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Characteristics of Proton Conductors BaCe1-xYxO3- and BaCe0.9Sm0.1O3- and Dehydrogenation of Al Melt with Composed Hydrogen Pump |
WANG Dong; FAN Jianhua; LIU Chunming; WANG Changzhen |
College of Materials and Metallurgy; Northeastern University |
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Cite this article:
WANG Dong; FAN Jianhua; LIU Chunming; WANG Changzhen. Characteristics of Proton Conductors BaCe1-xYxO3- and BaCe0.9Sm0.1O3- and Dehydrogenation of Al Melt with Composed Hydrogen Pump. Acta Metall Sin, 2007, 43(11): 1228-1232 .
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Abstract BaCe0.9Y0.1O3-α,BaCe0.85Y0.15O3-α and BaCe0.9Sm0.1O3-α proton conductors were prepared by solid state reaction. X-ray Diffraction(XRD) indicated the powders doped 10%Y were single perovskite phase. The powders doped 15%Y and 10%Sm didn`t have Y2O3 and Sm2O3 respectively. It was concluded that solid sulubility limit of Y is above 0.15 and that of Sm is above 0.10 in BaCeO3. By laser light scattering paticle size analysis indicated that average particle size of powders changed larger and particles that particle size is about 5μm accounted for the most quantitatively after calcination. TG-DSC analysis displayed the sintering temperature of proton conductors was about 1360℃. SEM showed these proton conductors were composed of two particles whose size ranged from 1μm to 10μm. The Dehydrogenation result indicated deydrogenation current getted higher when the temperature of Al melt,water vapor pressure and external voltage getted higher independently. By CaZr0.9In0.1O3-α hydrogen sensor the hydrogen activity was 0.0536 and 0.0445 mlH2/100gAl when the temperature of Al melt was 780℃, PH2O was apart 4122.8Pa and 4366.0Pa.
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Received: 12 February 2007
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[1]Iwahara H,Esaka T,Uchida H,Maeda N.Solid State Ion- its,1981;3/4:359 [2]Iwahara H,Uchida H,Tanaka S.Solid State lonics,1983; 9/10:1021 [3]Mitsui A,Miyayama M,Yanagida H.Proc 3rd Meeting on Chemical Sensors,Tokyo,Japan:1984 [4]Iwahara H,Uchida H,Ono K,Ogaki K.J Electrochem Soc,1988;135:529 [5]Hibino T,Mizutani K,Yajima T,Iwahara H.Solid State Ionics,1992;57:303 [6]Iwahara H,Esaka T,Uchida H,Yamauchi T,Ogaki K. Solid State Ionics,1986;18/19:1003 [7]Iwahara H,Uchida H,Nagano T,Koide K.Denki Kagaku, 1989;57:992 (岩原弘育,内田裕之,长野贵小,出邦博.电气化学,1989;57:992) [8]Iwahara H,Uchida H,Morimoto K.Denki Kagaku,1990; 58:178 (岩原弘育,内田裕之,森木清幸.电气化学,1990;58:178) [9]Iwahara H.Solid State Ionics,1992;52:99 [10]Iwahara H.Solid State Ionics,1995;77:289 [11]Hibino T,Hashimoto A,Suzuki M,Sano M.J Electrochem Soc,2002;149:A1503 [12]Gokcen N A,Chipman J.Trans AIME,1952;194:171 [13]Zhou G D.Dictionary of Chemistry.Beijing:Chemical Industry Press,2004:670 (周公度.化学辞典.北京:化学工业出版社,2004:670) [14]Yang N R,Yue W H.The Handbook of Inorganic Metal- loid Meterials Atlas.Wuhan:Wuhan University of Tech- nology Press,2000:213 (杨南如,岳文海.无机非金属材料图谱手册.武汉:武汉工业大学出版社,2000:213) |
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