Results 91 to 100 of about 29,221 (288)

Ferritas Ni-Zn: breve revisão sobre o processo convencional de fabricação e as propriedades permeabilidade magnética e constante dielétrica Ni-Zn ferrites: brief review on the conventional method of fabrication and the magnetic permeability and dielectric constant properties

Cerâmica, 2006
As ferritas Ni-Zn são cerâmicas magnéticas que têm sido amplamente aplicadas na fabricação de componentes elétricos e eletrônicos. Esses materiais têm sido estudados há décadas por diversos autores, os quais têm definido a relação entre as propriedades ...
V. L. O. Brito
doaj   +1 more source

Emerging Materials and Future Strategies for Solid Oxide Electrochemical Cells

Advanced Energy Materials, EarlyView.
Solid oxide electrochemical cells operate under strongly coupled electrochemical and thermodynamic conditions, where performance is constrained by interactions among crystal structure, defect chemistry, and interfacial evolution. This review, based on a structure‐defect‐property‐durability framework, reveals the roles of lattice symmetry and defect ...
Qiuchun Lu, Yufei Zhang, Han Zhao, Pooi See Lee, Daniel H.C. Chua   +4 more
wiley   +1 more source

Preparation and microwave absorbing properties in the X-band of natural ferrites from iron sands by high energy milling

Materials Research Express, 2018
Bulk natural ferrites based in iron sands were synthesized at room temperature by high energy ball milling. The reduced particle sizes of the ferrites were milled at 100 rpm at selected time intervals of 0, 2, 4, and 6 h. The as-milled products were then
X Mashuri, W Lestari, X Triwikantoro, X Darminto   +3 more
doaj   +1 more source

Enhanced Lattice Polarization and Directed Charge Transport Toward Pt Surface Sites Accelerate the Volmer Step in Piezocatalytic H2 Evolution on Co‐Doped BiFeO3

Advanced Energy Materials, EarlyView.
We report a Pt‐decorated Co‐doped BiFeO3 (Pt/BCFO) piezocatalyst achieving an H2 evolution rate of 1896.4 µmol g−1 h−1. Co‐doping induces lattice distortion, enhancing piezoelectric polarization, while Pt sites promote water dissociation. Embedded in a poly(vinylidene fluoride) matrix, Pt/BCFO enables efficient mechanical energy harvesting and catalyst
Dian Zhang, Xiaowen Ruan, Lin Wang, Bin Cheng, Minghua Xu, Chunsheng Ding, Hongwei Huang, Sai Kishore Ravi   +7 more
wiley   +1 more source

Study of magnetic properties of NiZnCu ferrite synthesized by Pechini method and solid-state reactions

AIP Advances, 2018
Ni-Zn-Cu ferrites are exhibiting excellent magnetic properties at large frequencies and are consequently produced as low-loss magnetic materials used for magnetic components in power electronics.
Gaëlla Frajer, Mathieu Salaün, Gérard Delette, Hervé Chazal, Olivier Isnard   +4 more
doaj   +1 more source

Electromagnetic Simulation and Design of a Novel Waveguide RF Wien Filter for Electric Dipole Moment Measurements of Protons and Deuterons

, 2016
The conventional Wien filter is a device with orthogonal static magnetic and electric fields, often used for velocity separation of charged particles. Here we describe the electromagnetic design calculations for a novel waveguide RF Wien filter that will
Gebel, R., Heberling, D., Hinder, F., Hölscher, D., Lehrach, A., Lorentz, B., Mey, S., Nass, A., Rathmann, F., Reifferscheidt, L., Slim, J., Soltner, H., Straatmann, H., Trinkel, F., Wolters, J.   +14 more
core   +1 more source

Data‐Guided Photocatalysis: Supervised Machine Learning in Water Splitting and CO2 Conversion

Advanced Intelligent Discovery, EarlyView.
This review highlights recent advances in supervised machine learning (ML) for photocatalysis, emphasizing methods to optimize photocatalyst properties and design materials for solar‐driven water splitting and CO2 reduction. Key applications, challenges, and future directions are discussed, offering a practical framework for integrating ML into the ...
Paul Rossener Regonia, Christian Mark Pelicano   +1 more
wiley   +1 more source

k‐Selective Electrical‐to‐Magnon Transduction with Finite‐Element‐Resolved Sub‐Micron Nanoantennas

Advanced Physics Research, EarlyView.
We introduce a coupled finite‐element‐finite‐difference framework that links impedance‐matched nanoantenna geometries to propagating spin‐wave dynamics, capturing skin effects, proximity effects, and taper leakage beyond uniform‐current models. Applied to coplanar‐waveguide and stripline nanoantennas on yttrium‐iron‐garnet, the simulations achieve ...
Andreas Höfinger, Andrey A. Voronov, David Schmoll, Sabri Koraltan, Florian Bruckner, Claas Abert, Dieter Suess, Morris Lindner, Timmy Reimann, Carsten Dubs, Andrii V. Chumak, Sebastian Knauer   +11 more
wiley   +1 more source

NiFe‐NO3 Layered Double Hydroxide as a Novel Anode for Sodium Ion Batteries

Batteries &Supercaps, Volume 8, Issue 3, March 2025.
This study demonstrates, for the first time, the effectiveness of using LDH as an anodic material in SIB. The material is stable and show high specific capacity, the reaction mechanism has been thoroughly investigated and comprehensively described and involves a phase change reaction followed by sodium intercalation.
Marco Fortunato, Angelina Sarapulova, Björn Schwarz, Anna Maria Cardinale, Sonia Dsoke   +4 more
wiley   +1 more source

Advancing Upcycling and Regeneration of Spent LiFePO4: Failure Mechanisms and Recovery Strategies

Carbon Energy, EarlyView.
This review studies the failure mechanism to promote the upcycling regeneration of spent lithium iron phosphate (S‐LFP). It first summarizes the failure mechanisms of LFP batteries revealed via advanced characterization technologies and then explores the respective advantages and challenges of hydrometallurgy and direct regeneration methods.
Yi Wang, Xue Liu, Wen Luo, Rui Xu, Ze Wang, Jean‐Jacques Gaumet, Liqiang Mai   +6 more
wiley   +1 more source