Search Results - "Evans, John S.O"

Overcoming chemical equilibrium limitations using a thermodynamically reversible chemical reactor by Metcalfe, Ian S., Ray, Brian, Dejoie, Catherine, Hu, Wenting, de Leeuwe, Christopher, Dueso, Cristina, García-García, Francisco R., Mak, Cheuk-Man, Papaioannou, Evangelos I., Thompson, Claire R., Evans, John S. O.

“…All real processes, be they chemical, mechanical or electrical, are thermodynamically irreversible and therefore suffer from thermodynamic losses. Here, we…”
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Colossal Positive and Negative Thermal Expansion in the Framework Material Ag₃[Co(CN)₆] by Goodwin, Andrew L, Calleja, Mark, Conterio, Michael J, Dove, Martin T, Evans, John S.O, Keen, David A, Peters, Lars, Tucker, Matthew G

“…We show that silver(I) hexacyanocobaltate(III), Ag₃[Co(CN)₆], exhibits positive and negative thermal expansion an order of magnitude greater than that seen in…”
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Structural phase transitions and negative thermal expansion in Sc2(MoO4)3 by Evans, John S.O, Mary, T.A

“…The thermal expansion and phase transitions of the framework material Sc2(MoO4)3 have been investigated from 4 to 300 K by powder neutron diffraction, and from…”
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Structure and magnetism across the Sr2−xBaxNiOsO6 phase diagram: Understanding magnetic superexchange between first and third row transition metal ions by Tran, Phuong M., Evans, John S.O., Woodward, Patrick M.

“…The crystal chemistry and magnetism of compositions in the Sr2−xBaxNiOsO6 phase diagram have been investigated to better understand the superexchange…”
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Oxide Ion and Proton Conductivity in a Family of Highly Oxygen-Deficient Perovskite Derivatives by Fuller, Chloe A, Blom, Douglas A, Vogt, Thomas, Evans, Ivana Radosavljevic, Evans, John S O

“…Functional oxides showing high ionic conductivity have many important technological applications. We report oxide ion and proton conductivity in a family of…”
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Structure and magnetism across the Sr2−Ba NiOsO6 phase diagram: Understanding magnetic superexchange between first and third row transition metal ions by Tran, Phuong M., Evans, John S.O., Woodward, Patrick M.

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Structure Analysis from Powder Diffraction Data: Rietveld Refinement in Excel by Evans, John S. O, Evans, Ivana Radosavljevic

“…Powder diffraction is one of the most widely used analytical techniques for characterizing solid state materials. It can be used for phase or polymorph…”
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Synthesis and Structure of Bismuth Copper Vanadate, BiCu2VO6 by Radosavljevic, Ivana, Evans, John S.O., Sleight, Arthur W.

“…The new compound BiCu2VO6was synthesized, and its structure was determined from single-crystal X-ray diffraction data collected at 150 and 298 K. This compound…”
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Oxide Ion and Proton Conductivity in Highly Oxygen-Deficient Cubic Perovskite SrSc0.3Zn0.2Ga0.5O2.4 by Fuller, Chloe A, Berrod, Quentin, Frick, Bernhard, Johnson, Mark R, Avdeev, Maxim, Evans, John S. O, Evans, Ivana Radosavljevic

“…A series of Zn-substituted compounds, Sr2Sc1–x Zn x GaO5–0.5x , based on the brownmillerite-type oxide ion conductor Sr2ScGaO5 have been synthesized, and a…”
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Averaging the intensity of many-layered structures for accurate stacking-fault analysis using Rietveld refinement by Coelho, Alan A., Evans, John S. O., Lewis, James W.

“…Many technologically important synthetic and natural materials display stacking faults which lead to complex peak broadenings, asymmetries and shifts in their…”
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Supercolossal Uniaxial Negative Thermal Expansion in Chloranilic Acid Pyrazine, CA-Pyz by Liu, Huiyu, Gutmann, Matthias J, Stokes, Harold T, Campbell, Branton J, Evans, Ivana Radosavljevic, Evans, John S. O

“…There has been significant recent interest in exploiting the large dimension changes that can occur in molecular materials as a function of temperature,…”
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Revisiting the thermal and chemical expansion and stability of La0.6Sr0.4FeO3 by de Leeuwe, Christopher, Hu, Wenting, Neagu, Dragos, Papaioannou, Evangelos I., Pramana, Stevin, Ray, Brian, Evans, John S.O., Metcalfe, Ian S.

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Phase behaviour, thermal expansion and compressibility of SnMo2O8 by Araujo, Luiza R., Gallington, Leighanne C., Wilkinson, Angus P., Evans, John S.O.

“…The phase behaviour and thermoelastic properties of SnMo2O8, derived from variable temperature and pressure synchrotron powder diffraction data, are reported…”
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Revisiting the thermal and chemical expansion and stability of La0.6Sr0.4FeO3−δ by de Leeuwe, Christopher, Hu, Wenting, Neagu, Dragos, Papaioannou, Evangelos I., Pramana, Stevin, Ray, Brian, Evans, John S.O., Metcalfe, Ian S.

“…The thermal and chemical expansivity of La1-xSrxFeO3-δ (x ​= ​0.4) was measured using in situ powder neutron and synchrotron X-ray diffraction at temperatures…”
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Extensive Polymorphism in the Molecular Ferroelectric 18-Crown‑6 Oxonium Tetrachloro-Gallium(III) by Thompson, Sam Y., Devenney, Lauren A., Yufit, Dmitry S., Evans, John S.O.

“…The materials property of ferroelectricity is intimately linked with symmetry-changing phase transitions. Characterizing such transitions is therefore…”
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Synthesis and structure of bismuth copper arsenate, BiCu2AsO6 by Radosavljevic, Ivana, Evans, John S.O, Sleight, Arthur W

“…A new compound with the formula BiCu2AsO6 has been prepared. This dark green compound crystallizes in space group Pnma with a=12.253(1) Å, b=5.280(1) Å,…”
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Parametric Rietveld refinement by Stinton, Graham W., Evans, John S. O.

“…In this paper the method of parametric Rietveld refinement is described, in which an ensemble of diffraction data collected as a function of time, temperature,…”
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Brownmillerite-Type Sr2ScGaO5 Oxide Ion Conductor: Local Structure, Phase Transition, and Dynamics by Fuller, Chloe A, Berrod, Quentin, Frick, Bernhard, Johnson, Mark R, Clark, Stewart J, Evans, John S. O, Evans, Ivana Radosavljevic

“…Brownmillerite-type Sr2ScGaO5 has been investigated by a range of experimental X-ray and neutron scattering techniques (diffraction, total scattering, and…”
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Average and Local Structure of Apatite-Type Germanates and Implications for Oxide Ion Conductivity by Chambers, Matthew S, Chater, Philip A, Evans, Ivana Radosavljevic, Evans, John S. O

“…Materials with the apatite structure have a range of important applications in which their function is influenced by details of their local structure. Here, we…”
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Time-resolved, in situ X-ray diffraction studies of the hydrothermal syntheses of microporous materials by O'Hare, Dermot, Evans, John S.O., Francis, Robin J., Shiv Halasyamani, P., Norby, Poul, Hanson, Jonathan

“…In this paper we describe the use of energy dispersive diffraction using ‘white’ synchrotron radiation and angular dispersive X-ray diffraction with a moving…”
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