Metal Oxide-Graphene Nanohybrids for Fuel Cells

Metal Oxide-Graphene Nanohybrids for Fuel Cells PDF Author: Sushanta Kumar Das
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 0

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Book Description
Metal oxide-graphene nanohybrids have emerged as promising electrocatalysts for various fuel cell applications. These nanohybrids exhibit excellent electrochemical properties due to their unique structural features and enhanced surface area. In recent years, the development of metal oxide-graphene nanohybrids has gained significant attention in the field of energy conversion and storage, particularly for proton exchange membrane fuel cells and direct methanol fuel cells. The oxygen reduction reaction (ORR) is a key reaction in fuel cells, and metal oxide-graphene nanohybrids have shown remarkable ORR activity. These nanohybrids possess high electrocatalytic activity, which can enhance the efficiency of fuel cells. In addition, metal oxide-graphene nanohybrids have shown great potential as anode and cathode catalysts in fuel cells. The use of metal oxide-graphene nanohybrids in fuel cells offers several advantages, including high energy conversion efficiency, sustainability, and reduced environmental impact. Carbon-based materials, such as graphene, are ideal candidates for fuel cell applications due to their excellent electrical conductivity, surface area, and chemical stability. The incorporation of metal oxides into graphene-based nanohybrids can further enhance their electrocatalytic properties. The development of metal oxide-graphene nanohybrids for fuel cell applications involves several challenges, including the selection of appropriate metal oxides, synthesis methods, and optimization of the electrocatalytic activity. The performance and stability of the electrocatalysts are also critical factors for long-term durability of fuel cells. In addition, the ionomer and ion exchange membrane materials used in fuel cells can affect the proton conductivity and electron conductivity, which can impact the overall performance of the fuel cell. Overall, the development of metal oxide-graphene nanohybrids for fuel cell applications has the potential to revolutionize the field of energy conversion and storage. This technology can provide a sustainable and efficient energy source for various applications, including transportation, industrial processes, and residential power generation. Further research is needed to optimize the electrocatalytic activity and durability of these nanohybrids, and to develop scalable and cost-effective synthesis methods for their production.

Metal Oxide-Graphene Nanohybrids for Fuel Cells

Metal Oxide-Graphene Nanohybrids for Fuel Cells PDF Author: Sushanta Kumar Das
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 0

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Book Description
Metal oxide-graphene nanohybrids have emerged as promising electrocatalysts for various fuel cell applications. These nanohybrids exhibit excellent electrochemical properties due to their unique structural features and enhanced surface area. In recent years, the development of metal oxide-graphene nanohybrids has gained significant attention in the field of energy conversion and storage, particularly for proton exchange membrane fuel cells and direct methanol fuel cells. The oxygen reduction reaction (ORR) is a key reaction in fuel cells, and metal oxide-graphene nanohybrids have shown remarkable ORR activity. These nanohybrids possess high electrocatalytic activity, which can enhance the efficiency of fuel cells. In addition, metal oxide-graphene nanohybrids have shown great potential as anode and cathode catalysts in fuel cells. The use of metal oxide-graphene nanohybrids in fuel cells offers several advantages, including high energy conversion efficiency, sustainability, and reduced environmental impact. Carbon-based materials, such as graphene, are ideal candidates for fuel cell applications due to their excellent electrical conductivity, surface area, and chemical stability. The incorporation of metal oxides into graphene-based nanohybrids can further enhance their electrocatalytic properties. The development of metal oxide-graphene nanohybrids for fuel cell applications involves several challenges, including the selection of appropriate metal oxides, synthesis methods, and optimization of the electrocatalytic activity. The performance and stability of the electrocatalysts are also critical factors for long-term durability of fuel cells. In addition, the ionomer and ion exchange membrane materials used in fuel cells can affect the proton conductivity and electron conductivity, which can impact the overall performance of the fuel cell. Overall, the development of metal oxide-graphene nanohybrids for fuel cell applications has the potential to revolutionize the field of energy conversion and storage. This technology can provide a sustainable and efficient energy source for various applications, including transportation, industrial processes, and residential power generation. Further research is needed to optimize the electrocatalytic activity and durability of these nanohybrids, and to develop scalable and cost-effective synthesis methods for their production.

Applications of Graphene and Graphene-Oxide based Nanomaterials

Applications of Graphene and Graphene-Oxide based Nanomaterials PDF Author: Sekhar Ray
Publisher: William Andrew
ISBN: 0323375227
Category : Technology & Engineering
Languages : en
Pages : 93

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Book Description
Carbon nanomaterials have a unique place in Nanoscience owing to their exceptional electrical, thermal, chemical and mechanical properties and have found application in areas as diverse as composite materials, energy storage and conversion, sensors, drug delivery, field emission devices and nano-scale electronic components. Conjugated carbon nanomaterial covers the areas of carbon nanotubes, fullerenes and graphene. Graphene is the newest of the carbon nanomaterials and promises to be a very active field. Already since its isolation in 2004 it has grabbed the attention of the chemistry, materials and physics communities. It promises to rival carbon nanotubes in terms of properties and potential applications with the number of publications rising from ca. 130 in 2005 to ca. 2,800 in 2010. In this short book Sekhar Ray gives an overview on graphene and graphene-oxide with a strong focus on applications. Structured in three chapters, one on graphene, one on graphene-oxide and one on graphene based nanoparticles his resource describes in each chapter the preparation (including synthesis and functionalization) and material properties before detailing a whole range of applications. Ray finishes each chapter with information on remaining challenges and perspectives. - Written by an expert in the field who, during his last 17 years of research, has published more than 80 peer reviewed articles in recognized international journals - Gives full-chapter overviews on Graphene, Graphene-Oxide, and Graphene based nanoparticles - Focusses on applications

Graphene-based Energy Devices

Graphene-based Energy Devices PDF Author: A. Rashid bin Mohd Yusoff
Publisher: John Wiley & Sons
ISBN: 3527690301
Category : Technology & Engineering
Languages : en
Pages : 464

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Book Description
This first book dedicated to the topic provides an up-to-date account of the many opportunities graphene offers for robust, workable energy generation and storage devices. Following a brief overview of the fundamentals of graphene, including the main synthesis techniques, characterization methods and properties, the first part goes on to deal with graphene for energy storage applications, such as lithium-ion batteries, supercapacitors and hydrogen storage. The second part is concerned with graphene-based energy-generation devices, in particular conventional as well as microbial and enzymatic fuel cells, with chapters on graphene photovoltaics rounding off the book. Throughout, device architectures are not only discussed on a laboratory scale, but also ways for upscaling to an industrial level, including manufacturing processes and quality control. By bridging academic research and industrial development this is invaluable reading for materials scientists, physical chemists, electrochemists, solid state physicists, and those working in the electrotechnical industry.

Metal, Metal-Oxides and Metal Sulfides for Batteries, Fuel Cells, Solar Cells, Photocatalysis and Health Sensors

Metal, Metal-Oxides and Metal Sulfides for Batteries, Fuel Cells, Solar Cells, Photocatalysis and Health Sensors PDF Author: Saravanan Rajendran
Publisher: Springer Nature
ISBN: 3030637913
Category : Science
Languages : en
Pages : 350

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Book Description
This book summarizes recent findings on the use of new nanostructured materials for biofuels, batteries, fuel cells, solar cells, supercapacitors and health biosensors. Chapters describe principles and how to choose a nanomaterial for specific applications in energy, environment and medicine.

Graphene-based Nanotechnologies for Energy and Environmental Applications

Graphene-based Nanotechnologies for Energy and Environmental Applications PDF Author: Mohammad Jawaid
Publisher: Elsevier
ISBN: 0128158123
Category : Technology & Engineering
Languages : en
Pages : 448

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Book Description
Graphene-Based Nanotechnologies for Energy and Environmental Applications explores how graphene-based materials are being used to make more efficient, reliable products and devices for energy storage and harvesting and environmental monitoring and purification. The book outlines the major sustainable, recyclable, and eco-friendly methods for using a range of graphene-based materials in innovative ways. It represents an important information source for materials scientists and engineers who want to learn more about the use of graphene-based nanomaterials to create the next generation of products and devices in energy and environmental science. Graphene-based nanotechnologies are at the heart of some of the most exciting developments in the fields of energy and environmental research. Graphene has exceptional properties, which are being used to create more effective products for electronic systems, environmental sensing devices, energy storage, electrode materials, fuel cell, novel nano-sorbents, membrane and photocatalytic degradation of environmental pollutants especially in the field of water and wastewater treatment. - Covers synthesis, preparation and application of graphene based nanomaterials from different sources - Demonstrates systematic approaches to the design, synthesis, characterization and applications of graphene-based nanocomposites in order to establish their important relationship with end-user applications - Discusses the challenges in ensuring reliability and scalability of graphene-based nanotechnologies

Electrocatalytic Applications of Graphene-Metal Oxide Nanohybrid Materials

Electrocatalytic Applications of Graphene-Metal Oxide Nanohybrid Materials PDF Author: Arnab Halder
Publisher:
ISBN:
Category : Science
Languages : en
Pages :

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Book Description
Development of state-of-the-art electrocatalysts using commercially available precursors with low cost is an essential step in the advancement of next-generation electrochemical energy storage/conversion systems. In this regard, noble metal-free and graphene-supported nanocomposites are of particular interest. Graphene-based nanocomposite is an excellent candidate as energy-device and sensor-related electrode materials, largely due to their high electrical conductivity, large specific surface area, high-speed electron/heat mobility, and reasonably good mechanical strength. Among many types of graphene-based composite materials, graphene-metal oxide nanohybrids hold great promise toward engineering efficient electrocatalysts and have attracted increasing interest in both scientific communities and industrial partners around the world. The goal of this chapter is primarily set on an overview of cutting-edge developments in graphene-metal oxide nanohybrid materials, with the recently reported results from worldwide research groups. This chapter is presented first with an introduction, followed by synthetic methods and structural characterization of nanocomposites, an emphasis on their applications in energy and sensor-related fields, and finally completed with brief conclusions and outlook.

Handbook of Graphene

Handbook of Graphene PDF Author: Cengiz Ozkan
Publisher: John Wiley & Sons
ISBN: 1119469724
Category : Technology & Engineering
Languages : en
Pages : 608

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Book Description
The fifth volume in a series of handbooks on graphene research and applications Graphene is a valuable nanomaterial used in technology. The Handbook of Graphene: Graphene in Energy, Healthcare, and Environmental Applications is the fifth volume in the handbook series. The book's topics include: graphene nanomaterials in energy and environment applications and graphene used as nanolubricant. Within the handbook, three-dimensional graphene materials are discussed, as are synthesis and applications in electrocatalysts and electrochemical sensors. The battery topics cover: graphene and graphene-based hybrid composites for advanced rechargeable battery electrodes; graphene-based materials for advanced lithium-ion batteries; graphene-based materials for supercapacitors and conductive additives of lithium ion batteries. The book's graphene-based sensor information addresses flexible actuators, sensors, and supercapacitors.

Graphene Oxide-Metal Oxide and other Graphene Oxide-Based Composites in Photocatalysis and Electrocatalysis

Graphene Oxide-Metal Oxide and other Graphene Oxide-Based Composites in Photocatalysis and Electrocatalysis PDF Author: Jiaguo Yu
Publisher: Elsevier
ISBN: 0323852882
Category : Technology & Engineering
Languages : en
Pages : 308

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Book Description
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

Graphene Oxide

Graphene Oxide PDF Author: Wei Gao
Publisher: Springer
ISBN: 3319155008
Category : Technology & Engineering
Languages : en
Pages : 154

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Book Description
This book focuses on a group of new materials labeled "graphene oxides." It provides a comprehensive overview of graphene oxide-based nanomaterials in terms of their synthesis, structures, properties, and extensive applications in catalysis, separation, filtration, energy storage and conversion. The book also covers emerging research on graphite oxides and the impact of the research on fundamental and applied sciences.

Nanohybrid Materials for Treatment of Textiles Dyes

Nanohybrid Materials for Treatment of Textiles Dyes PDF Author: Akil Ahmad
Publisher: Springer Nature
ISBN: 9819939011
Category : Technology & Engineering
Languages : en
Pages : 489

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Book Description
This book covers the various aspects of nanohybrid materials and its composites for their application in treatment of toxic textiles dyes for cleaning the environment especially water and wastewater. The book first looks into the various preparation and characterization techniques for nanohybrid materials. The replacement of other conventional materials with highly efficient (high surface area, pore size, and chemical and mechanical strength) nanohybrid materials and their application in the field of environmental purification through treatment of textile dyes is highlighted in the later part of the book. The book caters to students, researchers, and scientists who are working in the field of wastewater treatment for incorporating novel materials to remove toxic textile dyes from contaminated wastewater.