Mechanochemical reactions between Ag2O and V2O5 to form crystalline silver vanadates |
| |
| Authors: | Shigeharu Kittaka Sachie NishidaTsukio Ohtani |
| |
| Institution: | Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Okayama 700-0005, Japan |
| |
| Abstract: | Solid-state reactions between Ag2O and V2O5 were studied under ball-milling conditions. Single-phase crystalline Ag4V2O7 was formed from the mixture of Ag2O and V2O5 of corresponding (2:1) composition. The main component in the product when the Ag2O mole fraction is less than V2O5 is amorphous AgVO3, which is crystallized into needle-like α-AgVO3 in the presence of water. Excess V2O5 was hydrated into V2O5·nH2O intercalated with Ag+ ions. The mixtures with more than two parts of Ag2O relative to V2O5 are composite materials of Ag4V2O7 and Ag3VO4, together with Ag2O. The crystalline phases in these systems resist attack by water. |
| |
| Keywords: | Ball milling Mechanochemistry Silver vanadate Ag4V2O7 Mechanochemical crystal growth |
| 本文献已被 ScienceDirect 等数据库收录！ |
