› › Noble Metal Free Bifunctional Oxygen Evolution And Oxygen Reduction Acidic Media Electro Catalysts

Noble Metal-free Bifunctional Oxygen Evolution and Oxygen Reduction Acidic Media Electro-catalysts

Author :

Publisher :

Page : pages

File Size : 14,88 MB

Release : 2016

Category :

ISBN :

Get eBook

Book Description

We report that identification of low cost, highly active, durable completely noble metal-free electro-catalyst for oxygen reduction reaction (ORR) in proton exchange membrane (PEM) fuel cells, oxygen evolution reaction (OER) in PEM based water electrolysis and metal air batteries remains one of the major unfulfilled scientific and technological challenges of PEM based acid mediated electro-catalysts. In contrast, several non-noble metals based electro-catalysts have been identified for alkaline and neutral medium water electrolysis and fuel cells. Furthermore, we report for the very first time, F doped Cu1.5Mn1.5O4, identified by exploiting theoretical first principles calculations for ORR and OER in PEM based systems. The identified novel noble metal-free electro-catalyst showed similar onset potential (1.43 V for OER and 1 V for ORR vs RHE) to that of IrO2 and Pt/C, respectively. The system also displayed excellent electrochemical activity comparable to IrO2 for OER and Pt/C for ORR, respectively, along with remarkable long term stability for 6000 cycles in acidic media validating theory, while also displaying superior methanol tolerance and yielding recommended power densities in full cell configurations.



Oxide Surfaces

Author :

Publisher : Elsevier

Page : 677 pages

File Size : 41,92 MB

Release : 2001-05-21

Category : Science

ISBN : 0080538312

Get eBook

Book Description

The book is a multi-author survey (in 15 chapters) of the current state of knowledge and recent developments in our understanding of oxide surfaces. The author list includes most of the acknowledged world experts in this field. The material covered includes fundamental theory and experimental studies of the geometrical, vibrational and electronic structure of such surfaces, but with a special emphasis on the chemical properties and associated reactivity. The main focus is on metal oxides but coverage extends from 'simple' rocksalt materials such as MgO through to complex transition metal oxides with different valencies.



Oxygen Reduction Reaction

Author : Kushal Sengupta

Publisher : Elsevier

Page : 524 pages

File Size : 33,78 MB

Release : 2022-06-14

Category : Technology & Engineering

ISBN : 0323907202

Get eBook

Book Description

Oxygen Reduction Reaction: Fundamentals, Materials and Applications covers the design, synthesis and performance efficacies of the entire spectrum of oxygen reduction catalysts, extrapolating down to their applications in practical, alternative, renewable energy devices. Catalysts covered include heme inspired iron-based, heme inspired non-iron-based, non-heme-based, noble metal-based, non-noble metal-based and metal-free homogeneous and heterogeneous catalysts. The book contains critical analyses and opinions from experts around the world, making it of interest to scientists, engineers, industrialists, entrepreneurs and students. Discusses the fundamental aspects of oxygen reduction reactions Offers a comprehensive analysis of the choice and development of catalyst materials for oxygen reduction reaction Reviews emerging catalyst systems for oxygen reduction reaction Includes analyses of catalytic performance parameters to evaluate their efficacy in oxygen reduction reactions under varied operating conditions Covers the importance of oxygen reduction reaction catalysts and processes in real-life applications



Novel Non-Precious Metal Electrocatalysts for Oxygen Electrode Reactions

Author : Hui Yang

Publisher : MDPI

Page : 190 pages

File Size : 24,78 MB

Release : 2019-11-01

Category : Science

ISBN : 303921540X

Get eBook

Book Description

Research on alternative energy harvesting technologies, conversion and storage systems with high efficiency, cost-effective and environmentally friendly systems, such as fuel cells, rechargeable metal-air batteries, unitized regenerative cells, and water electrolyzers has been stimulated by the global demand on energy. The conversion between oxygen and water plays a key step in the development of oxygen electrodes: oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), processes activated mostly by precious metals, like platinum. Their scarcity, their prohibitive cost, and declining activity greatly hamper large-scale applications. This issue reports on novel non-precious metal electrocatalysts based on the innovative design in chemical compositions, structure, and morphology, and supports for the oxygen reaction.



Metal-Air Batteries

Author : Xin-bo Zhang

Publisher : John Wiley & Sons

Page : 432 pages

File Size : 16,87 MB

Release : 2019-02-11

Category : Technology & Engineering

ISBN : 3527342796

Get eBook

Book Description

A comprehensive overview of the research developments in the burgeoning field of metal-air batteries An innovation in battery science and technology is necessary to build better power sources for our modern lifestyle needs. One of the main fields being explored for the possible breakthrough is the development of metal-air batteries. Metal-Air Batteries: Fundamentals and Applications offers a systematic summary of the fundamentals of the technology and explores the most recent advances in the applications of metal-air batteries. Comprehensive in scope, the text explains the basics in electrochemical batteries and introduces various species of metal-air batteries. The author-a noted expert in the field-explores the development of metal-air batteries in the order of Li-air battery, sodium-air battery, zinc-air battery and Mg-O2 battery, with the focus on the Li-air battery. The text also addresses topics such as metallic anode, discharge products, parasitic reactions, electrocatalysts, mediator, and X-ray diffraction study in Li-air battery. Metal-Air Batteries provides a summary of future perspectives in the field of the metal-air batteries. This important resource: -Covers various species of metal-air batteries and their components as well as system designation -Contains groundbreaking content that reviews recent advances in the field of metal-air batteries -Focuses on the battery systems which have the greatest potential for renewable energy storage Written for electrochemists, physical chemists, materials scientists, professionals in the electrotechnical industry, engineers in power technology, Metal-Air Batteries offers a review of the fundamentals and the most recent developments in the area of metal-air batteries.



Electrocatalysis in Fuel Cells

Author : Minhua Shao

Publisher : Springer Science & Business Media

Page : 748 pages

File Size : 31,19 MB

Release : 2013-04-08

Category : Technology & Engineering

ISBN : 1447149114

Get eBook

Book Description

Fuel cells are one of the most promising clean energy conversion devices that can solve the environmental and energy problems in our society. However, the high platinum loading of fuel cells - and thus their high cost - prevents their commercialization. Non- or low- platinum electrocatalysts are needed to lower the fuel cell cost. Electrocatalysis in Fuel Cells: A Non and Low Platinum Approach is a comprehensive book summarizing recent advances of electrocatalysis in oxygen reduction and alcohol oxidation, with a particular focus on non- and low-Pt electrocatalysts. All twenty four chapters were written by worldwide experts in their fields. The fundamentals and applications of novel electrocatalysts are discussed thoroughly in the book. The book is geared toward researchers in the field, postgraduate students and lecturers, and scientists and engineers at fuel cell and automotive companies. It can even be a reference book for those who are interested in this area.



Electrocatalysts for Fuel Cells and Hydrogen Evolution

Author : Abhijit Ray

Publisher : BoD – Books on Demand

Page : 130 pages

File Size : 26,40 MB

Release : 2018-12-05

Category : Science

ISBN : 1789848121

Get eBook

Book Description

The book starts with a theoretical understanding of electrocatalysis in the framework of density functional theory followed by a vivid review of oxygen reduction reactions. A special emphasis has been placed on electrocatalysts for a proton-exchange membrane-based fuel cell where graphene with noble metal dispersion plays a significant role in electron transfer at thermodynamically favourable conditions. The latter part of the book deals with two 2D materials with high economic viability and process ability and MoS2 and WS2 for their prospects in water-splitting from renewable energy.



Carbon-Based Metal-Free Catalysts

Author : Liming Dai

Publisher : John Wiley & Sons

Page : 746 pages

File Size : 45,66 MB

Release : 2018-08-29

Category : Technology & Engineering

ISBN : 3527811435

Get eBook

Book Description

Offering comprehensive coverage of this hot topic, this two-volume handbook and ready reference treats a wide range of important aspects, from synthesis and catalytic properties of carbon materials to their applications as metal-free catalysts in various important reactions and industrial processes. Following a look at recent advances in the development of carbon materials as carbon-based metal-free catalysts, subsequent sections deal with a mechanistic understanding for the molecular design of efficient carbon-based metal-free catalysts, with a special emphasis on heteroatom-doped carbon nanotubes, graphene, and graphite. Examples of important catalytic processes covered include clean energy conversion and storage, environmental protection, and synthetic chemistry. With contributions from world-leading scientists, this is an indispensable source of information for academic and industrial researchers in catalysis, green chemistry, electrochemistry, materials science, nanotechnology, energy technology, and chemical engineering, as well as graduates and scientists entering the field.





Electrochemical Water Splitting

Author : Inamuddin

Publisher : Materials Research Forum LLC

Page : 250 pages

File Size : 48,21 MB

Release : 2019-10-25

Category : Technology & Engineering

ISBN : 1644900459

Get eBook

Book Description

Aiming at the generation of hydrogen from water, electrochemical water splitting represents a promising clean technology for generating a renewable energy resource. The book reviews the fundamental aspects and describes recent research advances. Properties and characterization methods for various types of electrocatalysts are discussed, including noble metals, earth-abundant metals, metal-organic frameworks, carbon nanomaterials and polymers. Keywords: Electrochemical Water Splitting, Renewable Energy Resource, Electrocatalysts, Oxygen Evolution Reaction (OER), Noble Metal Catalysts, Earth-Abundant Metal Catalysts, MOF Catalysts, Carbon-based Nanocatalysts, Polymer Catalysts, Transition Metal-based Electrocatalysts, Fe-based Electrocatalysts, Co-based Electrocatalysts, Ni-based Electrocatalysts, Metal Free Catalysts, Transition-Metal Chalcogenides, Prussian Blue Analogues.