scholarly journals Chemiresistive Sensor Array Based on Semiconducting Metal Oxides for Environmental Monitoring

2014 ◽  
Vol 23 (1) ◽  
pp. 15-18 ◽  
Author(s):  
Hi Gyu Moon ◽  
Soo Deok Han ◽  
Min-Gyu Kang ◽  
Woo-Suk Jung ◽  
Ho Won Jang ◽  
...  
Keyword(s):  
Environmental Monitoring ◽  
Metal Oxides ◽  
Sensor Array ◽  
Semiconducting Metal Oxides ◽  
Chemiresistive Sensor

scholarly journals An Outlook of Recent Advances in Chemiresistive Sensor-Based Electronic Nose Systems for Food Quality and Environmental Monitoring

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2271
Author(s):  
Alishba T. John ◽  
Krishnan Murugappan ◽  
David R. Nisbet ◽  
Antonio Tricoli
Keyword(s):  
Environmental Monitoring ◽  
Electronic Nose ◽  
System Integration ◽  
Low Cost ◽  
Critical Perspective ◽  
Recent Advances ◽  
Custom Made ◽  
Volatile Organic ◽  
Semiconducting Metal Oxides ◽  
Chemiresistive Sensor

An electronic nose (Enose) relies on the use of an array of partially selective chemical gas sensors for identification of various chemical compounds, including volatile organic compounds in gas mixtures. They have been proposed as a portable low-cost technology to analyse complex odours in the food industry and for environmental monitoring. Recent advances in nanofabrication, sensor and microcircuitry design, neural networks, and system integration have considerably improved the efficacy of Enose devices. Here, we highlight different types of semiconducting metal oxides as well as their sensing mechanism and integration into Enose systems, including different pattern recognition techniques employed for data analysis. We offer a critical perspective of state-of-the-art commercial and custom-made Enoses, identifying current challenges for the broader uptake and use of Enose systems in a variety of applications.

Carbon Monoxide Sensing Technologies

2021 ◽  
Keyword(s):  
Thin Films ◽  
Carbon Nanotubes ◽  
Carbon Monoxide ◽  
Metal Oxides ◽  
Electrochemical Sensors ◽  
Colorimetric Detection ◽  
Infrared Sensors ◽  
Polymeric Thin Films ◽  
Semiconducting Metal Oxides ◽  
Book Covers

The book covers the sensing and monitoring of poisonous carbon monoxide pollution in the environment. The sensors covered include semiconducting metal oxides, carbon nanotubes, conducting polymeric thin films, sensors based on colorimetric detection, non-dispersive infrared sensors, electrochemical sensors and photoacoustic detectors.

Photoreduction of metallic co-catalysts onto novel semiconducting metal oxides

2010 ◽  
Vol 174 (1-3) ◽  
pp. 66-70 ◽  
Author(s):  
Sarif Masud ◽  
Maryam Zarei ◽  
Martha Laura Lopez ◽  
Jorge Gardea-Torresdey ◽  
C.V. Ramana ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Co Catalysts ◽  
Semiconducting Metal Oxides

scholarly journals CuxO Nanostructure-Based Gas Sensors for H2S Detection: An Overview

Chemosensors ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 127
Author(s):  
Sachin Navale ◽  
Mehrdad Shahbaz ◽  
Sanjit Manohar Majhi ◽  
Ali Mirzaei ◽  
Hyoun-Woo Kim ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Gas Sensors ◽  
Noble Metals ◽  
Oil And Gas ◽  
Detection Mechanism ◽  
Reliable Detection ◽  
Electrical Sensing ◽  
Semiconducting Metal Oxides ◽  
H2s Detection

H2S gas is a toxic and hazardous byproduct of the oil and gas industries. It paralyzes the olfactory nerves, with concentrations above 100 ppm, resulting in loss of smell; prolonged inhalation may even cause death. One of the most important semiconducting metal oxides for the detection of H2S is CuxO (x = 1, 2), which is converted to CuxS upon exposure to H2S, leading to a remarkable modulation in the resistance and appearance of an electrical sensing signal. In this review, various morphologies of CuxO in the pristine form, composites of CuxO with other materials, and decoration/doping of noble metals on CuxO nanostructures for the reliable detection of H2S gas are thoroughly discussed. With an emphasis to the detection mechanism of CuxO-based gas sensors, this review presents findings that are of considerable value as a reference.

Semiconducting Metal Oxides for Photocatalytic and Gas Sensing Applications

2020 ◽  
pp. 265-301
Author(s):  
Ritu Malik ◽  
Vijay K. Tomer ◽  
Vandna Chaudhary ◽  
Nirav Joshi ◽  
Surender Duhan
Keyword(s):  
Metal Oxides ◽  
Gas Sensing ◽  
Sensing Applications ◽  
Semiconducting Metal Oxides

A chemiresistive sensor array from conductive polymer nanowires fabricated by nanoscale soft lithography

Nanoscale ◽  
2018 ◽  
Vol 10 (44) ◽  
pp. 20578-20586 ◽  
Author(s):  
Yang Jiang ◽  
Ning Tang ◽  
Cheng Zhou ◽  
Ziyu Han ◽  
Hemi Qu ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Conducting Polymer ◽  
Soft Lithography ◽  
Sensor Array ◽  
Conductive Polymer ◽  
Cost Effective ◽  
Gas Sensor Array ◽  
Chemiresistive Sensor ◽  
Polymer Nanowires

A chemiresistive gas sensor array composed of well-ordered sub-100 nm wide conducting polymer nanowires was fabricated by using cost-effective nanoscale soft lithography.

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