ALifeInSOFCs · Augmented Lifetime of Infiltrated Solid Oxide Fuel Cells
„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“
- Период
- 2015-09-01 → 2017-08-31
- Финансиране от ЕС
- 183 455 €
- Участници
- 1
- Схема
- MSCA-IF-EF-ST
Линиите свързват координатора с партньорите.
Накратко на български
Твърдите оксидни горивни клетки се анализират, за да се разбере как никеловите аноди се разграждат на микроскопично ниво. Това помага за разработването на по-издръжливи материали и подобряване на електрохимичната им ефективност.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Резултати накратко
Augmented Lifetime of Infiltrated Solid Oxide Fuel Cells
The main focus of the research project was the fundamental understanding and quantification of the microstructural degradation mechanisms affecting the decrease in electrochemical performance of Ni-infiltrated anodes for solid oxide fuel cells (SOFCs). This was achieved by successfully coupling a variety of experimental, characterisation and modelling techniques, such as: i) fabrication and electrochemical testing (via real-time impedance spectroscopy) of infiltrated anodes, ii) ex-situ tomographic reconstruction and advanced characterisation of electrode microstructure before and after degradation, iii) physically-based modelling to quantitatively link the microstructural evolution to the electrochemical response. Complementary studies were carried out in order to develop and apply tools for the electrochemical and microstructural characterisation of electrodes, analysis of reaction and gas transport phenomena, establishment of design guidelines. The following main achievements were obtained: • establishment of a validated modelling framework to decouple the microstructural contribution from the electrochemical performance via impedance spectroscopy; • fundamental understanding of the nickel microstructural evolution at different length scales (micron and nanometres); • indications of material modifications to reduce the electrode degradation, as well as the identification of useless practices currently proposed in the scientific literature; • design and application of new and simplified characterisation techniques to quantify the microstructural evolution of metals on different substrates. These activities demonstrated how the synergic integration of experimental activities, microstructural characterization and model simulations can efficiently identify and quantify the underlying mechanisms of electrode degradation, thus enabling to suggest strategies to enhance their durability and to discard ineffective common practices. This has already stimulated other European research groups, working mainly on battery and energy storage research, to apply the same methodology to analyse other types of degradation mechanisms and consequently to engineer advanced electrode microstructures.
Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз
Цел на проекта
Solid oxide fuel cells (SOFCs) are one of the most promising technologies to produce electricity in a clean and efficient way. However, their practical application is still limited by detrimental degradation during operation as a consequence of convoluted chemical, mechanical and microstructural deterioration processes, occurring especially at the anode when hydrocarbon fuels are used. This project aims to assess the electrode microstructural degradation through a combined experimental/modelling approach consisting of accelerated ageing tests, impedance spectroscopy analysis, tomographic reconstruction of samples, particle-based algorithms and electrochemical model simulations. Infiltrated cermet anodes are considered in the study, due to their well-defined microstructure that allows them to be, at the same time, a good model platform to assess the microstructural evolution and a high performing alternative for SOFC applications. The synergic integration of experimental activities, microstructural characterization and model simulations is expected to identify and quantify the underlying mechanisms of microstructural degradation (e.g., particle coarsening and agglomeration) and to suggest strategies to enhance the durability of infiltrated electrodes (for example, by adding a controlled amount of ceramic nanoparticles to limit the coarsening of metallic particles within the electrode). The project, combining the researcher's expertise in microstructural and electrochemical modelling with the competences in testing and tomographic characterization at the host institution, is expected to be a pillar in the researcher's academic career while significantly contributing to boost the European excellence in a cutting-edge and multidisciplinary topic such as the fabrication and characterization of efficient and durable solid oxide fuel cells.
Оригинален текст от CORDIS (на английски).
Участници
- IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE · LondonКоординаторОбединеното кралство
Връзки
Данни: CORDIS, © Европейски съюз