Results 71 to 80 of about 15,700 (190)

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

open access: yesENERGY &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   +5 more
wiley   +1 more source

Plasticity and strength of an equiatomic and a non-equiatomic HfNbTaTiZr high entropy alloy during uniaxial loading : a molecular dynamics simulation study

open access: yesMaterials Research Express
Understanding plasticity and strength of high entropy alloys of HfNbTaTiZr is extremely significant in building nuclear reactors, gas turbines, aerospace devices etc.
Puja Bordoloi   +3 more
doaj   +1 more source

Geological controls on enrichment of Mn, Nb (Ta), Zr (Hf), and REY within the Early Permian coals of the Jimunai Depression, Xinjiang Province, NW China

open access: yesInternational Journal of Coal Geology, 2019
Previous investigations on major and trace elements within the Early Permian coals from Xinjiang Province are very scarce. This paper reports on the geochemistry of the Early Permian coals and associated non-coal rocks in the Jimunai depression, Xinjiang
Bao-qing Li   +9 more
semanticscholar   +1 more source

Entropy‐Driven Innovations: Entropy Stabilized Oxides for High‐Performance Next‐Generation Lithium–Sulfur Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This article explores high‐entropy‐stabilized oxides (HEOs) as novel functional materials for addressing critical issues in lithium–sulfur (Li–S) batteries, including lithium polysulfide (LPS) shuttling, inadequate conductivity, and slow redox kinetics.
Hassan Raza   +10 more
wiley   +1 more source

Low‐Dimensional Materials and Van Der Waals Heterostructures for Energy Application: A Comprehensive Review

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Low‐dimensional materials (0D, 1D, and 2D) exhibit unique electronic and physicochemical properties, enabling advanced nanoelectronic and optoelectronic devices. Mixed‐dimensional heterostructures combine these materials to enhance functionality.
Qaisar Alam   +3 more
wiley   +1 more source

Electronic Structure Modulation in Dopant‐Controlled Single‐Atom Graphene Catalysts for Efficient Hydrogen Evolution: A Machine Learning and First‐Principles Study

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
First‐principles DFT calculations and machine learning analysis show that heteroatom doping of graphene (G) significantly enhances the stabilization of transition‐metal single atoms by strengthening metal–support interactions and increasing charge transfer. N‐doped G exhibits higher adsorption energies, lower d‐band centers, and shorter TM–G bonds than
Sajjad Ali   +3 more
wiley   +1 more source

Phase Engineering Enabled Excellent Power Factor and Reduced Thermal Conductivity in ZrCoSb‐Based Half‐Heusler Compounds

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
In situ precipitation of Zr6Co16Si7 in ZrCoSb‐based half‐Heusler enables Fermi level optimization and enhanced phonon scattering. Electrical conductivity is significantly improved while the power factor continuously increases, reaching ~3.36 mW m−1 K−2.
Shuyue Tan   +9 more
wiley   +1 more source

Research progress on flexible MXene‐based materials in advanced energy storage devices: From preparation strategies to device applications

open access: yesFlexMat, EarlyView.
This review summarizes MXene synthesis and flexible electrode fabrication for FESDs, highlighting their potential owing to high conductivity and flexibility, and outlines future research directions. Abstract The rapid development of wearable and portable electronics has created demand for flexible energy storage systems (FESDs) that not only exhibit ...
Nanxi Miao   +10 more
wiley   +1 more source

Enrichment characteristics and genesis mechanism of critical elements (Nb-Ta-Zr-Hf-REE-Y) in coals: a case study of Late Permian coalfield in Northeastern Guizhou, China

open access: yesFrontiers in Earth Science
The discovery of coal-type beneficial metal deposits and corresponding genesis mechanisms are cutting-edge issues in current sedimentary environment research. Based on industrial analysis, mineralogy, and geochemical measurement of seven typical mines in
Ziyi Ye, Baoqing Li, Jialiang Cao
doaj   +1 more source

Anion Exchange Behaviour of Zr, Hf, Nb, Ta and Pa as Homologues of Rf and Db in Fluoride Medium

open access: yesJournal of the Mexican Chemical Society, 2019
Studies of the chemical property of transactinide elements are very difficult due to their short half-lives and extremely small production yields. However it is still possible to obtain considerable information about their chemical properties, such as ...
F. Monroy-Guzmán   +5 more
semanticscholar   +1 more source

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