VLADIKOVA , D.

One of the issues defining the performance of an SOFC stack is to estimate and check during operation the behavior of all components (i.e. cell, sealant, interconnects). Each component has at least one function which is not strictly related to the power or heat generation but all are strategic due to their contribution to the degradation of the...

A new approach for in-situ conductivity measurements of the Ni phase in Ni/YSZ cermet anode during its formation and redox cycling, applying impedance spectroscopy, is introduced. The electrochemical testing is combined with direct gases (H2, N2 and their mixtures) permeability measurements. The resistance of the samples, which has inductive...

Solid oxide fuel Cells (SOFC) are intrinsically reversible which makes them attractive for the development of reversible devices (rSOC). The main hurdles that have to be overcome are the higher degradation in electrolyzer (EL) mode and the slow and difficult switching form mode to mode. This work aims at the development and experimental...

This work presents results of a measurement setup which was constructed for understanding the performance contributions of the individual compartments and reactions taking place in the patented concept of IDEAL-Cell (described in detail in (1)). By inserting a third measurement point at the central membrane of an ideal cell, it was possible to...