Results 61 to 70 of about 24,591 (277)

Three water sites in upper mantle olivine and the role of titanium in the water weakening mechanism

Infrared spectroscopy on synthetic olivines has established that there are at least four different mechanisms by which hydrogen is incorporated into the crystal structure.
Berry, A. J., Hermann, J., Walker, A. M., O'Neill, H. S.   +3 more
core   +1 more source

Cobalt‐Free Single‐Crystal Cathodes for Next‐Generation Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Cobalt‐free single‐crystal cathodes enhance lithium‐ion battery stability by mitigating fracture, degradation, and phase transitions. This review highlights Ni‐rich layered, Li‐Mn‐rich, spinel, and olivine frameworks, synthesis strategies enabling morphology and defect control, and structural tuning via doping and coatings, offering pathways toward ...
Srinivasan Alagar, Rakesh Saroha, Jun Kim, Hyung Do Kim, Jung Sang Cho, Sang Mun Jeong   +5 more
wiley   +1 more source

Sustainable Revival of Spent Lithium Iron Phosphate Cathodes in Li‐Ion Batteries: Recycling and Surface Engineering Approaches

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Schematic illustration of the lifecycle of LiFePO4 cathodes. Lithiation and delithiation reactions happen through its discharging and charging processes. Recycling pathways including hydrometallurgy, pyrometallurgy, and direct regeneration enable sustainable reuse of spent LFP materials. Surface modification approaches (carbon, polymer, and metal/metal
Yan He, Ruigang Wang
wiley   +1 more source

Олівін [Olivin]

, 2022
ОЛІВІ́Н – групова назва близьких силікатних мінералів острівної структури серії твердих розчинів ряду форстерит–фаяліт . Характерні ізоморфні домішки: Mn, Ni, Co, Ca, Cr. Назву запропонував 1789 нім. мінералог А. Вернер, який дослідив зразок мінералу оливково-зеленого кольору. Си... ⚠️ Цей запис містить лише бібліографічні метадані.
  +5 more sources

Signal to Noise Ratio and Spectral Sampling Constraints on Olivine Detection and Compositional Determination in the Intermediate Infrared Region: Applications in Planetary Sciences

Earth and Space Science
Spectral features of olivine across the intermediate infrared region (IMIR, 4–8 μm) shift systematically with iron‐magnesium content, enabling determination of olivine composition.
S. A. Pérez‐López, C. H. Kremer, J. F. Mustard   +2 more
doaj   +1 more source

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Late Pleistocene Volcanic Rocks From Tengchong Volcanic Field at SE Tibetan Plateau: Constraints on Petrogenesis and Mantle and Crustal Processes

Geological Journal, EarlyView.
Early zircon saturation and crystallisation occur in mafic (52–54 wt.% SiO2) lavas at Tengchong volcanic field. These early formed zircons with high δ18O (6.6‰–7.9‰) indicates mantle enrichment by subducted supracrustal materials. ABSTRACT Late Pleistocene (< 0.2 Ma) mafic and evolved volcanic rocks occur in northern Tengchong Volcanic Field, SE ...
Lizhu Wang, Haibo Zou
wiley   +1 more source

Igneous and sedimentary origins of Jezero crater units from X-ray crystal mapping on Mars

Communications Earth & Environment
Jezero crater is located in Mars’ largest olivine-rich region, which is variously interpreted as lava flows, intrusive plutons, clastic sediments, or pyroclastics.
Brendan J. Orenstein, David T. Flannery, Michael W. M. Jones, Eleanor L. Moreland, Kirsten L. Siebach, Michael M. Tice, Allan H. Treiman, Briony Horgan, Balz Kamber, Athanasios Klidaras, Luke Nothdurft, Yang Liu, Edward A. Cloutis, Abigail C. Allwood, Scott VanBommel   +14 more
doaj   +1 more source

CRYSTALLIZATION CONDITIONS OF OLIVINE IN DUNITES THE GULI MASSIF, SIBERIAN PLATFORM [PDF]

Минералогия
Crystallization conditions of olivine in dunites of the Guli massif (Siberian Platform) are established using petrological, geochemical, mineralogical and thermobarogeochemical methods.
V.A. Simonov, A.V. Kotlyarov, V.V. Sharygin, Yu.R. Vasiliev   +3 more
doaj   +1 more source

Understanding the Key Role and Evaluation Methods of Sodium Storage Behavior/Mechanisms for Hard Carbon Anode

Information &Functional Materials, EarlyView.
By integrating various characterization and electrochemical techniques, this review emphasizes the importance of elucidating these mechanisms. Analysis of the sodium storage behavior in specific carbon materials further underscores the vital significance of such mechanistic research.
Wenjie Huang, Qianxiong Wen, Chun Wu, Shulei Chou, Xingqiao Wu   +4 more
wiley   +1 more source