scholarly journals Crystal structure and magnetic properties of the 5d transition metal oxides AOsO4(A=K,Rb,Cs)

2019 ◽  
Vol 99 (15) ◽  
Author(s):  
Jun-ichi Yamaura ◽  
Zenji Hiroi
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides

scholarly journals Screening and characterization of ternary oxides for high temperature carbon capture

2018 ◽  
Author(s):  
Michael Gaultois ◽  
Matthew T Dunstan ◽  
Adam W Bateson ◽  
Martin Chan ◽  
Clare P Grey
Keyword(s):  
Crystal Structure ◽  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Carbon Capture ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Absorption Capacity ◽  
Ternary Metal

<div>This work describes the experimental characterisation and CO<sub>2</sub> sorption properties of several new ternary transition metal oxides predicted by high-throughput DFT screening. One material reported here, Li<sub>5</sub>SbO<sub>5</sub>, displays reversible CO<sub>2</sub> sorption, and maintains ~72% of its theoretical capacity out to 25 cycles. <br></div><div>The results in this work are used to discuss major influences on CO<sub>2</sub> absorption capacity and rate, including the role of the crystal structure, the transition metal, the alkali or alkaline earth metal, and the competing roles of thermodynamics and kinetics. </div><div>Notably, this work shows the extent and rate to which ternary metal oxides carbonate is driven primarily by the identity of the alkali or alkaline earth ion and the nature of the crystal structure, whereas the identity of the transition ion carries little influence in the systems studied here.</div>

Synchrotron Moessbauer Spectroscopy and Resistivity Studies of Iron Oxide Under High Pressure

2006 ◽  
Vol 987 ◽  
Author(s):  
Viktor V. Struzhkin ◽  
Mikhail I. Eremets ◽  
Ivan M. Eremets ◽  
Jung-Fu Lin ◽  
Wolfgang Sturhahn ◽  
...  
Keyword(s):  
High Pressure ◽  
Magnetic Properties ◽  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
High Pressures ◽  
Structural Phase ◽  
Experimental Studies ◽  
Magnetic Interactions ◽  
Diamond Anvil

AbstractThe strong electron correlations play a crucial role in the formation of a variety of electronic and magnetic properties of the transition metal oxides. In strongly correlated electronic materials many theoretical predictions exist on pressure-induced insulator-metal transitions, which are followed by a collapse of localized magnetic moments and by structural phase transitions [1]. The high-pressure studies provide additional degree of freedom to control the structural, electronic, optical, and magnetic properties of transition metal oxides. With the development of the high-pressure diamond-anvil-cell technique the experimental studies of such transitions are now possible with the advanced synchrotron techniques. In our studies, the iron monooxide Fe0.94O was studied under high pressures up to 200 GPa in diamond anvil cells. The single crystals enriched with Fe57 isotopes have been prepared for nuclear resonance measurements. The results of synchrotron Mössbauer spectroscopy (nuclear forward scattering -NFS), and electro-resistivity measurements suggest a complicated scenario of magnetic interactions governed by band-broadening effects.

ChemInform Abstract: Magnetic Properties of Transition-Metal Oxides: from Bulk to Nano

ChemInform ◽  
2011 ◽  
Vol 42 (42) ◽  
pp. no-no
Author(s):  
Polona Umek ◽  
Andrej Zorko ◽  
Denis Arcon
Keyword(s):  
Magnetic Properties ◽  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides

scholarly journals Screening and characterization of ternary oxides for high temperature carbon capture

2018 ◽  
Author(s):  
Michael Gaultois ◽  
Matthew T Dunstan ◽  
Adam W Bateson ◽  
Martin Chan ◽  
Clare P Grey
Keyword(s):  
Crystal Structure ◽  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Carbon Capture ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Absorption Capacity ◽  
Ternary Metal

<div>This work describes the experimental characterisation and CO<sub>2</sub> sorption properties of several new ternary transition metal oxides predicted by high-throughput DFT screening. One material reported here, Li<sub>5</sub>SbO<sub>5</sub>, displays reversible CO<sub>2</sub> sorption, and maintains ~72% of its theoretical capacity out to 25 cycles. <br></div><div>The results in this work are used to discuss major influences on CO<sub>2</sub> absorption capacity and rate, including the role of the crystal structure, the transition metal, the alkali or alkaline earth metal, and the competing roles of thermodynamics and kinetics. </div><div>Notably, this work shows the extent and rate to which ternary metal oxides carbonate is driven primarily by the identity of the alkali or alkaline earth ion and the nature of the crystal structure, whereas the identity of the transition ion carries little influence in the systems studied here.</div>

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