About this Research Topic
Solid oxide fuel cells (SOFCs) are well known electrochemical devices that directly convert the chemical energy of a wide variety of fuels (H2, CO, hydrocarbons, alcohols, etc.) into electricity. Regarding their geometry, microtubular SOFCs (mSOFCs) are more appropriate for portable applications, as they present rapid start-up times, easy sealings and strong resistance to thermal cycling. They can be also used in reverse mode to produce hydrogen by steam electrolysis, or syngas by the coelectrolysis of steam and CO2. In addition, microtubular cells can be used as catalytic membranes combining reaction and separation in the same unit. This configuration presents potential benefits such as increased reaction rate, selectivity, yield, etc. and can be coupled for a wide range of reactions.
The present research topic aims to cover all different aspects related to microtubular ceramic cells, including for example the development of innovative fabrication methods, the integration of novel materials (electrodes, ionic/protonic conductors, current collectors, etc.) into microtubular SOFC devices, design of stacks, use of alternative fuels, modelling (thermos-mechanical, multiscale, CFD, etc.), or economic analysis of mSOFC systems. Special focus will be given on improving the electrochemical performance and assuring a long term stability of the cells, for all the aforementioned applications i.e. fuel cell, electrolysis, coelectrolysis and membrane reactors.
Keywords: Microtubular, SOFC, SOEC, ceramic reactor, fuel cells
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