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Due to its high operating voltage the so-called high voltage spinel (LiNi0,5Mn1,5O4) is a promising cathode material. In this work the kinetics of the capacity loss during cycling and its change due to different coatings are analyzed. In a second part the electrochemical behavior for the insertion of a second lithium per formula unit is discussed for different doped spinel materials.
Degradation --- Hochvoltspinell --- Tiefentladunglithium ion battery --- Lithiumionenbatterie --- degradation --- high voltage spinel --- deep discharge
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Shielding (Electricity) --- Spinel group. --- Spinelite --- Spinell --- Spinellids --- Spinels --- Oxide minerals --- Electromagnetic screens --- Electromagnetic shields --- Electric apparatus and appliances --- Electronics --- Radar --- Radio --- Television --- Protection --- Interference
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The Special Issue on Recent Advances in Nanomagnetism is a compilation of articles, addressing various aspects of magnetic properties and behaviour in low dimensional magnetic materials. One contribution addresses the novel magnetic properties in a nanohybrid of iron oxide and carbide nanoparticles grown in diamond. Magnetic textures, such as skyrmion structures, form an important area of research in nanomagnetism, this forms the topic of another contribution. Several aspects of magnetisation dynamics are addressed in other contributions and relate to the developments of microresonators and microantennas applied to the study of magnetic nanostructures; the ferromagnetic resonance behaviour in nanodot systems are also considered. Materials development forms an important area of study in nanomagnetism, and, as such, the preparation conditions, such as annealing under an applied field, can have important effects on the magnetic properties of thin films and low dimensional structures. Such considerations form the study of one of the contributions. Perpendicular magnetic anisotropy has a number of important applications in magnetic storage materials; this is the subject of two further contributions.
Information technology industries --- Computer science --- magnetic nanohybrid materials --- nanodiamonds --- nanoparticles --- iron carbides --- Fe3C --- spinel-type iron oxide --- Mössbauer spectroscopy --- skyrmions --- micromagnetic simulations --- geometric pinning --- finite-element modelling --- ferromagnetic resonance --- microantenna --- microresonator --- magnetic relaxation --- thin films --- nanostructures --- [Co/Ni]2/PtMn multilayers --- magnetic field annealing --- hysteresis loop vertical shift --- exchange coupling --- nanomagnetism --- magnetic multilayers --- micromagnetism --- magnetization dynamics --- magnetic nanodots --- coupled magnetic thin films --- perpendicular magnetic anisotropy --- n/a --- Mössbauer spectroscopy
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The development of civilization entails a growing demand for consumer goods. A side effect of the production and use of these materials is the production of solid waste and wastewater. Municipal and industrial wastewater usually contains a large amount of various organic compounds and is the main source of pollution of the aquatic environment. Therefore, the search for effective methods of wastewater and other polluted water treatment is an important element of caring for the natural environment. This book presents research on the determination and removal of environmentally hazardous organic compounds from aqueous samples. The articles included in this book describe the results of examinations, at the laboratory scale, of the efficiency of chemical as well as physical processes for the removal or degradation of selected model pollutants. Environmental studies, especially those concerning the determination of trace impurities, require effective isolation and concentration procedures. The methods used for this purpose should meet the requirements of green chemistry. The liquid phase microextraction procedures and use of electrochemical methods described in this book seem to be proper for environmental studies, as they are effective and environmentally friendly.
photodegradation --- emerging organic contaminants --- salicylic acid --- biosorption --- doxazosin maleate --- boron-doped diamond electrode --- sulfasalazine --- continuous liquid–liquid extraction --- water environment --- electrochemical degradation --- chlorinated intermediates --- isotherm adsorption models --- water --- pollutants --- sediment --- ultrasound-assisted emulsification microextraction --- emerging contaminants --- electrochemical oxidation --- selective sorbent --- water remediation --- HPLC-UV --- sulfate radical --- boron doped diamond --- nickel aluminate --- advanced oxidation processes --- chemical oxygen demand --- hormones --- liquid-liquid continuous extraction --- organic pollutant --- run-off water --- DFT study --- biocides --- DLLME-SFO --- precious metals --- budesonide --- solidification of floating organic droplet --- flame retardants --- wastewater purification --- graphene quantum dots --- PBDE --- disinfection by-products --- 1-undecanol --- photocatalysis --- total petroleum hydrocarbon --- gas chromatography-mass spectrometry --- EOCs determination --- environmental samples --- groundwater --- fractional distillation --- spinel --- hydroxyl radical --- removal of organic compounds --- Guarani aquifer --- density functional theory --- persistent organic pollutants --- hydroxyl radicals
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The book (Special Issue) presents impressive new results related to a wide spectrum of occurrences of platinum-group minerals (PGM) and natural compounds enriched in platinum-group elements (PGE), which are associated with various complexes and deposits, such as Uralian-Alaskan-type complexes, layered intrusions and placers. The geographical locations of the involved deposits and complexes include, on a truly international scale, different areas of the Urals, Western and Eastern Sayans and Gornaya Shoria in Siberia, Southern Central Asian Orogenic Belt in China, Northern Michigan, USA, South Africa and Zimbabwe, etc. Of particular interest is the first description of a new species of PGM, thalhammerite (approved by the Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association), which is a new species of palladium-silver sulfobismuthide discovered in the Noril’sk region of Russia. Additionally, comprehensive reviews, on compositional variations in Pt–Fe alloy minerals and processes of transformations of PGM in exogenic environments, are presented which will also attract attention from international readers.
n/a --- placers --- platinum group minerals --- ophiolite --- platinum --- Pd9Ag2Bi2S4 phase --- Ural Platinum belt --- PGE mineralization --- Svetloborsky massif --- palladium --- platinum group elements --- chromian spinel --- gabbro --- platinum-group elements --- platiniferous tetra-auricupride --- primary inclusions --- Bolshoy Khailyk placer --- Noril’sk region --- Urals --- Central Asian Orogenic Belt --- PGE alloys --- western Sayans --- ultramafic-mafic complexes --- primary ores --- schemes of substitution --- Sisim placer zone --- PGM --- Pt-for-Au substitution --- South Africa --- Alaskan-type complex. --- element substitutions --- Eastern Sayans --- Ural-Alaskan massif --- reflectance data --- Gornaya Shoria --- Lysanskiy complex --- Bushveld Complex --- thalhammerite --- Komsomolsky mine --- Russia --- gold --- Siberia --- placer system --- Talnakh deposit --- Alaskan-type complex --- ore mineralization --- magnetite --- Pt–Fe alloys --- Great Dyke --- platinum-group mineral --- X-ray-diffraction data --- micrometric inclusions --- compositional variations --- platinum-group minerals --- placer deposits --- Midcontinent --- allogenic --- chromitite --- Ti- and REE-rich inclusions --- Echo Lake --- oxide ores --- crystal structure --- Zimbabwe --- ophiolite complexes --- authigenic --- Noril'sk region --- Pt-Fe alloys
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Various scientific events are being held around the world under the auspices of this landmark event, the Year of Mineralogy, and it is highly satisfying that this Special Issue “Mineralogical Crystallography Volume II” is published in 2022. The first volume of the “Mineralogical Crystallography” Special Issue [1] consisted of such topics as: Discovery of new mineral species; Crystal chemistry of minerals and their synthetic analogs; Behavior of minerals at non-ambient conditions; Biomineralogy; and Crystal growth techniques, and appeared to be very fruitful. The Special Issue “Mineralogical Crystallography Volume II” covers the following topics: Crystal chemistry and properties of minerals and their synthetic analogs; Gemology; Natural-based cement materials; Biomineralogy; and Crystal growth techniques. Additionally, we hope that this continuation will be just as successful, and that the new set of papers will again arouse genuine interest among readers and, perhaps, inspire them in their own successful research. We also believe that with the current collection of papers, we will be able to pay tribute to the union of Mineralogy and Crystallography.
Research & information: general --- uranyl --- carbonate --- mineral --- crystal structure --- topology --- structural complexity --- bentonite --- mordenite --- smectite --- pozzolanicity test --- cement --- concrete --- shchurovskyite --- synthesis --- X-ray diffraction --- oxocentered tetrahedra --- Barite --- hydrothermal synthesis --- typomorphic characteristics --- in-situ mixing solutions at high temperature --- high iron and quartz contents coal gangue --- acid leaching --- alkali melting --- hydrothermal reaction --- NaA zeolite --- fluorite --- pozzolan --- mortar --- mechanical strength --- reduction of CO2 emissions --- hydroxyapatite composite --- spinel --- beverage cans --- bovine bones --- lorenzenite --- perovskite --- loparite --- titanite --- apatite --- carbonates --- Khibiny --- Lovozero --- Kovdor --- Afrikanda --- alkaline intrusions --- NF Fennoscandia --- glass-ceramics --- phase separation --- nucleation --- crystallization --- microstructure --- gahnite --- gold nanoparticles --- surface plasmon resonance --- plasmonics --- ivanyukite --- lintisite --- SIV --- AM-4 --- sorption --- lead --- ion-exchange --- titanosilicate --- Arctic --- channel-water --- X-ray fluorescence --- infrared spectroscopy --- UV–vis spectroscopy --- transition metal ions --- self-healing concrete --- calcium nitrate --- mineralization reaction --- cracks --- near-infrared spectroscopy --- kaolinite --- dickite --- OH group --- forsterite --- boron --- spectroscopy --- orthoclase crystal --- ultra-microchannel --- water --- feldspar alteration --- sericitization --- gemological --- mineralogical --- greenish blue apatite --- fluorapatite --- n/a --- UV-vis spectroscopy
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