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New pyrophosphate of ceramic compounds LiNa3-xAgxP2O7 (x = 0.2 and 0.6) is synthesized by a solid-state method. All the compounds crystallize in the orthorhombic lattice with space group C2221. The infrared spectra of these compounds show characteristic bands due to a P2O7 group. The two semicircles observed in the complex impedance identify the presence of the grain interior and grain boundary contributions...
In this work, we research two series of Mn-substituted bismuth molybdates: Bi26-2xMn2xMo10O69-d and Bi26Mo10-2yMn2yO69-d. The synthesis of powder samples is performed by the conventional solid state technology. Samples are characterized by X-ray diffraction, scanning electron microscopy, and chemical analysis methods, and it is shown that single phase Bi26-2xMn2xMo10O69-d and Bi26Mo10-2yMn2yO69-d...
The NaxLi1-xCdVO4 (x = 0.5, 1) orthovanadates were prepared using a solid-state reaction method. The x-ray diffraction patterns (XRDP) of both materials reveal the formation of the Na2CrO4 structure. Vibrational study confirms the existence of [VO4]3− group. Electrical measurements of our compounds have been investigated using complex impedance spectroscopy (CIS) in the frequency and temperature range...
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