Publikasjoner og ansvarsområder
Keramiske membraner for hydrogensamfunnet
Chemical stability and H2 flux degradation of cercer membranes based on lanthanum tungstate and lanthanum chromite
Ceramic–ceramic composite (cercer) membranes of (Mo-doped) lanthanum tungstate, La27(W,Mo)5O55.5−δ, and lanthanum chromite, La0.87Sr0.13CrO3−δ, have recently been shown to exhibit H2 permeabilities among state-of-the-art. The present work deals with the long-term stability of these cercer membranes ...
Solubility of transition metal interstitials in proton conducting BaZrO3 and similar perovskite oxides
The defect chemistry of foreign transition metals in perovskite oxides was investigated by first-principles calculations with focus on Ni and Zn in Y-doped BaZrO3. Additional transition metals (Cu, Fe, Pd, Pt, and Ag) and perovskites (SrZrO3 and SrTiO3) were considered for comparison. The octahedral...
Dual phase high-temperature membranes for CO2 separation – performance assessment in post- and pre-combustion processes
Dual phase membranes are highly CO2-selective membranes with an operating temperature above 400 °C. The focus of this work is to quantify the potential of dual phase membranes in pre- and post-combustion CO2 capture processes. The process evaluations show that the dual phase membranes integrated wit...
Oxygen permeation and creep behavior of Ca1-xSrxTi0.6Fe0.15Mn0.25O3-δ (x=0, 0.5) membrane materials
Oxygen permeation measurements were performed on dense symmetric samples of Ca0.5Sr0.5Ti0.6Fe0.15Mn0.25O3−δ and compared to CaTi0.6Fe0.15Mn0.25O3−δ in order to assess the influence of the perovskite lattice volume on oxygen permeation. Oxygen flux measurements were performed in the temperature range...