Concepedia

Abstract

A metastable form of with α‐‐type structure (layered ) was synthesized directly from α‐FeOOH or by hydrothermal reaction at 230°C using aqueous mixed‐alkaline solutions such as or . Highly crystallized samples could be obtained by a one‐step process. The yield of the layered strongly depends on the composition of the starting mixture. Preliminary tests on electrochemical lithium deintercalation/intercalation show poor performance between 4.5 and 1.5 V.