Blar i Institutt for materialteknologi på tidsskrift "Solid State Ionics"
Viser treff 1-14 av 14
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Anelastic properties of La0.6Sr0.4Co1−yFeyO3-δ at high temperatures
(Journal article; Peer reviewed, 2014)The dynamic amplitude dependence of the Young's modulus and the internal friction of La0.6Sr0.4Co0.2Fe0.8O3 −δ (LSCF6428) at high temperatures were evaluated by resonance measurements. At the temperatures from room temperature ... -
Diffusion couple study of the interaction between Cr2O3 and MnCo2O4 doped with Fe and Cu
(Peer reviewed; Journal article, 2019)Manganese cobalt spinel oxides are promising coating materials for the protection of ferritic stainless steel interconnects in solid oxide fuel cell (SOFC) stacks. The interaction between such coatings and the steel is ... -
Effect of B-site substitution on the stability of La0.2Sr0.8Fe0.8B0.2O3-delta, B = Al, Ga, Cr, Ti, Ta, Nb
(Journal article; Peer reviewed, 2012)Single phase, cubic perovskites of composition La0.2Sr0.8Fe0.8B0.2O3 − δ, B = Al, Ga, Cr, Ti, Ta and Nb, were prepared by spray pyrolysis from aqueous precursor solutions. The effect of B-site substitution on the stability ... -
Effect of carbon content and annealing atmosphere on phase purity and morphology of Li2MnSiO4 synthesized by a PVA assisted sol–gel method
(Journal article; Peer reviewed, 2015)Lithium transition metal orthosilicates of the general formula Li2MSiO4 have gained great interest as potential positive electrode material for Li-ion batteries. This study reports the dependence of phase purity and ... -
Electrochemical activation of a diatom-derived SiO<inf>2</inf>/C composite anode and its implementation in a lithium ion battery
(Peer reviewed; Journal article, 2021)Nano-architectured silica is extracted from algae harvested in the ocean. Its electrochemical properties are investigated as an anode material for lithium ion batteries. The beneficial effect of a carbon coating formed by ... -
Inter-diffusion across a direct p-n heterojunction of Li-doped NiO and Al-doped ZnO
(Journal article; Peer reviewed, 2018)We herein report inter-diffusion across the interface between p-type Ni0.98Li0.02O and n-type Zn0.98Al0.02O for various applications including p-n-heterojunction diodes and oxide thermoelectrics. Diffusion couples were ... -
La0.2Sr0.8Fe0.8Ta0.2O3 (-) (delta) based thin film membranes with surface modification for oxygen production
(Journal article; Peer reviewed, 2012)High temperature dense ceramic membranes made from mixed ionic/electronic conducting perovskite ceramics represent a high potential as a reliable source for oxygen and syngas production. In this work, La0.2Sr0.8Fe0.8Ta0.2O3 ... -
Nonlinear mechanical behaviour of Ba0.5Sr0.5Co0.8Fe0.2O3 − δ and in situ stress dependent synchrotron X-ray diffraction study
(Journal article; Peer reviewed, 2017)Perovskite type Ba0.5Sr0.5Co0.8Fe0.2O3 − δ ceramics display nonlinear stress-strain behaviour upon uniaxial compression at room temperature. Step functional loading experiments show that the nonlinear strain response of ... -
Oxygen stoichiometry and transport properties of cerium niobate
(Journal article; Peer reviewed, 2008)CeNbO4 + δ has been synthesized by both solid state and wet chemical routes and characterized with respect to electrical conductivity and oxygen stoichiometry between 900 °C and 1100 °C and pO2 from 1 bar to 0.002 bar. ... -
PVA-assisted combustion synthesis and characterization of porous nanocomposite Li2FeSiO4/C
(Journal article; Peer reviewed, 2012)Porous Li2FeSiO4/C nanocomposites were synthesized by a PVA-assisted combustion method, and phase pure Li2FeSiO4 was produced for samples prepared with 20 and 30 wt.% starch. The electrochemical properties of the Li2FeSiO4/C ... -
Synthesis and oxygen transport properties of La2 − ySryNi1 − xMoxO4 + δ
(Journal article; Peer reviewed, 2016)La2NiO4 + δ-based materials (LN) with tetragonal K2NiF4-type structure exhibit high electronic and oxygen ion conductivity. In this work synthesis, phase relations and oxygen transport properties are reported for the system ... -
The effect of Zr-substitution in La1-xSrxCo0.2M0.6Zr0.2O3-δ (M=Fe, Mn) on the crystal structure, thermal expansion and electronic transport properties
(Journal article; Peer reviewed, 2017)The effect of Zr-substitution on the evolution of crystal structure, thermal expansion and the electronic transport properties is reported for La1‐xSrxCo0.2Fe0.6Zr0.2O3‐δ (0.1 ≤ x ≤ 1.0) and La1‐xSrxCo0.2Mn0.6Zr0.2O3-δ (x ... -
Thermal expansion and electrical conductivity of Fe and Cu doped MnCo2O4 spinel
(Journal article; Peer reviewed, 2018)Manganese cobalt spinel oxides are promising coating materials for corrosion protection of metallic interconnects in solid oxide fuel cell stacks. This work investigates how Fe and Cu doping affect the crystal structure, ... -
Transmission through an Electrochromic Window based on Polyaniline, Tungsten Oxide and a Solid Polymer Electrolyte
(Journal article; Peer reviewed, 1992)An electrochromic window was fabricated by combining polyaniline and tungsten oxide with a solid polymer electrolyte binding the two electrochromic materials together. Polyaniline and tungsten oxide were deposited ...