Results 31 to 40 of about 476 (168)
Micro-Raman Spectroscopy Investigation of Crystalline Phases in EAF Slag
Applied Sciences, 2020 Electric arc furnace (EAF) slags were investigated by micro-Raman spectroscopy. A slag sample characterised by well-developed crystalline phases was obtained.
Alessandro Riboldi +7 more
doaj +1 more source
Topotactic Phase Transformation in Epitaxial SrCo1‐xFexO3−δ Thin Films
Advanced Electronic Materials, 2020 Epitaxial perovskite (P) and brownmillerite (BM) SrCo0.67Fe0.33O3−δ thin films grown on (100) SrTiO3 substrates by pulsed laser deposition are investigated by detailed X‐ray diffraction, conductive AFM, and SQUID magnetometry measurements regarding their
Hien Thi Dieu Nguyen +2 more
doaj +1 more source
Origin of metal-insulator transitions in correlated perovskite metals
Physical Review Research, 2022 The mechanisms that drive metal-to-insulator transitions (MIT) in correlated solids are not fully understood, though intricate couplings of charge, spin, orbital, and lattice degrees of freedom have been implicated.
M. Chandler Bennett +6 more
doaj +1 more source
Ca2Cr0.5Ga1.5O5—An extremely redox-stable brownmillerite phase
Journal of Solid State Chemistry, 2015 Abstract Investigation of the Ca 2 Cr x Ga 2− x O 5 compositional series reveals a maximum chromium solubility of 25%. The most chromium rich composition, Ca 2 Cr 0.5 Ga 1.5 O 5 , adopts a brownmillerite-type anion deficient perovskite structure described in space group Pnma ( a =5.368 A, b =14.547 A, c =5.593 A).
Luo, K, Patino, M, Hayward, M
openaire +2 more sources
Hydrothermal Valorization of Steel Slags—Part I: Coupled H2 Production and CO2 Mineral Sequestration
Frontiers in Energy Research, 2017 A new process route for the valorization of BOF steel slags combining H2 production and CO2 mineral sequestration is investigated at 300°C (HT) under hydrothermal conditions.
Camille Crouzet +8 more
doaj +1 more source
Advanced Electronic Materials, 2023 A novel class of transition metal oxides, capable of reversible topotactic phase transition between the oxygen‐deficient brownmillerite and oxygen‐rich perovskite, has emerged as a promising material for memristive and magnetoelectric devices.
Venkata Raveendra Nallagatla +6 more
doaj +1 more source
Nature Communications, 2018 Complex oxide heterostructures exhibit multifunctional behaviour that could be used in a range of device applications. Here, the authors observe that reconstruction at oxide perovskite/brownmillerite interfaces leads to perpendicular magnetic spin ...
Jing Zhang +14 more
doaj +1 more source
A high-performance oxygen evolution catalyst in neutral-pH for sunlight-driven CO2 reduction
Nature Communications, 2019 Solar-to-fuel conversion under mild conditions offers a renewable means to store energy. Here authors report a Brownmillerite oxide for neutral-pH oxygen evolution that, when integrated with an anodized silver cathode, enables a 13.9% energy-conversion ...
Li Qin Zhou +13 more
doaj +1 more source
Diffuse scattering and superstructures in brownmillerites and related materials [PDF]
Acta Crystallographica Section A Foundations of Crystallography, 2011 and related materials H. Kruger1,), T. R. Welberry2, R. L. Withers2, J. D. Fitz Gerald3 S. Stober4 Institute of Mineralogy and Petrography, University of Innsbruck, Austria Research School of Chemistry, The Australian National University, Canberra Research School of Earth Sciences, The Australian National University, Canberra Institute of Geosciences ...
Krüger, Hannes +4 more
openaire +2 more sources
Crystals, 2017 In this paper, we demonstrate the successful incorporation of sulfate and borate into SrFeO3-δ, and characterise the effect on the structure and conductivity, with a view to possible utilisation as a cathode material in Solid Oxide Fuel Cells.
Abbey Jarvis, Peter Raymond Slater
doaj +1 more source