Synthesis of oxides utilizing the explosive reaction characteristics of graphene oxide

Abstract

Explosion method is a new pathway for preparing oxides. However, it has several drawbacks, including complex process, poor safety, high impurities, and uneven particle size distribution. This study proposes a simple, safe, and easily controllable explosive synthesis method. This study utilizes the explosive reaction of graphene oxide under low-temperature heating to induce the decomposition of hydroxides and form oxides. The research results indicate that after the explosion reaction, hydroxides completely decompose and form oxides (MgO, ZnO, and TiO₂). The impact force of the explosion was relatively small, effectively avoiding contamination. The SEM results indicate that the average grain sizes of MgO, TiO₂, and ZnO are 41.7, 23.8, and 58.2 nm, respectively. Their grain size distribution was also relatively uniform, and no abnormally grown grains were observed.