In-Situ catalytic surface modification of micro-structured La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) Oxygen Permeable Membrane Using Vacuum-Assisted technique

摘要: This paper aims at investigating the means to carry out in-situ surface modification of La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3-δ (LSCF) oxygen permeable membrane by using vacuum assisted technique. The unique structure LSCF hollow fibre used in this study, which consists an outer dense separation layer and conical-shaped microchannels open inner has allowed be as a structured substrate for where catalyst can deposited. A solution similar material, was prepared sol-gel Effects calcination temperature heating rate were investigated XRD TGA ensure pure perovskites obtained. It found that lower obtain perovskite phase if slower is used. SEM photograph shows distribution onto deposition technique strongly related viscosity catalytic sol. Interestingly, it amount deposited viscous slightly higher than less might due difficulty sol infiltrate result, thicker observed lumen rather microchannels. Therefore, process should precisely controlled homogeneous deposition. Analysis elemental composition will studied future energy dispersive X-ray Spectroscopy (EDX) determine elements membranes. Once analysis confirmed, permeation carried out.