Studies on electrical properties of microwave assisted synthesis of NiO/YSZ composites for high - performance anode in solid oxide fuel cell

<p>NiO/Yttria-Stabilized Zirconia (YSZ) composites which is widely used as anode in solid oxide fuel cell (SOFC) has been prepared using microwaveassisted combustion technique. Different concentrations of NiO has been added to determine the optimum loading. From the XRD results, it was clear that there was no formation of secondary phases in the product. Further, the obtained microstructure and electrical properties of the NiO/YSZ (NYZ) composite material was almost the same as that obtained through other methods of synthesis. However, it was attained in a shorter duration and at low cost, which is an added advantage of this process. This research opens up a new horizon for the synthesis of novel ceramic electrode materials for SOFC application using microwaves.</p

Crystal structures and dielectric properties of 4,4 '-dimethyl-6,6 '-dichlorothioinaigo (Pigment Red 181)

The structures of the red polymorph (space group P (1) over bar) and the black polymorph (space group P2(1)/c) of 4,4'-dimethyl-6,6'-dichlorothioindigo were solved from single-crystal samples. For both polymorphs, the spatial stacking of the flat molecules is driven by pi-stacking and noncovalent interactions within the layers. Spectroscopic (UV-vis, IR and photoluminescence) and thermal properties of the red polymorph were investigated experimentally. The bandgap of this polymorph was estimated as 2.08 eV at room temperature. It is demonstrated that the electric conductivity of the red polymorph follows the hopping mechanism

Crystal structures and dielectric properties of 4,4′-dimethyl-6,6′-dichlorothioindigo (Pigment Red 181)

The structures of the red polymorph (space group P 1) and the black polymorph (space group P21/c) of 4,4′-dimethyl-6,6′-dichlorothioindigo were solved from single-crystal samples. For both polymorphs, the spatial stacking of the flat molecules is driven by π-stacking and noncovalent interactions within the layers. Spectroscopic (UV-vis, IR and photoluminescence) and thermal properties of the red polymorph were investigated experimentally. The bandgap of this polymorph was estimated as 2.08 eV at room temperature. It is demonstrated that the electric conductivity of the red polymorph follows the hopping mechanism