Metal/Metal-Oxide Nanoclusters for Gas Sensor Applications

Ayesh, Ahmad I.

doi:10.1155/2016/2359019

Cited by 64 publications

(26 citation statements)

References 123 publications

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“…One of the effective ways to improve the gas sensing performance is the formation of the metal/MOx nanoclusters, which are characterized by large surface-to-volume ratios, selective and rapid response to different gases (Ayesh, 2016). Nanoclusters of Au, Pd, and Pt are widely used to enhance the sensitivity and selectivity of the MOx sensors.…”

Section: Nobel Metal Surface Loadingmentioning

confidence: 99%

Review: Influences of Semiconductor Metal Oxide Properties on Gas Sensing Characteristics

2021

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Semiconductor metal oxides (SMOxs) are widely used in gas sensors due to their excellent sensing properties, abundance, and ease of manufacture. The best examples of these sensing materials are SnO2 and TiO2 that have wide band gap and offer unique set of functional properties; the most important of which are electrical conductivity and high surface reactivity. There has been a constant development of SMOx sensor materials in the literature that has been accompanied by the improvement of their gas-sensitive properties for the gas detection. This review is dedicated to compiling of these efforts in order to mark the achievements in this area. The main material-specific aspects that strongly affect the gas sensing properties and can be controlled by the synthesis method are morphology/nanostructuring and dopants to vary crystallographic structure of MOx sensing material.

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Section: Nobel Metal Surface Loadingmentioning

confidence: 99%

Review: Influences of Semiconductor Metal Oxide Properties on Gas Sensing Characteristics

2021

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“…Then, commercialization was demonstrated for the SnO 2 -based gas sensors [49]. Nowadays, metal oxide-based gas sensors are widely used for detection of more than 150 toxic gases [50,51], and many companies such as Figaro, Winsen, AMS (ScioSense), City Technology, SGX Sensortech, and IDT (Synkera) are offering many types of those sensors.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Metal Oxide-Based Acetone Gas Sensors: A Review

Amiri

Roshan

Mirzaei

et al. 2020

Sensors

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185

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Acetone is a well-known volatile organic compound that is widely used in different industrial and domestic areas. However, it can have dangerous effects on human life and health. Thus, the realization of sensitive and selective sensors for recognition of acetone is highly important. Among different gas sensors, resistive gas sensors based on nanostructured metal oxide with high surface area, have been widely reported for successful detection of acetone gas, owing to their high sensitivity, fast dynamics, high stability, and low price. Herein, we discuss different aspects of metal oxide-based acetone gas sensors in pristine, composite, doped, and noble metal functionalized forms. Gas sensing mechanisms are also discussed. This review is an informative document for those who are working in the field of gas sensors.

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“…A conductometric gas sensor is a device that detects gaseous species in an environment by change in its electrical resistance [2,3]. This type of sensors is attractive for utilization in portable field applications due to its many advantages that include the simple fabrication process, compact size, and direct reading [4].…”

Section: Introductionmentioning

confidence: 99%

Production of sensitive gas sensors using CuO/SnO2 nanoparticles

et al. 2019

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Metal oxide nanoparticles, such as CuO and SnO 2 , are outstanding systems for H 2 S gas sensing in air. In this work, those nanoparticles were deposited with different mixing percentages on substrates to form percolating networks of nanoparticles. Electrical electrodes were deposited on the nanoparticles' films to investigate their gas sensing response against H 2 and H 2 S, and their electrical characteristics. The sensor devices based on CuO-SnO 2 nanoparticles revealed enhanced sensing characteristics against H 2 S with a sensitivity of 10 ppm. The enhanced sensing characteristics could be attributed to the formation of PN-junctions among CuO and SnO 2 nanoparticles. The reasonable production cost (due to simple structure and cheap used materials), low power consumption (~ 1 µW for H 2 S at room temperature), high sensitivity, high response, and reasonable response time of the present sensors qualify them for practical implementation in portable gas sensing devices with enhanced characteristics.

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Metal/Metal-Oxide Nanoclusters for Gas Sensor Applications

Cited by 64 publications

References 123 publications

Review: Influences of Semiconductor Metal Oxide Properties on Gas Sensing Characteristics

Review: Influences of Semiconductor Metal Oxide Properties on Gas Sensing Characteristics

Nanostructured Metal Oxide-Based Acetone Gas Sensors: A Review

Production of sensitive gas sensors using CuO/SnO2 nanoparticles

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