Results 101 to 110 of about 13,415,375 (294)

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon   +6 more
wiley   +1 more source

Biomonitoring Exposure to Platinum, Palladium and Rhodium in Young University Students from Leicester, England

open access: yesProceedings
We assessed the dietary exposure to platinum group elements [PGEs; platinum (Pt), palladium (Pd) and rhodium (Rh)] in young adults (18–23 yrs old) at De Montfort University (DMU, England).
Antonio Peña-Fernández   +4 more
doaj   +1 more source

Reservoir‐Driven Neuromorphic Computing Based on Composite Rare‐Earth/Transition Metal Oxide Memristor

open access: yesAdvanced Functional Materials, EarlyView.
A defect‐engineered Ag/Gd2O3:Nb2O5/Pt rare earth composite oxide memristor enables stable multilevel reservoir states through pulse driven conductance modulation. Experimentally measured device responses are incorporated into a device aware reservoir computing framework for CIFAR‐100 image classification, highlighting the potential of rare earth ...
Hammad Ghazanfar   +9 more
wiley   +1 more source

Chromite and platinum group elements mineralization in the Santa Elena Ultramafic Nappe (Costa Rica): geodynamic implications

open access: yesGeologica Acta, 2011
Chromitites associated with strongly altered peridotite from six distinct localities in the Santa Elena ultramafic nappe (Costa Rica) have been investigated for the first time.
F. ZACCARINI   +6 more
doaj  

A Review of Research Progress in Fire Assay Preconcentration and Determination Techniques for Trace Precious Metals in Geological Samples

open access: yesYankuang ceshi
Precious metals, including gold (Au) and platinum-group elements (PGEs), are characterized by extremely low abundances, heterogeneous distribution and susceptibility to the “nugget effect” in natural geological matrices, making their accurate ...
Kun SHAO, Gaihong ZHAO, Chaohui ZHAO
doaj   +1 more source

Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport

open access: yesAdvanced Functional Materials, EarlyView.
Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar   +1 more
wiley   +1 more source

Low-sulfide PGE mineralization type in the Dukaly mafic-ultramafic massif (Khabarovsk territory): minerals associated with PGE and their petrogenetic significance

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов
Relevance. The unique genesis of low-sulfide platinum-group element mineralization in basalt-ultrabasic massifs, such as the Dukali massif, which combines magmatic and post-magmatic processes, and its significant economic potential for expanding the ...
B.B. Levochskii   +5 more
doaj   +1 more source

Electrically Induced Phase Transition and Synaptic Functionality in MoTe2/Graphene Memristors

open access: yesAdvanced Functional Materials, EarlyView.
An electrically induced reversible 2H ↔ 1T′ phase transition is demonstrated in a vertical Au/Ti/MoTe2/graphene memristor with a laterally contacted graphene electrode. Resistive switching proceeds through a compositionally invariant amorphous/2H ↔ amorphous/1T′ transformation, in which a self‐formed amorphous MoTe2 interfacial region is proposed to ...
Chien‐Hua Wang   +7 more
wiley   +1 more source

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