Performance of a fabricated nanocomposite-based capacitive gas sensor at room temperature

Pourteimoor, Salar; Haratizadeh, H.

doi:10.1007/s10854-017-7800-y

Cited by 17 publications

(8 citation statements)

References 21 publications

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“…Electrical gas sensors have the advantages of simple structure, low cost, and fast response. [88,89] So far, the research on SACs in the field of gas sensing has mainly focused on electrical gas sensors. This is because when the support materials such as metal-oxide semiconductors or carbon are loaded with single atoms, their electrical properties such as impedance are exceptionally sensitive to the changes in external gases.…”

Section: Working Mechanismsmentioning

confidence: 99%

Progress and Perspectives of Single‐Atom Catalysts for Gas Sensing

et al. 2022

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Single‐atom catalysts (SACs) attract extensive attention in the field of heterogeneous catalysis in recent years due to the maximum atom utilization and unique physical and chemical properties. The gas sensing is actually a heterogeneous catalysis process but the SACs are new to this area. Although SACs show huge potential in gas sensing, the SACs gas sensing area currently is still at the infancy stage. This work critically reviews the recent advances and current status of single‐atom gas sensing materials. General synthesis routes, characterization methods, and sensing performance indexes are introduced. At the end, the challenges and future prospects on SACs gas sensing are presented from the authors’ perspectives. This work is anticipated to provide insights and guideline for the chemical sensing community.

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Section: Working Mechanismsmentioning

confidence: 99%

Progress and Perspectives of Single‐Atom Catalysts for Gas Sensing

et al. 2022

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“…A nanocomposite sensing layer, composed of polypyrrole (PPy) and bromoaluminum phthalocyanine (BrAlPc), has been deposited on an IDE structure on a glass substrate. This sensor offered interesting detection performance, including a sensitivity of 85% to 100 ppm H 2 S gas, and short response and recovery times [64]. More details are given in Table 3.…”

Section: Capacitive Sensorsmentioning

confidence: 99%

Gas sensing based on organic composite materials: Review of sensor types, progresses and challenges

Nasri

Pétrissans

Fierro

2021

Materials Science in Semiconductor Processing

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Over the past decade, organic semiconductors and renewable resources have aroused great interest in basic research and practical applications. Composites based on organic materials and materials of biological origin, if not all bio-based, are potentially abundant and partly biodegradable. These materials have demonstrated advantages making them ideally suited for gas-sensing applications. Herein, we present different detection principles of gas sensing, such as electrochemical, resistive, capacitive, and acoustic sensors. Besides, we describe sensing properties and suitable materials to enhance the selectivity, sensitivity and response/recovery time of gas sensors. In addition, an overview of different forms of materials based on renewable resources and inorganic/organic semiconductors, as well as the development of different types of sensors are discussed. Finally, challenges and future directions are examined in order to develop a low-cost microscale sensing technology using composite materials based on renewable resources. We anticipate that chemical engineering, computer science, machine learning and embedded systems can contribute to the development of new sensing materials.

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“…(1) Volume sensing: In this sensing modality, the measured capacitance varies with the shape, size, dielectric constant of the object, or the change of the electric field generated by the object itself. Several representative applications in this sensing modality have been proposed, such as electrical capacitance tomography (ECT) [11], capacitive gas sensor [12], [13], capacitive humidity sensor [14], capacitive voltage sensor [15], [16], and so on.…”

Section: Background a Definition Of Capacitive Displacement Sensingmentioning

confidence: 99%

A Review on Applications of Capacitive Displacement Sensing for Capacitive Proximity Sensor

et al. 2020

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Capacitive proximity sensors (CPSs) are ubiquitous because of their simple design, low cost and low consumption. Capacitive displacement sensing, as one of the three sensing modalities, works for long distance and can be unitized to measure more physical quantities compared with capacitive volume and deformation sensing. In this paper, we firstly introduce the concept of capacitive displacement sensing. After that, we present applications of capacitive displacement sensing under three broad categories: distance measurements, indirect measurements, and the applications applied in smart environments. Finally, we discuss the challenges and possible solutions for CPSs development. We show that both the detection range and accuracy of CPS can be improved by multi-sensor fusion, and the application scenarios can be extensive through machine/deep learning approaches. We aim to provide a comprehensive, and state-of-theart review of the capacitive displacement sensing, and inspire more researchers and developers to find wide application perspectives.INDEX TERMS Capacitive proximity sensor (CPS), capacitive displacement sensing, distance measurement, indirect measurement, smart environment.

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Performance of a fabricated nanocomposite-based capacitive gas sensor at room temperature

Cited by 17 publications

References 21 publications

Progress and Perspectives of Single‐Atom Catalysts for Gas Sensing

Progress and Perspectives of Single‐Atom Catalysts for Gas Sensing

Gas sensing based on organic composite materials: Review of sensor types, progresses and challenges

A Review on Applications of Capacitive Displacement Sensing for Capacitive Proximity Sensor

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