Blar i NTNU Open på forfatter "Øygarden, Vegar"
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4d/5d Transition Metals in Perovskite Cathode Materials
Øygarden, Vegar (Doktoravhandlinger ved NTNU, 1503-8181; 2013:131, Doctoral thesis, 2013)Solid oxide fuel cells (SOFCs) have the potential to convert chemical energy to electrical energy in an efficient and environmentally friendly manner. The high operational temperatures of the first generation of SOFCs ... -
Crystal structure, thermal expansion and electrical conductivity of LaCoxNiyMozO3
Grande, Tor; Øygarden, Vegar (Journal article; Peer reviewed, 2016)The effect of Mo-substitution was investigated for the LaCoxNiyMozO3 system, obtaining single-phase perovskite for Mo-substitutions up to 20 at%. The crystal structure of the perovskite changed from rhombohedral, orthorhombic ... -
Stability and compatibility of fuel cells based on proton conducting materials
Bjørnevik, Inger Marie (Master thesis, 2011)Stability and compatibility of the proton conducting electrolyte material La6WO12 with the potential cathode materials LaCoO3 and La2NiO4 were investigated by means of solid-solid diffusion couples. Reactivity studies were ... -
Synthesis and oxygen transport properties of La2 − ySryNi1 − xMoxO4 + δ
Gómez, S. Y.; Gurauskis, Jonas; Øygarden, Vegar; Hotza, D.; Grande, Tor; Wiik, Kjell (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
Øygarden, Vegar; Grande, Tor (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 ...