Al2O3, Y2O3기 복합 무기금속산화물의 합성과 수소투과 특성 평가

Abstract

Hydrogen has attracted clean energy media as high-quality and renewed energy source in recent years. On the one hand, a ceramic catalyst and/or catalyst support such as Al2O3, Y2O3 has often preferred choice due to their specific properties such as thermal stability and high surface area. The nanoporous hydrogen selective SiC membrane has been used for application in membrane reactors for the water gas shift and steam reforming reactions. Silicon carbide (SiC) has been used as a structural material because of its excellent of thermal shock and corrosion resistance at elevated temperatures. Due to these advantages, SiC is also available for gas and liquid separation filter material. The metal oxides such as Al2O3, Y2O3 and CeO2 are commonly combined as inorganic additives for densification of SiC ceramic materials. The characterizations of the synthesized powders and composige membranes were measured TG-DTA, XRD, BET and FE-SEM. Hydrogen permeation evaluations were examined at various temperatures under increasing pressure.