Metallic Nanoparticles and Proton Conductivity: Improving Proton Conductivity of BaCe0.9Y0.1O3- and La0.75Sr0.25Cr0.5Mn0.5O3- by Ni-doping
| العنوان: | Metallic Nanoparticles and Proton Conductivity: Improving Proton Conductivity of BaCe0.9Y0.1O3- and La0.75Sr0.25Cr0.5Mn0.5O3- by Ni-doping |
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| المؤلفون: | Maria Teresa Caldes, Nicolas Besnard, Odile Bohnke, Veyis Gunes, Angelique Jarry, Olivier Joubert, Messaoud Benamira, Nicolas Dupré, Kostian V. Kravchyk |
| المساهمون: | Institut des Matériaux Jean Rouxel (IMN), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Ecole Polytechnique de l'Université de Nantes (EPUN), Université de Nantes (UN)-Université de Nantes (UN), Institut des Molécules et Matériaux du Mans (IMMM), Le Mans Université (UM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | ECS Transactions ECS Transactions, Electrochemical Society, Inc., 2012, 45 (1), pp.143-154. ⟨10.1149/1.3701303⟩ |
| بيانات النشر: | HAL CCSD, 2012. |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | Materials science, Proton, Doping, 02 engineering and technology, [CHIM.MATE]Chemical Sciences/Material chemistry, Conductivity, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Physical chemistry, [CHIM]Chemical Sciences, 0210 nano-technology, Metal nanoparticles, ComputingMilieux_MISCELLANEOUS |
| الوصف: | In this work we have used metallic nanoparticles to improve proton conductivity of the ceramic electrolyte BaCe0.9Y0.1O3-δ (BCY) and of the electrode material La0.75Sr0.25Cr0.5Mn0.5O3-δ (LSCM). Instead of adding metallic nanoparticles as a separate phase, they were dissolved in the compounds as their oxidized form (Ni2+). The metal nanoparticles precipitated from compounds upon heating under reducing atmosphere. Below 600°C under reducing atmosphere, BaCe0.9-xY0.1NixO3-δ compounds exhibit higher conductivity than BCY. Thus, an increase of one order of magnitude was observed for BaCe0.7Y0.1Ni0.2O3-δ. A protonic contribution to the total conductivity is observed below 600°C. This phenomenon is more pronounced for the compounds containing more nickel in surface which can facilitate the dissociation of hydrogen and the incorporation of protons in the structure. La0.75Sr0.25Cr0.5Mn0.5-xNixO3-δ compounds show also a protonic contribution to the total conductivity below 400°C. NMR results confirmed that these compounds contain protons. |
| اللغة: | English |
| تدمد: | 1938-5862 1938-6737 |
| DOI: | 10.1149/1.3701303⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4486addfeed6f402d7f71e70f9e9c67 https://hal-univ-lemans.archives-ouvertes.fr/hal-02074258 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....d4486addfeed6f402d7f71e70f9e9c67 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19385862 19386737 |
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| DOI: | 10.1149/1.3701303⟩ |