2Nb 3O 10 layered compound]]>

摘要

Due to unique properties, KCa2Nb3O10compound has received great attention worldwide. High-temperature solid-state reaction is the common route for the synthesis of this compound. In order to propose a new low-temperature method (i.e. hydrothermal synthesis), which could improve the final properties of KCa2Nb3O10, this study has been planned and performed. The preliminary experiments in KOH-Nb2O5and Ca(OH)2-Nb2O5systems revealed that KCa2Nb3O10could be hydrothermally synthesized from a KOH-Ca(OH)2-Nb2O5system using an alkaline condition (i.e. 5 M?