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Preparation of Asymmetric Tubular Oxygen Separation Membrane with Oxygen Permeable Pr2Ni0.75Cu0.25Ga0.05O4+δ

2010; Wiley; Volume: 8; Issue: 4 Linguagem: Inglês

10.1111/j.1744-7402.2010.02507.x

1744-7402

Moon-Bong Choi, Sun‐Ju Song, Tae‐Won Lee, Han‐Ill Yoo, Uen-Do Lee, Byeongryeol Bang,

Electronic and Structural Properties of Oxides

International Journal of Applied Ceramic TechnologyVolume 8, Issue 4 p. 800-808 Preparation of Asymmetric Tubular Oxygen Separation Membrane with Oxygen Permeable Pr2Ni0.75Cu0.25Ga0.05O4+δ Moon-Bong Choi, Moon-Bong Choi Department of Materials Science and Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757, South KoreaSearch for more papers by this authorSun-Ju Song, Sun-Ju Song Department of Materials Science and Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757, South Korea * song@chonnam.ac.kr Search for more papers by this authorTae-Won Lee, Tae-Won Lee Solid State Ionics Research Laboratory, School of Materials Science and Engineering, Seoul National University, Seoul 151-742, South KoreaSearch for more papers by this authorHan-Ill Yoo, Han-Ill Yoo Solid State Ionics Research Laboratory, School of Materials Science and Engineering, Seoul National University, Seoul 151-742, South KoreaSearch for more papers by this authorUen-Do Lee, Uen-Do Lee Manufacturing System Division, Korea Institute of Industrial Technology, Cheonan-Si, Chungnam 330-825, South KoreaSearch for more papers by this authorByeong-Ryeol Bang, Byeong-Ryeol Bang Manufacturing System Division, Korea Institute of Industrial Technology, Cheonan-Si, Chungnam 330-825, South KoreaSearch for more papers by this author Moon-Bong Choi, Moon-Bong Choi Department of Materials Science and Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757, South KoreaSearch for more papers by this authorSun-Ju Song, Sun-Ju Song Department of Materials Science and Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757, South Korea * song@chonnam.ac.kr Search for more papers by this authorTae-Won Lee, Tae-Won Lee Solid State Ionics Research Laboratory, School of Materials Science and Engineering, Seoul National University, Seoul 151-742, South KoreaSearch for more papers by this authorHan-Ill Yoo, Han-Ill Yoo Solid State Ionics Research Laboratory, School of Materials Science and Engineering, Seoul National University, Seoul 151-742, South KoreaSearch for more papers by this authorUen-Do Lee, Uen-Do Lee Manufacturing System Division, Korea Institute of Industrial Technology, Cheonan-Si, Chungnam 330-825, South KoreaSearch for more papers by this authorByeong-Ryeol Bang, Byeong-Ryeol Bang Manufacturing System Division, Korea Institute of Industrial Technology, Cheonan-Si, Chungnam 330-825, South KoreaSearch for more papers by this author First published: 05 July 2011 https://doi.org/10.1111/j.1744-7402.2010.02507.xCitations: 11 Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract The electrical conductivities and oxygen permeation properties of Pr2Ni0.75Cu0.25Ga0.05O4+δ were measured by conventional DC four-probe method with Pt electrode and gas chromatography. The total conductivities increased with an apparent slope of 1/6, satisfied by the charge neutrality condition at the p-type regime of . A tubular-type, asymmetric, mixed-conducting oxygen separation membrane was fabricated by drain casting method. A microporous, ceramic support was prepared by slurry processing, because the use of a slurry technique and a suspension of dispersed particles provides a lower final porosity and a more homogeneous particle packing than dry-pressing does. The 30 cm long, tubular, porous alumina with a soft surface was successfully prepared by drain casting. The surface SEM images revealed a structure with reasonable porosity and well-necked particles. A mixed-conducting layer of Pr2Ni0.75Cu0.25Ga0.05O4+δ was applied inside of the support tube by drain casting. A dense separation layer was successfully fabricated inside the porous alumina tube by sintering at 1473 K for 8 h in air. Citing Literature Volume8, Issue4July/August 2011Pages 800-808 RelatedInformation