| Studies on Oxygen Characteristics of YBa2 Cu3 O7-x and Its Applications to Air Separation and Gas Purification |
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| 引用本文： | 杨德林,莫炯,卢红霞,郭益群,高之爽,胡行. Studies on Oxygen Characteristics of YBa2 Cu3 O7-x and Its Applications to Air Separation and Gas Purification[J]. 中国稀土学报(英文版), 2005, 23(1): 112-115 |
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| 作者姓名： | 杨德林 莫炯 卢红霞 郭益群 高之爽 胡行 |
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| 作者单位： | School of Physical Engineering and Key Laboratory of Material Physics of Ministry of Education of China，Zhengzhou University，Zhengzhou 450052，China，School of Physical Engineering and Key Laboratory of Material Physics of Ministry of Education of China，Zhengzhou University，Zhengzhou 450052，China，School of Physical Engineering and Key Laboratory of Material Physics of Ministry of Education of China，Zhengzhou University，Zhengzhou 450052，China，Department of Chemistry，Zhengzhou University，Zhengzhou 450052，China，School of Physical Engineering and Key Laboratory of Material Physics of Ministry of Education of China，Zhengzhou University，Zhengzhou 450052，China，School of Physical Engineering and Key Laboratory of Material Physics of Ministry of Education of China，Zhengzhou University，Zhengzhou 450052，China |
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| 基金项目： | Project supported by the Science and Technology of Henan Province (991110343) |
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| 摘 要： | Since the discovery of high temperature supercon ductive material YBa2Cu3O7-x ( YBCO in short ),many researchers have especially studied the relation ship between superconductivity and oxygen contents inthis oxide. It was found that the supercondu…
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| 关 键 词： | YBa2Cu3O7 YBCO 氧选择吸附 稀土元素 高温超导材料 气体分离提纯 |
Studies on Oxygen Characteristics of YBa2Cu3O7-x and Its Applications to Air Separation and Gas Purification |
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| Yang Delin,Mo Jiong,Lu Hongxia,Guo Yiqun,Gao Zhishuang,Hu Xing. Studies on Oxygen Characteristics of YBa2Cu3O7-x and Its Applications to Air Separation and Gas Purification[J]. Journal of Rare Earths, 2005, 23(1): 112-115 |
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| Authors: | Yang Delin Mo Jiong Lu Hongxia Guo Yiqun Gao Zhishuang Hu Xing |
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| Abstract: | Oxygen diffusion and oxygen selective adsorption properties of rare earths material YBa2Cu3O7-x (YBCO) were investigated by thermogravimetric, oxygen static adsorption and selectivity adsorption experiments. The results show that YBCO is a very good deoxidizing material. The oxygen desorption of YBCO begins remarkably at about 400 ℃, mass loss can arrive at 1.2% of its original quantity at 800 ℃. Oxygen can be completely absorbed back into the sample again when temperature descends to 400 ℃. The oxygen adsorption selectivity, reproducibility and oxygen adsorption under very low oxygen partial pressure make the material desirable for air separation and gas purification. High purity nitrogen gas was produced with the YBCO molecular sieves in the air separation and gas purification experiments. 0.017 m3 of high purity nitrogen (>99.9999%) can be obtained with 1 kg YBCO molecular sieve in one cycle. As a deoxidant, an obvious advantage of YBCO is that no hydrogen is needed in its applications. |
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| Keywords: | metal materials YBCO oxygen characters gas separation and purification rare earths |
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