| Attributs | Valeurs |
|---|
| type
| |
| Is Part Of
| |
| Subject
| |
| Title
| - Facile Synthesis of Single-Crystalline γ-CuI Nanotetrahedrons and Their InducedTransformation to Tetrahedral CuO Nanocages
|
| has manifestation of work
| |
| related by
| |
| Author
| |
| Abstract
| - We report a high-yield facile synthesis of uniform single-crystalline γ-CuI nanocrystals with tetrahedralmorphology from the reaction between Cun and KI under ambient conditions. In our method, I- perform theroles of reactant and surface stabilizing agent, thereby reducing the complexity of the reaction by eliminatingthe need for an external capping agent. Nanotetrahedrons grow from single-crystalline seeds whose growthhas been promoted by iodide-induced oxidative etching of twinned seeds. These nanocrystals have Td symmetryin which three triangular faces meet at each corner, and thus may be classified as platonic solids. Removalof excess free I- in solution initiates the dissolution of CuI nanotetrahedrons and simultaneous oxidation toCuO nanocages. Transmission electron microscopy was used to trace the hollowing process, and the nanoscaleKirkendall effect and other possible mechanisms were discussed for the formation of void interiors.
|
| article type
| |
| is part of this journal
| |
