Metal oxide nanomaterials exhibit interesting electrical and photochemical properties because of their size, stability, and high surface area that render them as great choices in fabricating alternative electrode materials for electrochemical energy storage and sensor applications. The hybridization of metal oxides with other materials lead to the improvement in electrical conductivity, stability, and electron transfer kinetics during the electrocatalytic reactions. These key factors result in greater sensitivity of the sensor materials towards the analyte molecules. This book reviews the electrochemical determination of a variety of toxic chemical contaminants using metal oxide-based nanocomposite materials. Ultrasensitive and selective detection of toxic chemical contaminants is important and demanding, especially for monitoring and controlling environmental pollution. In recent years, metal oxide-based nanocomposite materials have shown high potential in the electrochemical detection of heavy metals, inorganic anions, phenolic compounds, pesticides, and chemical warfare reagents. Metal Oxides in Nanocomposite-Based Electrochemical Sensors for Toxic Chemicals comprehensively reviews this topic. In addition to the instrumental simplicity, the electrochemical methods show the improved sensor performance through the synergetic effect of metal oxide and other electroactive nanomaterial present in the nanocomposite. Thus, detailed information on the electrochemical sensing of toxic chemical contaminants using metal oxide-based nanomaterials are discussed. The recent progress in developing electrochemical sensors using metal oxide-based nanocomposite materials and perspectives on future opportunities in sensor research and development are addressed in the book. - Introduces the fundamentals of electrochemical sensors and fabrication of metal oxide sensors of toxic chemicals - Reviews binary, doped, metal oxide-metal, metal oxide-carbon, metal oxide-polymer, metal-boron nitride, metal oxide-clay, and metal oxide- MOF electrodes - Systematically addresses the fabrication, synthesis, performance, mechanisms, detection limits, sensitivity, advantages and limitations and future perspectives of a wide range of metal oxide-based electrochemical sensors

Graphene-based nanocomposites are very useful in detecting toxic chemicals such as heavy metals, inorganic anions, phenolic compounds, pesticides, and chemical warfare agents. The book presents recent progress on relevant topics: Toxicity of chemicals, importance of electrochemical sensors, different types of graphene-based nanomaterials, Neurotoxins and electroanalytical detection of toxic chemicals. Keywords: Graphene-based Nanocomposites, Electrochemical Sensors, Toxic Chemicals, Sensors for Toxic Molecules, Graphene-Metal Oxides, Graphene-Metal Chalcogenides, Graphene-Polymer Nanocomposites, Graphene-Carbon Nanotubes, Graphene-Carbon Nitrides, Graphene-MOF Composites, Heavy Metals, Phenolic Compounds, Pesticides, Chemical Warfare Agents.

The book focuses on novel sensor materials and their environmental and healthcare applications, such as NO2 detection, toxic gas and biosensing, hydrazine determination, glucose sensing and the detection of toxins and pollutants on surfaces. Materials covered include catalytic nanomaterials, metal oxides, perovskites, zeolites, spinels, graphene-based gas sensors, CNT/Ni nanocomposites, glucose biosensors, single and multi-layered stacked MXenes, black phosphorus, transition metal dichalcogenides and P3OT thin films. Keywords: Toxic Gas Sensors, Biosensors, Nitrogen Dioxide Detection, Hydrazine Determination, Glucose Sensing, Catalytic Nanomaterials, Metal Oxides, Perovskites, Zeolites, Spinels, Graphene-based Gas Sensors, CNT/Ni Nanocomposites, Mxenes, Black Phosphorus, Transition Metal Dichalcogenides, P3OT Thin Films.

With an unprecedented population boom and rapid industrial development, environmental pollution has become a severe problem for the ecosystem and public health. Classical techniques for sensing and determining environmental contaminants often require complex pretreatments, expensive equipment, and longer testing times. Therefore, new, and state-of-the-art sensing technologies possessing the advantages of excellent sensitivity, rapid detection, ease of use, and suitability for in situ, real-time, and continuous monitoring of environmental pollutants, are highly desirable. Metal-Organic Frameworks-based Hybrid Materials for Environmental Sensing and Monitoring covers the current-state-of-the-art hybrid nanomaterials based on metal-organic frameworks for electrochemical monitoring purposes. Accomplished authors cover various synthetic routes, methods, and theories behind enhancing the electrochemical properties and applications of metal-organic frameworks-based hybrid nanomaterials for electrochemical sensing of environmental pollutants under one roof. This book is essential reading for all academic and industrial researchers working in the fields of materials science and nanotechnology.

Graphene-based nanocomposites are very useful in detecting toxic chemicals such as heavy metals, inorganic anions, phenolic compounds, pesticides, and chemical warfare agents. The book presents recent progress on relevant topics: Toxicity of chemicals, importance of electrochemical sensors, different types of graphene-based nanomaterials, Neurotoxins and electroanalytical detection of toxic chemicals. Keywords: Graphene-based Nanocomposites, Electrochemical Sensors, Toxic Chemicals, Sensors for Toxic Molecules, Graphene-Metal Oxides, Graphene-Metal Chalcogenides, Graphene-Polymer Nanocomposites, Graphene-Carbon Nanotubes, Graphene-Carbon Nitrides, Graphene-MOF Composites, Heavy Metals, Phenolic Compounds, Pesticides, Chemical Warfare Agents.

This book highlights recent developments related to fabrication and utilization of nanoparticle-engineered metal matrices and their composites linked to the heavy industries, temperature fasteners, high-pressure vessels, and heavy turbines, etc. The mechanical properties of newly developed metallic composites are discussed in terms of tensile modulus, hardness, ductility, crack propagation, elongation, and chemical inertness. This book presents the design, development, and implementation of state-of-the-art methods linked to nanoparticle-reinforced metal nanocomposites for a wide variety of applications. Therefore, in a nutshell, this book provides a unique platform for researchers and professionals in the area of nanoparticle-reinforced metal nanocomposites.

Approx.530 pages Provides an overview of the material preparation and synthesis strategies of metal oxide composite and metal oxide hybrid materials for use in gas and humidity sensors Reviews emerging advanced metal oxide materials such as perovskites, spinel ferrites, and quaternary materials for gas and VOC sensors Discusses the potential opportunities and challenges to be circumvented in the use of metal oxide materials to enable new sensor technologies

Complex and Composite Metal Oxides for Gas, VOC, and Humidity Sensors focuses on an overview of the advanced nanocomposite metal oxide materials for use in sensors for environmental monitoring applications. Volume 1 Fundamentals and Approaches introduces the ground rules essential for the development of smart gas, VOC and humidity sensors. This volume familiarizes researchers with the different sensors (resistive, electrolyte, FET, optical etc.) developed on various properties that includes electrical, SPR, luminescence, fiber optics etc. fabricated using metal oxide hybrids and nanocomposites. - Introduces the fundamentals of electrical and optical gas and humidity sensors - Reviews metal oxide hybrid materials for gas and humidity sensor applications, including metal oxide/polymer and metal oxide/carbon composite materials - Discusses complex metal oxide compounds and composite materials for use in gas, VOC, and humidity sensors

Metal Oxide–Carbon Hybrid Materials: Synthesis, Properties and Applications reviews the advances in the fabrication and application of metal oxide–carbon-based nanocomposite materials. Their unique properties make them ideal materials for gas-sensing, photonics, catalysis, opto-electronic, and energy-storage applications. In the first section, the historical background to the hybrid materials based on metal oxide–carbon and the hybridized metal oxide composites is provided. It also highlights several popular methods for the preparation of metal oxide–carbon composites through solid-state or solution-phase reactions, and extensively discusses the materials' properties. Fossil fuels and renewable energy sources cannot meet the ever-increasing energy demands of an industrialized and technology-driven global society. Therefore, the role of metal oxide–carbon composites in energy generation, hydrogen production, and storage devices, such as rechargeable batteries and supercapacitors, is of extreme importance. These problems are discussed in in the second section of the book. Rapid industrialization has resulted in serious environmental issues which in turn have caused serious health problems that require the immediate attention of researchers. In the third section, the use of metal oxide–carbon composites in water purification, photodegradation of industrial contaminants, and biomedical applications that can help to clean the environment and provide better healthcare solutions is described. The final section is devoted to the consideration of problems associated with the development of sensors for various applications. Numerous studies performed in this area have shown that the use of composites can significantly improve the operating parameters of such devices. Metal Oxide–Carbon Hybrid Materials: Synthesis, Properties and Applications presents a comprehensive review of the science related to metal oxide–carbon composites and how researchers are utilizing these materials to provide solutions to a large array of problems. - Reviews the fundamental properties and fabrication methods of metal-oxide–carbon composites - Discusses applications in energy, including energy generation, hydrogen production and storage, rechargeable batteries, and supercapacitors - Includes current and emerging applications in environmental remediation and sensing

Graphene Oxide-Metal Oxide and other Graphene Oxide-Based Composites in Photocatalysis and Electrocatalysis reflects on recent progress and challenges in graphene-metal oxide composites. The book reviews synthetic strategies, characterization methods and applications in photocatalysis and electrocatalysis. Graphene-metal oxides, graphene-novel metals and other composites intended for sustainable energy production, energy storage, and environmental development such as H2 production, CO2 reduction, pollutant removal, supercapacitors and lithium ion batteries are covered. Overall, this book presents a comprehensive, systematic, and up-to-date summary on graphene oxide-based materials. Graphene oxide and related composite materials bring new perspectives and prospects to both photocatalysts and electrocatalysts. The collective and synergistic effect between graphene oxide and metal oxide are manifold. The significance of the relationship among these groups of materials, their structures and performance is emphasized. - Introduces the fundamentals of graphene oxides, their derivatives, common processes, principles and requirements for photocatalysis and electrocatalysis - Reviews graphene-oxides for photocatalysis applications in H2 production, CO2 reduction, environment remediation, and more - Covers graphene-oxides for electrocatalysis applications in energy, including supercapacitors and lithium-ion batteries