Non-destructive delamination detection in solid oxide fuel cells

Acetic acid internal reforming in a solid oxide fuel cell-reactor using Cu–CeO2 anodic composites

“…The corresponding open circuit ACimpedance spectra obtained at 850 C for the same acetic acid/steam ratios, showed that the electrolyte ohmic resistance, R bulk , is almost similar and independent from the CH 3 COOH/H 2 O ratio (see Supp. 2), suggesting a good electrode adherence [32].…”

Cobalt-free composite cathode for SOFCs: Brownmillerite-type calcium ferrite and gadolinium-doped ceria

“…47-1744) without any impurity phase; CFO's indexed primary peaks are summarized in Fig. 1 Thermal stress from the difference in the TECs of adjacent cell components may result in detachment of the interface between layers during the repeated thermal cycling operation [5,26]. Moreover, the thermal expansion incompatibility can cause thermal stress in SOFCs and thus result in poor longterm thermal stability performance [4,5].…”

Modelling effects of current distributions on performance of micro-tubular hollow fibre solid oxide fuel cells

“…The electrochemical reactions generating current within the porous electrodes were described within the charge conservation equations using the source term j S , which is a volumetric current density calculated from the local overpotential using the Butler-Volmer equation at each electrode [16]. These equations refer to pure kinetic control of the half cell electrochemical reactions; concentration polarisation was shown below to be negligible for the range of conditions used.…”

“…The volumetric exchange current densities j 0,an and j 0,ca and apparent Tafel coefficients as listed in Table 1 captions. Table 1 were taken from the literature [16]:…”

“…However, the latter approach was used in modelling planar-SOFCs to investigate the effects of electrode/electrolyte delamination [16].…”