Electrochemical Synthesis of Ferrate (VI): Factors Influencing Synthesis and Current Research Trends

Abstract

Ferrate(VI) emerges as a multifaceted substance endowed with a substantial redox potential, showcasing considerable potential for utilization in realms such as battery materials and advancements in water treatment technologies. There are primarily three methods for preparing Ferrate(VI), including peroxide heating method, hypochlorite oxidation method and electrochemical synthesis method. This review centrally delves into the electrochemical synthesis of ferrate(VI), given its mild reaction conditions, emerges as a highly potent means to synthesize Ferrate(VI) with substantial potential for industrial applications.The intricacies of influencing factors, including anode materials, electrolyte composition, electrolyte additives, reaction temperature, current density, membranes (ion-exchange membranes), and reactor types, are meticulously detailed, all of which exert a discernible influence on the synthesis process. A comprehensive exposition of the current research landscape and prevailing trends in the electrochemical synthesis of ferrate(VI) is presented. However, the current discourse on the electrochemical synthesis of Ferrate(VI) remains insufficient. Addressing these issues not only demands the optimization of reaction conditions but also necessitates the exploration of novel methodologies. For instance, incorporating the contextual application of Ferrate(VI) and achieving in-situ synthesis for immediate utilization are pivotal directions for future research and development.