Results 81 to 90 of about 2,177 (171)

Metamorphic or Igneous Zircon? Classification Through Rare Earth Elements, Machine Learning and Logistic Regression

open access: yesJournal of Metamorphic Geology, EarlyView.
ABSTRACT Zircon is a common, highly refractory accessory mineral found in sedimentary, igneous and metamorphic rocks that forms through various processes (e.g., magmatic, hydrothermal, metamorphic growth and recrystallization). Trace element compositions of detrital zircon have been widely applied to understanding tectonic processes and continental ...
Jarrod M. Burges   +5 more
wiley   +1 more source

Data‐ and Theory‐Guided Design of Dual‐Role V‐Doped RuO2 for High‐Performance Acidic Oxygen Evolution

open access: yesAngewandte Chemie, Volume 138, Issue 32, 3 August 2026.
A data‐ and theory‐guided paradigm, leveraging large‐scale data mining of 718 catalysts and microkinetic modeling, identifies V‐doped RuO2 as optimal for acidic OER. Vanadium doping drives electron withdrawal from Ru centers, generating Lewis acidic sites that polarize O–H bonds and accelerate deprotonation kinetics. Experimental validation achieves an
Zhongliang Liu   +10 more
wiley   +2 more sources

Mechanical properties of reactive sintered high-entropy boride/carbide composite

open access: yesOpen Ceramics
High-entropy equimolar (Ti-Zr-Nb-Ta-Hf)B2 - (Ti-Zr-Nb-Ta-Hf)C dual–phase boride/carbide composite was prepared via a two-step spark plasma sintering (SPS).
Ines Sara Moussaoui   +8 more
doaj   +1 more source

Reconnaissance study of watershed and cave sediment sources discharging from a karst spring, Iowa

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 3, September 2026.
Abstract Springs discharging from karst landscapes provide sustainable flows to natural ecosystems and support productive fish hatcheries but sediment discharging from springs threatens the long‐term sustainability of hatcheries. In this study, we conducted a reconnaissance study to evaluate watershed and cave sediment sources discharging to Siewers ...
Keith E. Schilling   +4 more
wiley   +1 more source

Recent Advances in Metal‐Organic Framework Photo‐Electrocatalysts for the Synthesis of Ammonia

open access: yesCarbon Neutralization, Volume 5, Issue 5, September 2026.
This diagram illustrates the role of Metal‐Organic Frameworks (MOFs) in the photocatalytic and electrocatalytic synthesis of ammonia, highlighting their potential as efficient catalysts for sustainable nitrogen fixation under light irradiation and electrode excitation.
Jingjing Wang   +9 more
wiley   +1 more source

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

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
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

Unveiling Entropy‐Driven Hard‐Tough Synergy Mechanisms in High‐Entropy Carbonitride Ceramics

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT High‐entropy ceramics manifested promise for extreme environments, yet their phase stability and mechanical synergy mechanisms remain elusive. Herein, entropy‐difference carbonitrides, including (TaTiV)CN, (TaTiVNb)CN, and (TaTiVNbHf)CN, were designed and consolidated via spark plasma sintering.
Long Zhao   +6 more
wiley   +1 more source

Origin of shear induced ‘catching bonds’ on half Heusler thermoelectric compounds XFeSb (X = Nb, Ta) and SnNiY (Y = Ti, Zr, Hf)

open access: yesnpj Computational Materials
Half Heusler materials exhibit excellent thermoelectric and mechanical properties, rendering them potential candidates for advanced thermoelectric devices.
Haoqin Ma   +9 more
doaj   +1 more source

Analysis of High-temperature Strength Effect of Mo-based Alloy Based on Bayesian Optimization

open access: yesYuanzineng kexue jishu
Core structural materials such as cladding in advanced nuclear reactors face harsh service environments such as high-temperature, and their comprehensive performance is one of the bottlenecks restricting the development of advanced reactors.
BAO Jiaming,  BAI Bing,  KE Yixuan,  GAO Jin,  HE Xinfu,  YANG Wen
doaj   +1 more source

Development of CCMb: A Low‐Mg Calcite Reference Material for In Situ Measurement of δ18O, δ13C and Selected Trace Elements

open access: yesGeostandards and Geoanalytical Research, Volume 50, Issue 3, Page 677-700, September 2026.
Key Points Low‐Mg calcite RM developed for in situ microanalysis applications in palaeoclimatology (δ18O, δ13C; Mg, Sr m/m). New data for calcite CRM IAEA‐603 (δ18O, δ13C by SIMS and GS‐IRMS; Mg m/m). No detectable IMF effect of Mg on SIMS δ18O determinations for mass fractions < 3650 μg g‐1.
Andreas T. Hertwig   +13 more
wiley   +1 more source

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