황-요오도 열화학 수소제조 공정에서 다양한 크기의 Cu/Fe/Al2O3 구형 촉매를 이용한 삼산화항 분해

Abstract

Cu/Fe/Al2O3 granules with various sizes have been prepared by a combination of sol-gel and oil drop method for the use in sulfur trioxide decomposition, a subcycle in thermochemical sulfur-iodine cycle to split water in the hydrogen and oxygen. The size of composite granules have been mainly changed by the flow-rate of the gel mixture before dropping in the synthesis. The structural properties of the samples were comparable with granule size. In the reaction, the catalytic activity was enhanced by decreasing size in the entire reaction temperature ranges.