Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Solid oxide fuel cells offer great prospects for the sustainable, clean and safe conversion of various fuels into electrical energy. In this thesis, the performance-determining loss processes for the cell operation on reformate fuels are elucidated via electrochemical impedance spectroscopy. Model-based analyses reveal the electrochemical fuel oxidation mechanism, the coupling of fuel gas transport and reforming chemistry and the impact of fuel impurities on the degradation of each loss process.

SOFC --- Electrochemistry --- Reforming Chemistry --- Impedance Spectroscopy --- Modeling

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This thesis introduces (i) amendments to basic electrochemical measurement techniques in the time and frequency domain suitable for electrochemical energy conversion systems like fuel cells and batteries, which enable shorter measurement times and improved precision in both measurement and parameter identification, and (ii) a modeling approach that is able to simulate a technically relevant system just by information gained through static and impedance measurements of laboratory size cells.

Electrochemical Impedance Spectroscopy (EIS), Solid Oxide Fuel Cell (SOFC), Lithium-Ion Battery (LIB)

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

ca. 200 words; this text will present the book in all promotional forms (e.g. flyers). Please describe the book in straightforward and consumer-friendly terms.[Selective and quantitative detection of different kinds of biocomponents plays an important role in biomedical applications, clinical diagnostics, environmental monitoring, toxicology, regenerative medicine and drug delivery. Therefore, multidisciplinary area of magnetic biosensing have been extensively developed in recent years, aiming to create compact analytical devices for non-expensive and low time consuming analysis provided at the point of care by non-skilled personnel. Biological samples exhibit very low magnetic background, and thus highly sensitive measurements of magnetic labels or magnetic nanoparticles enriched units can be performed without further processing. A magnetic biosensor is a compact analytical device in which magnetic transducer converts a magnetic field variation into a change of frequency, current, voltage, etc. Different types of magnetic effects are capable of creating magnetic biosensors with extra high sensitivity. This book describes interesting examples of magnetic materials based biosensors, including the synthesis of model materials for biosensor development, new engineering solutions and theoretical contributions on the magnetic biosensor sensitivity. Book contains 13 research works representing international multidisciplinary teams from Austria, China, Germany, Greece, Iran, Russia, Serbia, Spain, Taiwan and United States of America. It can be useful for PHD students and researches working in the field of magnetic nanomaterials and biomedical applications.

Magnetic biosensors --- Magnetic nanoparticles --- Ferrogels --- Magnetic label detection --- Label free magnetic detection --- Magnetic relaxation --- Electrochemical impedance spectroscopy

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

In this book, a new procedure to analyze lithium-ion cells is introduced. The cells are disassembled to analyze their components in experimental cell housings. Then, Electrochemical Impedance Spectroscopy, time domain measurements and the Distribution function of Relaxation Times are applied to obtain a deep understanding of the relevant loss processes. This procedure yields a notable surplus of information about the electrode contributions to the overall internal resistance of the cell.

Lithium-Ionen Zelle, Impedanzspektroskopie, Verteilung der Relaxationszeiten, Verlustprozesse, Modell, lithium-ion cell, impedance spectroscopy, distribution of relaxation times, loss processes, model

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Nanostructured materials exploit physical phenomena and mechanisms that cannot be derived by simply scaling down the associated bulk structures and phenomena; furthermore, new quantum effects come into play in nanosystems. The exploitation of these emerging nanoscale interactions prompts the innovative design of nanomaterials. Understanding the behavior of materials on all length scales—from the nanostructure up to the macroscopic response—is a critical challenge for materials science. Modern analytical technologies based on synchrotron radiation (SR) allow for the non-destructive investigation of the chemical, electronic, and magnetic structure of materials in any environment. SR facilities have developed revolutionary new ideas and experimental setups for characterizing nanomaterials, involving spectroscopy, diffraction, scatterings, microscopy, tomography, and all kinds of highly sophisticated combinations of such investigation techniques. This book is a collection of contributions addressing several aspects of synchrotron radiation as applied to the investigation of chemical, electronic, and magnetic structure of nanostructured materials. The results reported here provide not only an interesting and multidisciplinary overview of the chemicophysical investigations of nanostructured materials carried out by state-of-the-art SR-induced techniques, but also an exciting glance into the future perspectives of nanomaterial characterization methods.

synchrotron radiation induced spectroscopies --- XPS --- NEXAFS --- nanostructures --- titanium alloy --- self-assembling peptides --- bioactive materials --- room temperature ionic liquids --- in situ X-ray photoelectron spectroscopy --- binding energies --- cyclic voltammetry --- electrochemical impedance spectroscopy --- micro-mesoporous carbon electrode --- supercapacitor materials --- thin films --- multilayers --- thermal conductivity --- thermal expansion --- laser heating --- synchrotron pump-probe powder scattering --- nuclear forward scattering --- metallic glasses --- magnetic annealing --- synchrotron radiation --- crystallization kinetics --- Ge(001)-2