| 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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Maier, Joachim
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2023Lithium storage in titania films as a function of position: Unification of intercalation electrode and super-capacitor concepts
- 2021Roadmap on organic-inorganic hybrid perovskite semiconductors and devicescitations
- 2021Solid Electrolyte Interphase on Li/Na Anodes in Contact with Liquid Electrolytes
- 2021Effects of NiO addition on sintering and proton uptake of Ba(Zr,Ce,Y)O 3−δcitations
- 2019Atomic Structure Analysis of a Second Order Ruddlesden-Popper Ferrite-a High Resolution STEM Study
- 2018Mixed‐Conducting Perovskites as Cathode Materials for Protonic Ceramic Fuel Cells: Understanding the Trends in Proton Uptakecitations
- 2013Influence of Line Defects on the Electrical Properties of Single Crystal TiO2citations
- 2011Cu22Bi12S21Cl16-A mixed conductor with fast one-dimensional copper(I) ion transportcitations
- 2008How Is Oxygen Incorporated into Oxides? A Comprehensive Kinetic Study of a Simple Solid‐State Reaction with SrTiO3 as a Model Materialcitations
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article
Mixed‐Conducting Perovskites as Cathode Materials for Protonic Ceramic Fuel Cells: Understanding the Trends in Proton Uptake
Abstract
<jats:title>Abstract</jats:title><jats:p>The proton uptake of 18 compositions in the perovskite family (Ba,Sr,La)(Fe,Co,Zn,Y)O<jats:sub>3‐</jats:sub><jats:italic><jats:sub>δ</jats:sub></jats:italic>, perovskites, which are potential cathode materials for protonic ceramic fuel cells (PCFCs), is investigated by thermogravimetry. Hydration enthalpies and entropies are derived, and the doping trends are explored. The uptake is found to be largely determined by the basicity of the oxide ions. Partial substitution of Zn on the B‐site strongly enhances proton uptake, while Co substitution has the opposite effect. The proton concentration in Ba<jats:sub>0.95</jats:sub>La<jats:sub>0.05</jats:sub>Fe<jats:sub>0.8</jats:sub>Zn<jats:sub>0.2</jats:sub>O<jats:sub>3‐</jats:sub><jats:italic><jats:sub>δ</jats:sub></jats:italic> is found to be 10% per formula unit at 250 °C, 5.5% at 400 °C, and 2.3% at 500 °C, which are the highest values reported so far for a mixed‐conducting perovskite exhibiting hole, proton, and oxygen vacancy transport. A comprehensive set of thermodynamic data for proton uptake in (Ba,Sr,La)(Fe,Co,Zn,Y)O<jats:sub>3‐</jats:sub><jats:italic><jats:sub>δ</jats:sub></jats:italic> is determined. Defect interactions between protons and holes partially delocalized from the B‐site transition metal to the adjacent oxide ions decrease the proton uptake. From these results, guidelines for the optimization of PCFC cathode materials are derived.</jats:p>