Results 61 to 70 of about 521,383 (205)

D1.1 - OXYGEN CARRIER PREPARATION

open access: yes, 2022
To couple a CLC reactor with a gas turbine, pressurized conditions are needed in the reactors and conditions of high temperature. What are the oxygen carriers (OCs) preparation methods which can better perform in these conditions? Obviously a great part is played by the materials themselves, which will be analyzed in a specific database, but also the ...
Bartocci, Pietro   +4 more
openaire   +1 more source

Argon assisted chemical vapor deposition of CrO$_2$: an efficient process leading to high quality epitaxial films

open access: yes, 2016
A comparative study of the structural, microstructural and magnetic properties of CrO$_2$ thin films grown onto (110) and (100) TiO$_2$ rutile single crystal substrates by chemical vapor deposition (CVD), using CrO$_3$ as chromium precursor and either ...
Conde, O.   +5 more
core   +1 more source

Systematic Control of Carrier Doping without Disorder at Interface of Oxide Heterostructures [PDF]

open access: yes, 2009
We propose a method to systematically control carrier densities at the interface of transition-metal oxide heterostructures without introducing disorders.
Ahn C. H.   +20 more
core   +1 more source

Investigation of barium iron oxides for CO2 capture and chemical looping oxygen uncoupling

open access: yesApplications in Energy and Combustion Science
The performance of two underexploited ternary oxides – Ba3Fe2O6 and Ba5Fe2O8 are investigated for carbon dioxide capture and chemical looping oxygen uncoupling. The ternary compound Ba3Fe2O6 was found to have a structure characterised by space group Pa3¯.
Syed Saqline   +5 more
doaj   +1 more source

Localization of Two-dimensional Electron Gas in LaAlO3/SrTiO3 Heterostructures

open access: yes, 2011
We report strong localization of 2D electron gas in LaAlO3 / SrTiO3 epitaxial thin-film heterostructures grown on (LaAlO3)0.3-(Sr2AlTaO3)0.7 substrates by using pulsed laser deposition with in-situ reflection high-energy electron diffraction.
B. I. Shklovskii   +6 more
core   +1 more source

Growth control of oxygen stoichiometry in homoepitaxial SrTiO3 films by pulsed laser epitaxy in high vacuum [PDF]

open access: yes, 2016
In many transition metal oxides (TMOs), oxygen stoichiometry is one of the most critical parameters that plays a key role in determining the structural, physical, optical, and electrochemical properties of the material. However, controlling the growth to
Choi, Woo Seok   +3 more
core   +3 more sources

Antiferromagnetic phase transition in four-layered high-T_c superconductors Ba_2Ca_3Cu_4O_8(F_yO_{1-y})_2 with T_c=55-102 K: Cu- and F-NMR studies

open access: yes, 2009
We report on magnetic characteristics in four-layered high-T_c superconductors Ba_2Ca_3Cu_4O_8(F_yO_{1-y})_2 with apical fluorine through Cu- and F-NMR measurements. The substitution of oxygen for fluorine at the apical site increases the carrier density
Demler E.   +32 more
core   +1 more source

Microwave Chemical Looping Synergistic Gasification of Polypropylene Plastic and Water Hyacinth

open access: yesFire
The microwave chemical looping synergistic gasification characteristics of municipal solid waste polypropylene plastic and the organic solid waste water hyacinth are experimentally investigated in this study.
Fengxia An   +6 more
doaj   +1 more source

Polarity control of carrier injection at ferroelectric/metal interfaces for electrically switchable diode and photovoltaic effects

open access: yes, 2011
We investigated a switchable ferroelectric diode effect and its physical mechanism in Pt/BiFeO3/SrRuO3 thin-film capacitors. Our results of electrical measurements support that, near the Pt/BiFeO3 interface of as-grown samples, a defective layer ...
C. B. Eom   +10 more
core   +1 more source

Control of a two-dimensional electron gas on SrTiO3(111) by atomic oxygen [PDF]

open access: yes, 2014
We report on the formation of a two-dimensional electron gas (2DEG) at the bare surface of (111) oriented SrTiO3. Angle resolved photoemission experiments reveal highly itinerant carriers with a 6-fold symmetric Fermi surface and strongly anisotropic ...
Bahramy, M. S.   +9 more
core   +3 more sources

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