Rapid solid-state synthesis of Mn3O4 nanocrystals at room temperature

Abstract

A rapid all-solid-state process based on the solid-state reaction of manganese salts with alkalis is developed to synthesize crystalline Mn₃O₄ nanoparticles at room temperature, and the obtained Mn₃O₄ nanocrystals show competitive magnetic properties. Note that additional MnO(OH) may be yielded when the solid-state reaction proceeds too quickly. This work provides an environmentally friendly, cost-effective and highly productive solid-state process for rapid production of Mn₃O₄.