| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Moos, Ralf
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024Powder aerosol deposited calcium cobaltite as textured P-type thermoelectric material with power factors approaching single crystal valuescitations
- 2023Gauge to simultaneously determine the electrical conductivity, the Hall constant, and the Seebeck coefficient up to 800 °C
- 2023Analysis of defect mechanisms in nonstoichiometric ceria–zirconia by the microwave cavity perturbation methodcitations
- 2023Chemical expansion of CeO2−δ and Ce0.8Zr0.2O2−δ thin films determined by laser Doppler vibrometry at high temperatures and different oxygen partial pressurescitations
- 2021Novel, low-cost device to simultaneously measure the electrical conductivity and the Hall coefficient from room temperature up to 600 °Ccitations
- 2021Linking the Electrical Conductivity and Non-Stoichiometry of Thin Film Ce1−xZrxO2−δ by a Resonant Nanobalance Approachcitations
- 2021Linking the electrical conductivity and non-stoichiometry of thin film Ce1−xZrxO2−δ by a resonant nanobalance approachcitations
- 2020Determination of the Dielectric Properties of Storage Materials for Exhaust Gas Aftertreatment Using the Microwave Cavity Perturbation Methodcitations
- 2020Cyclic and square-wave voltammetry for selective simultaneous NO and O2 gas detection by means of solid electrolyte sensorscitations
- 2019Manufacturing Dense Thick Films of Lunar Regolith Simulant EAC-1 at Room Temperaturecitations
- 2019Flexible, heat-resistant and flame-retardant glass fiber nonwoven/glass platelet-composite separator for lithium-ion batteries
- 2016Platform to develop exhaust gas sensors manufactured by glass-solder-supported joining of sintered yttria-stabilized zirconiacitations
- 2016Effect of annealing on the permittivity of ceramic films manufactured by the Aerosol Deposition Method
- 2015Effect of annealing on the permittivity of ceramic films prepared by the Aerosol Deposition Method
- 2015Some practical points to consider with respect to thermal conductivity and electrical resistivity of ceramic substrates for high-temperature gas sensorscitations
- 2014A laboratory test setup for in situ measurements of the dielectric properties of catalyst powder samples under reaction conditions by microwave cavity perturbation: set up and initial testscitations
- 2014Detection of NO by pulsed polarization technique using Pt interdigital electrodes on yttria-stabilized zirconiacitations
- 2012Influence of sintering conditions on doped PZT ceramics for base-metal electrode multilayer actuatorscitations
- 2008Defect chemistry of donor-doped and undoped strontium titanate ceramics between 1000° and 1400°C
- 2008Dependence of the intrinsic conductivity minimum of SrTiO3 ceramics on the sintering atmosphere
- 2008Hall mobility of undoped n-type conducting strontium titanate single crystals between 19 K and 1373 K
- 2008Solubility of lanthanum in strontium titanate in oxygen-rich atmospheres
- 2006Nanoscaled p-type semiconductors for gas sensing : nanopowders, nanofilms, and nanowires
- 2006Effect of electrodes and zeolite cover layer on hydrocarbon sensing with p-type perovskite SrTi0.8Fe0.2O3-δ thick and thin filmscitations
- 2005Hydrocarbon sensing with thick and thin film p-type conducting perovskite materialscitations
- 2004Hydrocarbon sensing with thick and thin film p-type conducting perovskite materials
- 2004Thick and thin film p-type conducting perovskite materials for hydrocarbon sensing
- 2003A hydrocarbon sensor based on p-type strontium titanate ferrate
Places of action
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article
Linking the Electrical Conductivity and Non-Stoichiometry of Thin Film Ce1−xZrxO2−δ by a Resonant Nanobalance Approach
Abstract
<jats:p>Bulk ceria-zirconia solid solutions (Ce1−xZrxO2−δ, CZO) are highly suited for application as oxygen storage materials in automotive three-way catalytic converters (TWC) due to the high levels of achievable oxygen non-stoichiometry δ. In thin film CZO, the oxygen storage properties are expected to be further enhanced. The present study addresses this aspect. CZO thin films with 0 ≤ x ≤ 1 were investigated. A unique nano-thermogravimetric method for thin films that is based on the resonant nanobalance approach for high-temperature characterization of oxygen non-stoichiometry in CZO was implemented. The high-temperature electrical conductivity and the non-stoichiometry δ of CZO were measured under oxygen partial pressures pO2 in the range of 10−24–0.2 bar. Markedly enhanced reducibility and electronic conductivity of CeO2-ZrO2 as compared to CeO2−δ and ZrO2 were observed. A comparison of temperature- and pO2-dependences of the non-stoichiometry of thin films with literature data for bulk Ce1−xZrxO2−δ shows enhanced reducibility in the former. The maximum conductivity was found for Ce0.8Zr0.2O2−δ, whereas Ce0.5Zr0.5O2-δ showed the highest non-stoichiometry, yielding δ = 0.16 at 900 °C and pO2 of 10−14 bar. The defect interactions in Ce1−xZrxO2−δ are analyzed in the framework of defect models for ceria and zirconia.</jats:p>