Автор: Peter K?? Название: Thin-Film Catalysts for Proton Exchange Membrane Water Electrolyzers and Unitized Regenerative Fuel Cells ISBN: 3030208583 ISBN-13(EAN): 9783030208585 Издательство: Springer Рейтинг: Цена: 93160.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: This work revolves around the hydrogen economy and energy-storage electrochemical systems. More specifically, it investigates the possibility of using magnetron sputtering for deposition of efficient thin-film anode catalysts with low noble metal content for proton exchange membrane water electrolyzers (PEM-WEs) and unitized regenerative fuel cells (PEM-URFCs). The motivation for this research derives from the urgent need to minimize the price of such electrochemical devices should they enter the mass production.Numerous experiments were carried out, correlating the actual in-cell performance with the varying position of thin-film catalyst within the membrane electrode assembly, with the composition of high-surface support sublayer and with the chemical structure of the catalyst itself. The wide arsenal of analytical methods ranging from electrochemical impedance spectroscopy through electrochemical atomic force microscopy to photoelectron spectroscopy allowed the description of the complex phenomena behind different obtained efficiencies.Systematic optimizations led to the design of a novel PEM-WE anode thin-film iridium catalyst which performs similarly to the standard counterparts despite using just a fraction of their noble metal content. Moreover, the layer-by-layer approach resulted in the design of a Ir/TiC/Pt bi-functional anode for PEM-URFC which is able to operate in both the fuel cell and electrolyzer regime and thus helps to cut the cost of the whole conversion system even further.
Название: Proton exchange membrane fuel cells ISBN: 0367384272 ISBN-13(EAN): 9780367384272 Издательство: Taylor&Francis Рейтинг: Цена: 67360.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание:
Large-scale commercialization of proton exchange membrane fuel cell (PEMFC) technology has been hindered by issues of reliability, durability, and cost, which are all related to the degradation of fuel cell performance. This degradation often has root causes in contamination from fuel, air streams, or system components. With contributions from international scientists and engineers active in PEMFC research, Proton Exchange Membrane Fuel Cells: Contamination and Mitigation Strategies discusses the impacts of contamination and the contamination mitigation strategies to improve fuel cell performance and durability.
The book covers the nature, sources, and electrochemistry of contaminants; their effects on fuel cell performance and lifetime; and the mechanisms of contamination. Exploring the major findings from experimental and theoretical studies in contamination-related research, the expert contributors present methods and tools used for diagnosing various contamination phenomena, along with strategies for mitigating the adverse effects of contamination. They also describe key issues in the future R&D of fuel cell contamination and control.
Helping to facilitate pioneering PEMFC R&D and accelerate sustainable commercialization, this book contains the latest research efforts and novel developments as well as important new directions in PEMFC contamination. It offers a comprehensive overview of nearly every aspect of fuel cell contamination, from fundamentals to applications.
Автор: Li, Hui Название: Proton Exchange Membrane Fuel Cells ISBN: 1439806780 ISBN-13(EAN): 9781439806784 Издательство: Taylor&Francis Рейтинг: Цена: 183750.00 T Наличие на складе: Нет в наличии.
Clean energy technologies are poised to play an important role in overcoming fossil fuel exhaustion and global pollution. Among these technologies, electrochemical energy storage and conversion are considered to be the most feasible, sustainable, and environmentally friendly. Proton exchange membrane (PEM) fuel cells are prime examples of electrochemical energy conversion technologies in action. Believed to be ideal sources of clean power, PEM fuel cells are replacing internal combustion and diesel engines in vehicles, as well as Pb-acid batteries and diesel generators in the emergency backup of telecommunications base stations and computer centers.
Written by an industry-leading scientist, Proton Exchange Membrane Fuel Cells explains the theoretical foundations of PEM fuel cells in relation to practical design and operation to not only help beginners grasp the essentials, but also guide industry professionals in tackling technical challenges. Useful to scientists, researchers, students, academics, and practicing engineers, the book covers the fundamentals, materials, components, modules, system architecture, applications, and current developmental status; offers real-world examples; and provides insight into advancing this sustainable clean technology.
Автор: Alhussein Albarbar; Mohmad Alrweq Название: Proton Exchange Membrane Fuel Cells ISBN: 3319889842 ISBN-13(EAN): 9783319889849 Издательство: Springer Рейтинг: Цена: 111790.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: This book examines the characteristics of Proton Exchange Membrane (PEM) Fuel Cells with a focus on deriving realistic finite element models. The book also explains in detail how to set up measuring systems, data analysis, and PEM Fuel Cells’ static and dynamic characteristics. Covered in detail are design and operation principles such as polarization phenomenon, thermodynamic analysis, and overall voltage; failure modes and mechanisms such as permanent faults, membrane degradation, and water management; and modelling and numerical simulation including semi-empirical, one-dimensional, two-dimensional, and three-dimensional models. It is appropriate for graduate students, researchers, and engineers who work with the design and reliability of hydrogen fuel cells, in particular proton exchange membrane fuel cells.
Автор: Jiao Kui, Wang Bowen, Du Qing Название: Water and Thermal Management of Proton Exchange Membrane Fuel Cells ISBN: 0323911161 ISBN-13(EAN): 9780323911160 Издательство: Elsevier Science Рейтинг: Цена: 158330.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание:
Water and Thermal Management of Proton Exchange Membrane Fuel Cells introduces the main research methods and latest advances in the water and thermal management of PEMFCs. The book introduces the transport mechanism of each component, including modeling methods at different scales, along with practical exercises. Topics include PEMFC fundamentals, working principles and transport mechanisms, characterization tests and diagnostic analysis, the simulation of multiphase transport and electrode kinetics, cell-scale modeling, stack-scale modeling, and system-scale modeling. This volume offers a practical handbook for researchers, students and engineers in the fields of proton exchange membrane fuel cells.
Proton exchange membrane fuel cells (PEMFCs) are high-efficiency and low-emission electrochemical energy conversion devices. Inside the PEMFC complex, physical and chemical processes take place, such as electrochemical reaction, multiphase flow and heat transfer. This book explores these topics, and more.
Автор: Wilkinson, David P. Название: Proton Exchange Membrane Fuel Cells ISBN: 1439806640 ISBN-13(EAN): 9781439806647 Издательство: Taylor&Francis Рейтинг: Цена: 178640.00 T Наличие на складе: Нет в наличии.
Автор: Alhussein Albarbar; Mohmad Alrweq Название: Proton Exchange Membrane Fuel Cells ISBN: 3319707264 ISBN-13(EAN): 9783319707266 Издательство: Springer Рейтинг: Цена: 111790.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: This book examines the characteristics of Proton Exchange Membrane (PEM) Fuel Cells with a focus on deriving realistic finite element models. It is appropriate for graduate students, researchers, and engineers who work with the design and reliability of hydrogen fuel cells, in particular proton exchange membrane fuel cells.
Автор: Santosh Yajnik Название: Proton Beam Therapy ISBN: 1489986715 ISBN-13(EAN): 9781489986719 Издательство: Springer Рейтинг: Цена: 130430.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Proton beam therapy is an emerging technology with promise of revolutionizing the treatment of cancer. While nearly half of all patients diagnosed with cancer in the US receive radiation therapy, the majority is delivered via electron accelerators, where photons are used to irradiate cancerous tissue. Because of the physical properties of photon beams, photons may deposit energy along their entire path length through the body. On the other hand, a proton beam directed at a tumor travels in a straight trajectory towards its target, gives off most of its energy at a defined depth called the Bragg peak, and then stops. While photons often deposit more energy within the healthy tissues of the body than within the cancer itself, protons can deposit most of their cancer-killing energy within the area of the tumor. As a result, in the properly selected patients, proton beam therapy has the ability to improve cure rates by increasing the dose delivered to the tumor and simultaneously reduce side-effects by decreasing the dose to surrounding tissue. The benefits of proton beam therapy in delivering a lethal hit to the target while sparing surrounding normal tissues from radiation are becoming applicable to an increasing number of patients and a growing list of conditions. In this book, the author will guide the reader through existing evidence supporting proton beam therapy for pediatric cancer, prostate cancer, lung cancer, brain tumors, spinal tumors, and several other conditions. The book will discuss which conditions are suitable for treatment with proton beam therapy, how the treatment is delivered, and the current data supporting its use.
Автор: E. F. Caldin; Victor Gold Название: Proton-Transfer Reactions ISBN: 0412127008 ISBN-13(EAN): 9780412127007 Издательство: Springer Рейтинг: Цена: 87070.00 T Наличие на складе: Есть у поставщика Поставка под заказ.
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