Polymorphic transformations in Cu2Se, Ag2Se, AgCuSe and the role of partial cation-cation and anion-anion replacement in stabilizing their modificationsPolymorphic TransformationAngular IntervalRhombic StructureSilver SelenideElementary Cell ParameterA review of studies of the crystalline structure of copper ...
Cul and Cu2Se, both of which have an FCC anion lattice in the α phase, are discussed as representative examples. In both cases the excluded volume model provides an accurate description of the near neighbor cation-anion pair correlation function. It is found, however, that a significant ...
By making use of cation-exchange approach, montmorillonite-Cu 2S (MMT-Cu 2S) nanocomposite was prepared and characterized. Its conductivity was found to be 3.03 脳 10 4 S m 1. Pyrrole was introduced to MMT-Cu 2S and polymerized within the interlayer to obtain MMT-Cu 2S-polypyrrole (MMT-...
The disordered cubic polymorphs are a variant of the zincblende (ZnS) structure, which consists of tetrahedral S-cages (Wyckoff position 4c) with a cation (Zn) positioned in the center (4a). In disordered CTS, the Zn cation is randomly replaced by Cu and Sn, leading to a partial cation...