High-Quality Steam-Stable Tubular Silica Membranes for Gas Separation (2004)
Huiskes, C., Luiten, M.W.J., Kruidhof, H., Benes, N.E., Blank, D.H.A., Bouwmeester, H.J.M.
Spijksma, G.I., Bouwmeester, H.J.M., Blank, D.H.A.
New heterometallic interesting trinuclear, Zr{g3, l2-NH(C2H4O)2}3[Ti(OiPr)3]2 encountering a nona-coordinated central zirconium atom crystallizes at )30 C from a solution of zirconium and titanium...
Pham, Mai T.N., Boukamp, B.A., Bouwmeester, H.J.M., Blank, D.H.A.
Dual phase composites made by dispersing a metallic phase into a ferroelectric matrix are of great interest due to significant enhancement in the dielectric constant (). In this study thin films of...
Pulsed laser deposition of PZT/Pt composite thin films with high dielectric constants (2004)
Pham, M.T.N., Boukamp, B.A., Rijnders, G., Bouwmeester, H.J.M., Blank, D.H.A.
PbZr0.53Ti0.47O3 (PZT) thin films containing nanoparticles of Pt (3–10 nm) were produced using pulsed laser deposition (PLD). The Pt content can be tuned by varying the energy density of the laser...
Samuel De Lint, W.B., Benes, N.E., Lyklema, J., Bouwmeester, H.J.M., Wessling, M.
Theoretical models for the prediction of nanofiltration separation performance as a function of, e.g., pH and electrolyte composition require knowledge on the ion-surface adsorption chemistry....
Nigge, A., Romer, E.W.J., Bouwmeester, H.J.M., Schulte, T.R.
The transport and catalytic properties of mixed conducting composites prepared from Gd0.7Ca0.3CoO3-δ (GCC) and Ce0.8Gd0.2O1.9 (CGO) were determined. In total, three compositions with 43, 60 and 75...
Development of oxygen-permeable ceramic membranes for NOx-sensors (2001)
Schulte, Thomas, Waser, Rainer, Romer, E.W.J., Bouwmeester, H.J.M., Nigge, Ulrich, Wiemhöfer, Hans-Dieter
Several mixed ionic–electronic conductors such as Gd1–xCaxCoO3–d (GCC) and La1–xSrxCo1–yCuyO3–d as well as composite materials like Gd1–xCaxCoO3–d / Ce1–xGdxO2–d (GCCCGO) have...
Supported perovskive gas separation membranes by pulsed-laser deposition (2000)
Span, E.A.F., Blank, D.H.A., Bouwmeester, H.J.M., Rogalla, H., Verweij, H.
Kinetic decomposition of La0.3Sr0.7CoO3−δ perovskite membranes during oxygen permeation (1998)
Bouwmeester, H.J.M., Burggraaf, A.J.
In this paper, a study is presented towards the stability of oxygen permeable membranes of perovskite La0.3Sr0.7CoO3−δ in an oxygen pressure gradient. It is shown that phase separation occurs at...
Thermodynamics and Transport of Ionic and Electronic Defects in Crystalline Oxides (1997)
Lankhorst, Martijn H.R., Bouwmeester, H.J.M., Verweij, H.
The first part of this article concerns the thermodynamics of point defects. In the traditional analysis of reactions in which point defects are involved, point defects are assumed to be ideally...
Importance of electronic band structure to nonstoichiometric behaviour of La0.8Sr0.2CoO3 (1997)
Lankhorst, Martijn H.R., Bouwmeester, H.J.M., Verweij, H.
The partial energy and entropy involved in the process of oxygen incorporation into the mixed oxygen ion and electronic conducting La0.8Sr0.2CoO3 was measured by oxygen coulometric titration. The...
Brosda, S., Bouwmeester, H.J.M., Guth, U.
Both thermal stability and electrical conductivity of alkali ion conducting Na2CO3 and Na2SO4, were improved by adding alkaline earth carbonates and sulfates, respectively, as well as insulating...
Chemical diffusion and oxygen exchange of La0.6Sr0.4Co0.6Fe0.4O3-d (1997)
Elshof Ten, J.E., Lankhorst, M.H.R., Bouwmeester, H.J.M.
The transport parameters of La0.6Sr0.4Co0.6Fe0.4O3¿¿ were determined by electrical conductivity relaxation and high temperature coulometric titration experiments. The experimental response curves...
Chen, C.S., Kruidhof, H., Bouwmeester, H.J.M., Verweij, H., Burggraaf, A.J.
Oxygen permeation measurements were performed on erbia-stabilized bismuth oxide-silver (40 v/o) composite membranes in the range of thickness of 1.60–0.23 mm and temperature of 850–650 °C. Air...
Ionic conductivity of perovskite LaCoO3 measured by oxygen permeation technique (1997)
Chen, C.H., Kruidhof, H., Bouwmeester, H.J.M., Burggraaf, A.J.
Oxygen permeation measurement is demonstrated, not only for a mixed oxide ionic and electronic conductor, but also as a new alternative to determine ambipolar conductivities, which can be usually...
Lankhorst, Martijn H.R., Bouwmeester, H.J.M., Verweij, H.
The equilibrium oxygen chemical potential and the partial energy and entropy of O2in perovskites La1−xSrxCoO3−δwere measured as a function ofδandxby high-temperature oxygen coulometric...
Oxygen permeatin of La0.3Sr0.7CoO3-d (1997)
Chen, C.H., Bouwmeester, H.J.M., Doorn Van, E.A., Kruidhof, H., Burggraaf, A.J.
The oxygen permeability of dense La0.3Sr0.7CoO3−δ membranes has been measured in the range 750–1100°C under various oxygen partial pressure gradients. A sweep gas method was employed. Results...
Tsiakaras, P., Marnellos, G., Athanasiou, C., Stoukides, M., Elshof Ten, J.E., Bouwmeester, H.J.M., ...
The steady-state current-overpotential characteristics of the O2,La0.6Sr0.4Co0.8Fe0.2O3 − δ/YSZ interface have been studied as a function of oxygen partial pressure and temperature. Ideal Nernst...
Oxygen permeation through oxygen ion oxide-noble metal dual phase composites (1996)
Chen, C.S., Kruidhof, H., Bouwmeester, H.J.M., Verweij, H., Burggraaf, A.J.
Oxygen permeation behaviour of three composites, yttria-stabilized zirconia-palladium, erbia-stabilized bismuth oxidenoble metal (silver, gold) was studied. Oxygen permeation measurements were...
Oxygen transport through La1 − xSrxFeO3 − δ membranes II. Permeation in air/CO, CO2 gradients (1996)
Elshof Ten, J.E., Bouwmeester, H.J.M., Verweij, H.
Oxygen permeation measurements were performed on dense La1 − xSrxFeO3 − δ (x = 0.1-0.4) membranes in large oxygen activity gradients, i.e. air/CO, CO2, in the temperature range 1173–1323 K,...
Preparation of gas-tight strontium-doped lanthanum cobaltate by an aqueous sol-gel process (1996)
Chen, C.H., Kruidhof, H., Bouwmeester, H.J.M., Burggraaf, A.J.
Gas-tight dense membranes of highly Sr-doped LaCoO3 (such as the composition La0.3Sr0.7CoO3 chosen in this study) are difficult to prepare using usual synthesis processes. This report presents an...
Oxidative coupling of methane in a mixed-conducting perovskite membrane reactor (1995)
Elshof Ten, J.E., Bouwmeester, H.J.M., Verweij, H.
Ionic-electronic mixed-conducting perovskite-type oxide La0.6Sr0.4Co0.8Fe0.2O3 was applied as a dense membrane for oxygen supply in a reactor for methane coupling. The oxygen permeation properties...
Oxygen transport through La1-xSrxFeO3-(delta) membranes. I. Permeation in air/He gradients (1995)
Elshof Ten, J.E., Bouwmeester, H.J.M., Verweij, H.
Oxygen permeation measurements in air/He gradients were performed on dense La1 ¿ xSrxFeO3 ¿ ¿ membranes in the composition range x = 0.1¿0.4 and temperature range 1123¿1323 K. Pretreatment of...
Activation of methane using solid oxide membranes (1995)
Elshof Ten, J.E., Hassel Van, B.A., Bouwmeester, H.J.M.
Dense membranes of mixed-conducting perovskite-type oxides La0.6Sr0.4,CO0.8Fe0.2O3 and La0.8Ba0.2Co0.8Fe0.2O3 were used for methane coupling by application of pressure-driven O2 permeation. High...
Oxygen permeation flux through La1-ySryFeO3 limited by carbon monoxide oxidation rate (1995)
Hassel Van, B.A., Elshof Ten, J.E., Bouwmeester, H.J.M.
The oxygen permeation flux through La1-ySryFeO3-δ (y = 0.1, 0.2) in a large oxygen partial pressure gradient (air/CO, CO2 mixture) was found to be limited by the carbon monoxide oxidation rate at...
Chen, C.S., Boukamp, B.A., Bouwmeester, H.J.M., Cao, G.Z., Kruidhof, H., Winnubst, A.J.A., ...
Yttria-stabilized cubic zirconia (YSZ)-palladium dual phase composites have been investigated. The percolative composite containing 40 vol% Pd (ZYPd40) showed a much larger oxygen permeability than...
Bouwmeester, H.J.M., Kruidhof, H., Burggraaf, A.J.
Attention is drawn to the possible involvement of the surface exchange kinetics in limiting the rate of oxygen permeation through mixed-conducting oxide ceramics. A theoretical approach is provided...
Kruidhof, H., Bouwmeester, H.J.M., Burggraaf, A.J.
New results on the oxygen permeability of perovskite-type oxides SrCo0.8B'0.2O3¿¿ (with B'=Cr, Fe, Co and Cu) and La0.6Sr0.4CoO3¿¿ are presented. The occurrence of order-disorder transitions at...
Oxygen permeation modelling of perovskites (1993)
Hassel Van, B.A., Kawada, T., Sakai, N., Yokokawa, H., Dokiya, M., Bouwmeester, H.J.M.
A point defect model was used to describe the oxygen nonstoichiometry of the perovskites La0.75Sr0.25CrO3, La0.9Sr0.1FeO3, La0.9Sr0.1CoO3 and La0.8Sr0.2MnO3 as a function of the oxygen partial...
Ion and mixed conducting oxides as catalysts (1992)
Gellings, P.J., Bouwmeester, H.J.M.
This paper gives a survey of the catalytic properties of solid oxides which display oxygen ion or mixed (i.e. ionic + electronic) conductivity. Particular consideration is given to the...
Thermochemical stability and nonstoichiometry of erbia-stabilized bismuth oxide (1992)
Kruidhof, H., Bouwmeester, H.J.M., Vries De, K.J., Gellings, P.J., Burggraaf, A.J.
A phase study has been performed of high oxygen ion conducting erbia-stabilized bismutch oxide (1-x)Bi2O3·xEr2O3 (BE100X) using thermal analysis and X-ray powder diffraction. Investigation of the...
Oxygen semi-permeability of erbia-stabilized bismuth oxide (1992)
Bouwmeester, H.J.M., Kruidhof, H., Burggraaf, A.J., Gellings, P.J.
The isothermal permeability of oxygen through sintered dense disks of bismuth oxide stabilized with 25 mol% erbia (BE25) has been studied at 610–810°C and oxygen pressures of 0.0001–1 atm. It is...
Impedance spectroscopy and surface study of potassium-selective silicone rubber membranes (1991)
Wal Van Der, P.D., Sudholter, E.J.R., Boukamp, B.A., Bouwmeester, H.J.M., Reinhoudt, D.N.
Impedance spectroscopy measurements of silicone rubber membranes containing potassium-selective neutral carriers are reported. Two types of silicone rubbers are studied viz. the commercially...