTA functionalized). Green reductant of TA plays a major role in both reducing process and enhancing the gas sensing properties ofrGOTA functionalized. Our results showrGOTA functionalizedonly selective to ammonia with excellent respond, recovery, respond time, and recovery times.rGOTA functionalizedelectrical resistance decreases upon exposure to NH3where we postulated that it is due to n-doping by TA and charge transfer betweenrGOTA functionalizedand NH3through hydrogen bonding. Furthermore,rGOTA functionalizedhinders the needs for stimulus for both recovery and respond. The combination of greener sensing material and simplicity in overall sensor design provides a new sight for green reductant approach of rGO based chemiresistor gas sensor.

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Room temperature ammonia gas sensor using ester functionalization of graphene oxide

Materials Research Express ◽

10.1088/2053-1591/ab323c ◽

2019 ◽

Vol 6 (9) ◽

pp. 095618

Author(s):

Ravi Kumar ◽

Anil Kumar ◽

Rakesh Singh ◽

Rajesh Kashyap ◽

Rajiv Kumar ◽

...

Keyword(s):

Graphene Oxide ◽

Gas Sensor ◽

Room Temperature ◽

Ammonia Gas

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Polypyrrole Thin Film: Room Temperature Ammonia Gas Sensor

IEEE Sensors Journal ◽

10.1109/jsen.2011.2112765 ◽

2011 ◽

Vol 11 (9) ◽

pp. 2137-2141 ◽

Cited By ~ 41

Author(s):

M. A. Chougule ◽

S. G. Pawar ◽

S. L. Patil ◽

B. T. Raut ◽

P. R. Godse ◽

...

Keyword(s):

Thin Film ◽

Gas Sensor ◽

Room Temperature ◽

Ammonia Gas

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Highly sensitive room temperature ammonia gas sensor based on Ir-doped Pt porous ceramic electrodes

Applied Surface Science ◽

10.1016/j.apsusc.2016.08.121 ◽

2016 ◽

Vol 390 ◽

pp. 929-935 ◽

Cited By ~ 16

Author(s):

Wenlong Liu ◽

Yen-Yu Liu ◽

Jing-Shan Do ◽

Jing Li

Keyword(s):

Gas Sensor ◽

Room Temperature ◽

Porous Ceramic ◽

Ammonia Gas ◽

Highly Sensitive ◽

Ceramic Electrodes

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Fabrication of Room Temperature Resistive Ethanol Gas Sensor Based on ZnO Nanorods Decorated with PbS Nanoparticles

Journal of Nano Research ◽

10.4028/www.scientific.net/jnanor.65.145 ◽

2020 ◽

Vol 65 ◽

pp. 145-155

Author(s):

Hadi Riyahi Madvar ◽

Zoheir Kordrostami ◽

Samaneh Hamedi

Keyword(s):

Gas Sensor ◽

Room Temperature ◽

Printed Circuit Board ◽

Gas Sensing ◽

Zno Nanorods ◽

Test Chamber ◽

High Sensitivity ◽

Circuit Board ◽

Sensitive Material ◽

Pbs Nanoparticles

A resistive ethanol gas sensor with a high sensitivity has been proposed. The fabricated gas sensor has a very promising response and recovery at room temperature. The proposed sensor has been fabricated by depositing sensitive nanostructured material on printed circuit board interdigitated electrodes. As the sensitive material, ZnO nanorods of high uniformity have been synthesized by hydrothermal method and then decorated by PbS nanoparticles. The synthesized decorated nanorods were characterized by X-ray diffraction and scanning electron microscope which confirmed the formation of the desired nanostructures. The ethanol gas sensing properties of the ZnO nanorods decorated with PdS nanoparticles was measured in a test chamber. The minimum ethanol concentration detected by the sensor has been 10 ppm. The results showed the higher sensitivity of the proposed sensor to the ethanol at room temperature compared to similar works.

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