Study on zinc oxide reduction using solar energy to establish a hydrogen production cycle

Abstract

The purpose of this experiment is to create a circulation system that generates hydrogen using a redox reaction between zinc and water. The Ellingham diagram shows that the reduction of metal oxides depends on temperature and oxygen partial pressure. The experimental results revealed that the longer the combustion time at the same temperature, the higher the reduction rate. Additionally, it was confirmed that the reduction rate depends on temperature, as expected. When comparing stainless steel tubes and quartz tubes, it was found that the reduction rate of quartz tubes was better than that of stainless steel tubes across all temperature ranges.