The novelties in this paper are embodied in the fast interfacial charge transfer in α-Fe2O3-δCδ/FeVO4-x+δCx-δ@C bulk heterojunctions with controllable phase compositions. The carbon source-glucose plays an important role as the connecting bridge between the micelles in the solution, forming interfacial C-O, C-O-Fe and O-Fe-C bonds through dehydration and polymerization reactions. Then the extra...

We have investigated the magnetoelectric and magnetodielectric response in FeVO4, which exhibits a change in magnetic structure coincident with ferroelectric ordering at TN2≈15 K. Using symmetry considerations, we construct a model for the possible magnetoelectric coupling in this system and present a discussion of the allowed spin structures in FeVO4. Based on this model, in which the spontane...

This research reports a facile ultrasonic approach for the synthesis of iron vanadate (FeVO4) nanoparticles with the aid of ammonium metavanadate (NH4VO3) and Fe(NO3)3.9H2O as the starting reagents without adding external surfactant, capping agent or template in an aqueous solution. Furthermore, to examine the solar cell application of as-synthesized iron vanadate (FeVO4) nanoparticles, FTO/TiO...

this research reports a facile ultrasonic approach for the synthesis of iron vanadate (fevo4) nanoparticles with the aid of ammonium metavanadate (nh4vo3) and fe(no3)3.9h2o as the starting reagents without adding external surfactant, capping agent or template in an aqueous solution. furthermore, to examine the solar cell application of as-synthesized iron vanadate (fevo4) nanoparticles, fto/tio...

EFFECTS OF TRANSITION METAL DOPING ONMULTIFERROIC ORDERING INNi3V2O8 ANDFeVO4byAKILA KUMARASIRIDecember 2012Advisor : Dr. Gavin LawesMajor : PhysicsDegree : Doctor of PhilosophyWe have studied the effects of doping both non-magnetic and magnetic ions on the phasetransitions and multiferroic ordering in two multiferroic oxides; Ni3V2O8 and FeVO4. M...

Construction of a step-scheme (S-scheme) heterojunction photocatalyst is currently under investigation as it known to facilitate decrease in the e–/h+ recombination rate and preserves strong redox ability. This research work has reported on use microwave irradiation combined with wet impregnation synthesis FeVO4/Bi4O5Br2 heterojunctions at different weight percentages (%wt) FeVO4 (0.5%, 1%, 3% ...

In this work, we report first-principles calculations to study FeVO4 in the CrVO4-type (phase II) structure under pressure. Total-energy were performed order analyze structural parameters, electronic, elastic, mechanical, and vibrational properties of FeVO4-II up 9.6 GPa for first time. We found a good agreement parameters with experimental results available literature. The electronic analysis ...

A redox-reversible iron orthovanadate cathode is demonstrated for a solid oxide electrolyser with up to 100% current efficiency for steam electrolysis. The iron catalyst is grown on spinel-type electronic conductor FeV2O4 by in situ tailoring the reversible phase change of FeVO4 to Fe+FeV2O4 in a reducing atmosphere. Promising electrode performances have been obtained for a solid oxide steam el...

We present a first-principles-based formalism to provide a quantitative measure of the thermodynamic instability and propensity for electrochemical stabilization, passivation, or corrosion of metastable materials in aqueous media. We demonstrate that this formalism can assess the relative Gibbs free energy of candidate materials in aqueous media as well as their decomposition products, combinin...