Advanced Applications of Ionic Liquids

Advanced Applications of Ionic Liquids
Author: Jamal Akhter Siddique
Publisher: Elsevier
Total Pages: 569
Release: 2022-11-02
Genre: Science
ISBN: 0323984002
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Advanced Applications of Ionic Liquids discusses the intersection of nanotechnology with ionic liquids (ILs) and materials, along with opportunities for advanced engineering applications in various research fields. Novel materials at nano scales with ILs creates an upsurge in the thermal and electrochemical constancy of the nano scale particles, making them ideal for industrial applications. The implementation of ILs at nano scale includes an interaction of constituents, which is beneficial for electron transfer reactions. These new composites can be implemented as sensors, electronics, catalysts and photonics. Including ILs in polymer composites enhance electrochemical consistency, govern particle size, upsurge conductivity, reduce toxicity, and more. This book is a comprehensive reference for researchers working with IL based technologies for environmental and energy applications. Covers all industrial aspects and advanced applications of ionic liquids (ILs) Discusses the advanced applications of ILs across multiple fields, including industrial chemistry and chemical engineering Includes a discussion of the use of ionic liquids in functional polymers, with applications for catalysis, energy conservation, sensors, and more

Semiconductor Gas Sensors

Semiconductor Gas Sensors
Author: Raivo Jaaniso
Publisher: Elsevier
Total Pages: 571
Release: 2013-08-31
Genre: Technology & Engineering
ISBN: 0857098667
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Semiconductor gas sensors have a wide range of applications in safety, process control, environmental monitoring, indoor or cabin air quality and medical diagnosis. This important book summarises recent research on basic principles, new materials and emerging technologies in this essential field. The first part of the book reviews the underlying principles and sensing mechanisms for n- and p-type oxide semiconductors, introduces the theory for nanosize materials and describes the role of electrode–semiconductor interfaces. The second part of the book describes recent developments in silicon carbide- and graphene-based gas sensors, wide bandgap semiconductor gas sensors and micromachined and direct thermoelectric gas sensors. Part 3 discusses the use of nanomaterials for gas sensing, including metal oxide nanostructures, quantum dots, single-alled carbon nanotubes and porous silicon. The final part of the book surveys key applications in environmental monitoring, detecting chemical warfare agents and monitoring gases such as carbon dioxide. Semiconductor gas sensors is a valuable reference work for all those involved in gas monitoring, including those in the building industry, environmental engineers, defence and security specialists and researchers in this field. Provides an overview of resistor and non-resistor sensors Reviews developments in gas sensors and sensing methods, including graphene based sensors and direct thermoelectric sensors Discusses the use of nanomaterials in gas sensing

Green Sustainable Process for Chemical and Environmental Engineering and Science

Green Sustainable Process for Chemical and Environmental Engineering and Science
Author: Dr. Inamuddin
Publisher: Elsevier
Total Pages: 618
Release: 2023-01-13
Genre: Technology & Engineering
ISBN: 032399430X
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Green Sustainable Process for Chemical and Environmental Engineering and Science: Carbon Dioxide Capture and Utilization explores advanced technologies based on CO2 utilization. The book provides an overview on the conversion and utilization of CO2, extraction techniques, heterogeneous catalysis, green solvent, industrial approaches, and commodity products through energy-intensive processes. In addition, it highlights lifecycle assessment and biological and engineering strategies for CO2 utilization. Each chapter presents challenges in the processes and future perspectives for the application of CO2 conversion and utilization. Reviews carbon dioxide conversion and sequestration Provides literature on methods of carbon dioxide conversion and sequestration Discusses process, mechanism and materials used in carbon dioxide conversion and sequestration

An Electrolyte Gated Carbon Nanotube Field-effect Transistor Device

An Electrolyte Gated Carbon Nanotube Field-effect Transistor Device
Author: Khanh Van Tu
Publisher:
Total Pages: 63
Release: 2014
Genre: Carbon nanotubes
ISBN:
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This thesis describes the preparation of ultrathin films of single walled carbon nanotubes (SWCNT) and their application in a quasi field-effect transistor (FET) configuration. Like other SWCNT-FET devices that have been reported in the literature, our design has a SWCNT layer serving as the channel which is contacted at each end by gold electrodes that act as source and drain, respectively. However, in our electrolyte-gated (EG) FET layout, there is a novel gate design. The gate is an electrolyte solution that is in direct physical and strongly capacitive electrical contact with the SWCNT channel layer, which distinguishes it from most designs wherein the SWCNT film is separated from the gate electrode by a dielectric film of at least 10 nm. The long-term goal of the research is to develop the EGFET as an electrochemical sensor. Prior EGFET prototypes from our laboratory used thick SWCNT films and showed some chemical sensitivity. The present technological hurdle is the preparation of ultrathin SWCNT films. To this end, we have chemically modified both the SWCNT sidewalls and the glass substrate surfaces thus producing much thinner and more conductive SWCNT films. We also succeeded in employing these films in a set of exploratory EGFET experiments to detect various redox coupling chemicals. It is hoped that similarly produced and configured EGFETs will become the basis of a new type of chemical sensor.

Field-effect Transistor Biosensors for Rapid Pathogen Detection

Field-effect Transistor Biosensors for Rapid Pathogen Detection
Author: Naif H M Al-Hardan
Publisher: Royal Society of Chemistry
Total Pages: 211
Release: 2024-05-03
Genre: Science
ISBN: 1837673438
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Looking to prevent future outbreaks of deadly pathogens by early detection? Infectious diseases continue to be a challenge that necessitates increased precision in detection and integration to achieve accurate diagnosis at the point of care (PoC). Field-effect transistors (FETs) have been investigated widely as biosensors for pathogen detection, with advantages such as label-free and real-time detection capabilities. These biosensors have: a high level of sensitivity, a remarkable capacity for miniaturization, a molecular minimum limit of detection (LoD), and seamless integration with semiconductor technology In this title, we have invited expert scientific researchers to share their experience in this field. This book focuses on the application and possibility of FETs as biosensors, for rapid and real time detection of pathogens that affect human life. The lack of commercially available efficient devices that can be deployed for this task resulted in the recent global spread of the SARS-CoV-19 virus. The book is an attempt to keep interested parties up to date. Aimed at scientists and engineers (researchers, academics, and postgraduate students) who are interested in developing and using BioFET based sensors, the information in this book is crucial to help prevent future outbreaks of pathogens which bring with them significant impacts on human health and wellbeing.