Recent advances and perspectives on constructing metal oxide semiconductor gas sensing materials for efficient formaldehyde detection

2020 ◽  
Vol 8 (38) ◽  
pp. 13169-13188
Author(s):  
Zejun Han ◽  
Yuan Qi ◽  
Zhengyi Yang ◽  
Hecheng Han ◽  
Yanyan Jiang ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Gas Sensing ◽  
Metal Oxide Semiconductor ◽  
Detection Performance ◽  
Metal Oxide Semiconductors ◽  
Oxide Semiconductor ◽  
Oxide Semiconductors ◽  
Effective Strategies ◽  
Recent Advances

The sensing mechanisms and effective strategies for enhancing the formaldehyde detection performance of metal oxide semiconductors have been reviewed.

Engineering metal oxide semiconductor nanostructures for enhanced charge transfer: fundamentals and emerging SERS applications

2022 ◽  
Author(s):  
Samriti ◽  
Vishal Rajput ◽  
Raju Kumar Gupta ◽  
Jai Prakash
Keyword(s):  
Charge Transfer ◽  
Metal Oxide ◽  
Semiconductor Nanostructures ◽  
Metal Oxide Semiconductor ◽  
Metal Oxide Semiconductors ◽  
Oxide Semiconductor ◽  
Oxide Semiconductors ◽  
Transfer Processes

Fundamentals of doping engineering strategies of metal oxide semiconductors and various charge transfer processes for emerging SERS applications are discussed.

scholarly journals Metal Oxide Semiconductor: Future Material for Gas Sensors and it’s Synthesis Techniques

2019 ◽  
Vol 8 (6S3) ◽  
pp. 1615-1619
Keyword(s):  
Metal Oxide ◽  
Gas Sensors ◽  
Gas Sensing ◽  
Low Cost ◽  
High Surface ◽  
High Surface Area ◽  
Metal Oxide Semiconductor ◽  
Oxide Semiconductor ◽  
Oxide Semiconductors ◽  
Methods Of Synthesis

This paper provides a complete idea about metal oxide semiconductors ((MOSs) for gas sensing application. Metal oxide semiconductor nano-materials are showing much higher strength in many industries, research laboratories and public health and so on with their effective chemical, physical, and electronic properties. The morphology, band gap, porosity, conductivity properties, low cost and high surface area etc. are few of the properties of MOSs that are responsible for the enhancement of sensing properties in various applications. Besides these, now-a-days MOSs are grown in different nanostructures like nano rods, nano flowers, nano sheets, nanowires etc. using the various growth techniques which are further responsible for their betterment as gas sensors. Therefore, this paper gives a complete idea about the different methods of synthesis of MOSs.

Gas sensing mechanisms of metal oxide semiconductors: a focus review

Nanoscale ◽  
2019 ◽  
Vol 11 (47) ◽  
pp. 22664-22684 ◽  
Author(s):  
Haocheng Ji ◽  
Wen Zeng ◽  
Yanqiong Li
Keyword(s):  
Metal Oxide ◽  
Gas Sensing ◽  
Metal Oxide Semiconductors ◽  
Oxide Semiconductors ◽  
Relationship Of

This review organizes and introduces several common gas sensing mechanisms of metal oxide semiconductors in detail and classifies them into two categories. The scope and relationship of these mechanisms are clarified.

scholarly journals Respected Author, Your research paper has been published successfully. Please find the link below. http://ymerdigital.com/current-issue/ Please find the below DOI allocated to your article. 10.37896/YMER20.12/45 OR https://www.doi.org/10.37896/YMER20.12/45 Please find the below attached E- certificates Thanks.

YMER Digital ◽  
2021 ◽  
Vol 20 (12) ◽  
pp. 504-509
Author(s):  
C. K Nanhey ◽  
◽  
M. K Bhanarkar ◽  
B. M. Sargar ◽  
◽  
...  
Keyword(s):  
Thin Film ◽  
Metal Oxide ◽  
Current Issue ◽  
Gas Sensing ◽  
Electrical Characterization ◽  
Metal Oxide Semiconductor ◽  
Oxide Semiconductor ◽  
Sensing Material ◽  
Film Development ◽  
Sensing Characteristics

Since many years, metal oxide semiconductor has paid too much interest as a gas sensing material by researchers because of wide performance. TiO2 is one of the majority crucial metal oxide which produced better performance in thin film development. Advanced spray pyrolysis system was used to develop thin film. The gas sensing characteristics TiO2 films are evaluated with responses. The gas sensing response, electrical characterization and sensitivity are corporate.

scholarly journals Photo-Electrochemical Solar-to-Fuel Energy Conversion by Hematite-Based Photo-Anodes – The Role of 1D Nanostructuring

2020 ◽  
Vol 234 (4) ◽  
pp. 615-631
Author(s):  
Seyedsina Hejazi ◽  
Marco Altomare ◽  
Patrik Schmuki
Keyword(s):  
Metal Oxide ◽  
Anode Materials ◽  
Metal Oxide Semiconductors ◽  
Production Costs ◽  
High Rate ◽  
Environmental Friendliness ◽  
Oxide Semiconductors ◽  
Co Catalyst ◽  
Effective Strategies

AbstractPhoto-electrochemical (PEC) water splitting (WS) using metal oxide semiconductors is regarded as a promising approach for the renewable production of fuels and energy vectors such as hydrogen (H2). Among metal oxide semiconductors, iron oxide in the form of hematite (α-Fe2O3) is one of the most researched photo-anode materials, mainly due to its ability to absorb photons up to 600 nm combined to a set of desirable properties such as high photocorrosion resistance, environmental friendliness, large abundance and relatively low production costs. However, hematite main disadvantages are a low electrical conductivity and a high rate of charge recombination; both these shortcomings drastically limit functionality and efficiency of hematite-based photo-anodes in PEC devices. One-dimensional (1D) nanostructuring is a powerful tool to tackle such disadvantages as it provides the photoelectrode material with increased surface area along with directional charge transport properties and short charge diffusion distances to the electrolyte – these features can improve the lifetime of photo-generated charges and/or enhance the charge transfer efficiency, and can consequently lead to a superior photo-electrochemical performance. At the same time, chemical/physical modification can also compensate natural weaknesses of hematite in water photoelectolysis. The present mini-review outlines a series of most effective strategies for the fabrication of 1D hematite nanostructures as well as for their physicochemical modification, mainly by doping or co-catalyst decoration, to achieve superior PEC activity.

scholarly journals 3D Gas Distribution with and without Artificial Airflow: An Experimental Study with a Grid of Metal Oxide Semiconductor Gas Sensors

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 911 ◽  
Author(s):  
Javier Burgués ◽  
Victor Hernandez ◽  
Achim J. Lilienthal ◽  
Santiago Marco
Keyword(s):  
Metal Oxide ◽  
Gas Sensors ◽  
Gas Sensing ◽  
Three Dimensional ◽  
Metal Oxide Semiconductor ◽  
Oxide Semiconductor ◽  
Wind Tunnels ◽  
Gaseous Emissions ◽  
Gas Distribution ◽  
Life Saving

Gas distribution modelling can provide potentially life-saving information when assessing the hazards of gaseous emissions and for localization of explosives, toxic or flammable chemicals. In this work, we deployed a three-dimensional (3D) grid of metal oxide semiconductor (MOX) gas sensors deployed in an office room, which allows for novel insights about the complex patterns of indoor gas dispersal. 12 independent experiments were carried out to better understand dispersion patters of a single gas source placed at different locations of the room, including variations in height, release rate and air flow profiles. This dataset is denser and richer than what is currently available, i.e., 2D datasets in wind tunnels. We make it publicly available to enable the community to develop, validate, and compare new approaches related to gas sensing in complex environments.

scholarly journals ZnO Metal Oxide Semiconductor in Surface Acoustic Wave Sensors: A Review

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5118 ◽  
Author(s):  
Izabela Constantinoiu ◽  
Cristian Viespe
Keyword(s):  
Acoustic Wave ◽  
Metal Oxide ◽  
Surface Acoustic Wave ◽  
Synthesis Method ◽  
Metal Oxide Semiconductors ◽  
Oxide Semiconductor ◽  
Free Electrons ◽  
Oxide Semiconductors ◽  
Sensitive Film ◽  
Wave Sensors

Surface acoustic wave (SAW) gas sensors are of continuous development interest to researchers due to their sensitivity, short detection time, and reliability. Among the most used materials to achieve the sensitive film of SAW sensors are metal oxide semiconductors, which are highlighted by thermal and chemical stability, by the presence on their surface of free electrons and also by the possibility of being used in different morphologies. For different types of gases, certain metal oxide semiconductors are used, and ZnO is an important representative for this category of materials in the field of sensors. Having a great potential for the development of SAW sensors, the discussion related to the development of the sensitivity of metal oxide semiconductors, especially ZnO, by the synthesis method or by obtaining new materials, is suitable and necessary to have an overview of the latest results in this domain.

Progress of Research on Preparation of Micro Gas Sensors of Metal Oxide Semiconductors

2011 ◽  
Vol 143-144 ◽  
pp. 562-566 ◽  
Author(s):  
Wen An ◽  
Chun Ying Yang
Keyword(s):  
Metal Oxide ◽  
Gas Sensors ◽  
Gas Sensing ◽  
Sol Gel ◽  
Dip Coating ◽  
Metal Oxide Semiconductors ◽  
Preparation Technique ◽  
Fabrication Technique ◽  
Oxide Semiconductors ◽  
Existing Problems

New progress of research on the preparation technique of micro gas sensors of metal oxide semiconductors is introduced, such as the chemical treatment of the gas sensing film, the deposited technique of gas sensing film in the oxygen radical assisted EB evaporation, the technique of the multilayered film, the fabrication technique of the thermally oxidized, the technique of the electrode configuration, the fabrication technique of the miniaturized arrays by micro-molding in capillaries, the dip-coating of the sol-gel. And their features will be analyzed respectively, and their existing problems and future development directions will be given.

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