MIEC integration

In the prospective future, it can be expected that MIECs will be further integrated into nanoscale... 

In a recent paper, the authors investigated the integration of MIEC membranes for air separation in a small-to-medium-scale unit for H2 production (in the range of 650-850 N m /h) via autothermal reforming of methane [65]. 

The integration of MC membranes and fuel cells within NG combined cycle (NGCC) plants can outperform conventional amine absorption NGCC retrofitting strategies for post-combustion CO2 capture [66]. Furthermore, DPMs based on MCs impregnated in porous MIEC materials such as perovskites can be used... 

In the steady state the concentrations of all defects do not change with time. For the onedimensional configuration and for z having only one value, and y ei must be uniform. Equations (7.6) and (7.7) can then be integrated to yield the general dependence of the ionic current / =y iS and the electronic current =JaS (S is the cross-sectional area of the MIEC) on the voltage drop, V, across the MIEC and the chemical potential difference, on the MIEC as fixed by the electrodes ... 

Reduced stabilized zireonia is black. As it oxidizes it become transparent. Following the propa tion of the front between the dark and transparent part in a single crystal b(0) has been determined. Instead of following the front, one can follow the integrated intensity changes due to diffusion of defects. This has been used to determine b(0) in SrTiOj doped with Fe impurities by following the absorption lines of the Fe ions. " The concentration of the optically active Fe ions increases at the expense of the Fe ions as the MIEC oxidizes. 

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