Results 121 to 130 of about 380,880 (314)
Catalytic Activity of Cobalt Ferrites in Water Oxidation Reactions and Its Defect Dependency
ChemCatChem, EarlyView.Cobalt ferrite spinels calcined at 400–600 °C show temperature‐dependent changes in crystallinity, particle size, and defect concentration. A combination of PXRD, BET, SEM, Mössbauer spectroscopy, magnetometry, and PALS reveals how defect landscapes govern opposing trends in chemical versus electrochemical water oxidation.
Anna Rabe +12 more
wiley +1 more source
Performance evaluation of synchronous reluctance motors with and without permanent magnets [PDF]
, 2016 Nowadays, a growing interest in the efficiency and the cost of electrical machines has been noticed. Therefore, Synchronous Reluctance Motors (SynRMs) have become more attractive, thanks to their higher efficiency and nevertheless acceptable cost ...
Ibrahim, Mohamed Nabil Fathy +2 more
core +1 more source
Cooperative Effect of Co and Fe Promotes the OER Activity of CoFe2O4(100) and (001) surfaces
ChemCatChem, EarlyView.A comprehensive first‐principles study of the OER activity of the inverse spinel CoFe2O4${\rm CoFe}_2{\rm O}_4$ renders the lowest overpotential (0.20 V) for octahedral cobalt in the A‐layer of the (100) surface. This is ascribed to a bulk‐like oxidation state of surface cations and an unusual bonding configuration of *OOH with participation of ...
Shohreh Rafiezadeh +2 more
wiley +1 more source
Chemistry–Methods, EarlyView.Vapor phase metalation (VPM) enables Angstrom‐scale functionalization of (NH4)2V7O16 nanostructures using diethylzinc. This solvent‐free, gas‐phase method induces structural and magnetic transformations, aligning with circular economy goals. VPM enhances material properties for spintronics, neuromorphic computing, biomagnetism, and sustainable ...
Mabel. A. Moreno +4 more
wiley +1 more source
Impact of 157Gd containing nanoscale magnetosensitive composites on morfofunctional properties of cells in vitro [PDF]
Ядерна фізика та енергетика, 2014 Modifying effect of magnet driven nonocomposites containing 157Gd upon morpho-functional properties of cells was studied in the test system of L929 cell line culture.
H. I. Lavrenchuk +4 more
doaj
ChemNanoMat, EarlyView.This study reports the synthesis and compositional tuning of CoxFe3−xO4 nanoclusters (x = 0.6–1.4) via a controlled combustion route. Single‐domain particles exhibited systematically increasing coercivity and anisotropy with cobalt content. Peak saturation magnetization occurred at x = 1.2, while zero‐field cooling and field‐cooling and blocking ...
Prasun Banerjee, Adolfo Franco Júnior
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.The SCF composite film was successfully synthesized, which achieved the combined anti‐counterfeiting of fluorescence and magnetism. Self‐powered sensors based on SCF films have broad application prospects in fields such as health monitoring. Natural polymers possess the qualities of abundant resources, low cost, as well as excellent biocompatibility ...
Huijing Xiang +7 more
wiley +1 more source
Energy Science &Engineering, EarlyView.Ultrahigh voltage gain ratio, extendable capability, three designing freedom degrees, low current stress, continuous input current, low voltage stress, common ground, load. small‐scale renewable energy applications. ABSTRACT This paper introduces a new expandable non‐isolated quadratic step‐up DC/DC converter with low voltage and current stresses as ...
Sara Hasanpour, Tohid Nouri
wiley +1 more source
Energy Science &Engineering, EarlyView.1. Finite element analysis applied to structural optimization of concentric ring electromagnetic shielding structure. 2. DBN‐BP machine learning algorithm applied to the establishment of structural optimization programs. ABSTRACT The proliferation of high‐frequency wireless power transfer (WPT) technology in smart grid applications—particularly dynamic
Yuanhuang Liu +3 more
wiley +1 more source