A Novel Zirconium-Based Perovskite-Type Membrane Material for Oxygen Permeation  

作　　者：Jian Hua TONG Wei Shen YANG Rui CAI Bai Chun ZHU 

机构地区：[1]State Key Laboratory of Catalysis,Dalian Institute of Chemical Physics Chinese Academy of Sciences,P.O.Box 110,Dalian 116023

出　　处：《Chinese Chemical Letters》2001年第9期835-838,共4页中国化学快报(英文版)

基　　金：This work was supported by the National Advanced Materials Committee(Grant No.715-006-0122);the Ministry of Science and Technology of China(G1999022401);the National Natural Science Foundation of China(Grant No.59789201).

摘　　要：A novel zirconium-based membrane material of BaCo0.4Fe0.4Zr0.2O3-6 with cubic perovskite structure was synthesized for the first time through a method of citric and EDTA acid combined complexes. The structural stability was characterized by XRD, O-2-TPD and H-2-TPR techniques respectively. The high oxygen permeation flux of 0.873 mL/cm(2) min at 950 degreesC was obtained under He/Air gradient. Meanwhile, the single activation energy for oxygen permeation and the long-term steady operation of 200 h at 800 degreesC were achieved.A novel zirconium-based membrane material of BaCo0.4Fe0.4Zr0.2O3-6 with cubic perovskite structure was synthesized for the first time through a method of citric and EDTA acid combined complexes. The structural stability was characterized by XRD, O-2-TPD and H-2-TPR techniques respectively. The high oxygen permeation flux of 0.873 mL/cm(2) min at 950 degreesC was obtained under He/Air gradient. Meanwhile, the single activation energy for oxygen permeation and the long-term steady operation of 200 h at 800 degreesC were achieved.

关 键 词：PEROVSKITE mixed-conducting oxygen separation ZIRCONIUM 

分 类 号：TQ028.8[化学工程]