Journal ArticleDOI
Amorphous vanadium pentoxide
TLDR
In this article, the structure and semiconducting properties of amorphous vanadium pentoxide obtained by splat cooling have been studied and it has been shown that the electronic mobility is lower in the vanadium state than in the orthorhombic V 2 O 5.Abstract:
Structure and semiconducting properties of amorphous vanadium pentoxide obtained by splat cooling have been studied. Long-range order appears suddenly when the oxide is heated to about 200°C. The short-range order of the glass seems to be almost identical to that encountered in orthorhombic V 2 O 5 . ESR spectra are typical of localized electrons, they show that the electronic mobility is lower in the amorphous state. The hopping frequency of the unpaired 3d electron from a V 4+ to a V 5+ ion increases when long-range order is established. This phenomenon is related to the electrical resistivity which is about one order of magnitude higher in the glass.read more
Citations
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Infrared and Raman study of amorphous V2O5
C. Sanchez,J. Livage,G. Lucazeau +2 more
TL;DR: Amorphous V2O5 can be obtained by cooling from the melt and is very sensitive to water vapour and can even be dissolved in water to give a vanadium pentoxide gel as mentioned in this paper.
Journal ArticleDOI
Comprehensive understanding of the roles of water molecules in aqueous Zn-ion batteries: from electrolytes to electrode materials
TL;DR: In this article, the role of water molecules in rechargeable aqueous Zn-ion batteries (AZIBs) has been discussed from the perspective of the electrolyte, Zn anode, and cathode materials.
Journal ArticleDOI
Synthesis and electrochemical properties of vanadium oxide materials and structures as Li-ion battery positive electrodes
TL;DR: In this article, the synthesis and structural properties of vanadium oxides, one of the model layered battery materials, and their electrochemical characteristics under a wide range of conditions are assessed and compared as positive electrode materials in lithium and lithium-ion batteries up to the present day.
Journal ArticleDOI
Bilayered Nanostructured V2O5·nH2O for Metal Batteries
Journal ArticleDOI
Evolution of bioceramics within the field of biomaterials
TL;DR: A review article dedicated to Prof. Jacques Livage as discussed by the authors is focused on current trends in bioceramics and its application in tissue engineering, which is basically to provide an adequate scaffolding system which helps the bone cells to perform their natural processes.
References
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Journal ArticleDOI
Absence of Diffusion in Certain Random Lattices
TL;DR: In this article, a simple model for spin diffusion or conduction in the "impurity band" is presented, which involves transport in a lattice which is in some sense random, and in them diffusion is expected to take place via quantum jumps between localized sites.
Journal ArticleDOI
Polarons in crystalline and non-crystalline materials
I. G. Austin,Nevill Mott +1 more
TL;DR: The current state of polaron theory as applicable to transition metal oxides is reviewed in this article, including problems such as impurity conduction where disorder plays a role, and an estimate is given of the conditions under which polaron formation leads to an enhancement of the mass but no hopping energy.
Journal ArticleDOI
Continuous series of metastable solid solutions in silver-copper alloys
TL;DR: Olsen and Hultgren as mentioned in this paper devised a technique by which small amounts of liquid alloys can be cooled at rates high enough to prevent the normal process of nucleation and growth of equilibrium phases.
Journal ArticleDOI
The crystal structure of vanadium pentoxide.
Journal ArticleDOI
Electronic conduction in vanadium phosphate glasses
TL;DR: In this article, the dc and ac conductivities and thermoelectric power have been measured as a function of the ratio (V 4+ /V total ) in glasses in the system V 2 O 5 -P 2 O5.