用热重法研究了BaRE(Cu0.5Fe0.5)2O5+δ(RE=Lu～Pr)样品的氧含量的变化.结果表明仅RE=Pr、Nd、Gd时样品的氧含量随温度和氧分压变化而变化,其它样品的氧含量基本不发生变化.用暂态热重法研究了氧在RE=Pr、Nd、Gd样品的表面反应速度,发现氧在表面吸附速率比脱附要快.
参考文献
| [1] | K. Lehmus;M. Kochi;M. Karppinen;H. Yamauchi;L. Niinisto .Variation of oxygen stoichiometry in BaRE(Cu_(0.5)Fe_(0.5))_2O_(5+δ) double perovskites upon heat treatments under ambient and high pressure[J].International journal of inorganic materials,2000(2/3):203-208. |
| [2] | 周午纵;梁维耀.高温超导基础研究[M].上海:上海科学技术出版社,1999:33-35. |
| [3] | 马卓娜,杨新丽,王卫平,吴俊涛,胡行,高之爽,郭益群.YBa2Cu3O7-δ催化氧化甲苯[J].稀土,2002(01):66-67. |
| [4] | 杨德林,孟令启,李志成,胡行,郭益群,高之爽.YBa2Cu3O7-X的高温氧呼吸特性[J].低温与超导,2001(01):48-50,38. |
| [5] | 杨德林,胡行,郭益群,阎宏杰,李志成,彭奎庆,孟令启,高之爽.钇钡铜氧在气体纯化和空分方面应用初探[J].稀土,2002(03):11-13. |
| [6] | 杨德林,李志成,程桂萍,李国星,高之爽,郭益群,宋红章,胡行.YBa2Cu3O7-x分子筛的制备与应用[J].低温与超导,2002(03):38-41. |
| [7] | Zhili Zhu;Delin Yang;Yiquan Guo et al.Oxygen desorption activation energy of YBa2Cu3O7-x obtained by thermogravimetry with different heating rates[J].Physica,2002,C383:169-174. |
| [8] | Teraoka Y;Zhang H M;Furukawa S et al.Oxygen permeation through perovskite-type oxides[J].Chemistry Letters,1985,14:1743-1746. |
| [9] | Steele BCH. .INTERFACIAL REACTIONS ASSOCIATED WITH CERAMIC ION TRANSPORT MEMBRANES[J].Solid state ionics,1995(0):157-165. |
| [10] | Delin Yang;Hongxia Lu;Hongzhang Song;Jiong Mo;Guoxing Li;Changping Chen;Yiqun Guo;Xing Hu .Experimental study of oxygen diffusion and permeation through YBa_2Cu_3O_(7-x) membranes[J].Journal of Membrane Science,2004(1/2):45-50. |
| [11] | 宋红章,杨德林,卢红霞,李国星,郭益群,胡行.暂态热重法分析混合导电材料YBa2Cu3O7-δ的透氧性能[J].低温与超导,2003(04):34-38. |
| [12] | Shi L T;Tu K N .Formation of a stable shell of YBa2Cu4O8 upon oxygen outdiffusion from superconducting YBa2Cu3O7-δ oxides[J].Applied Physics Letters,1991,59:2040-2042. |
| [13] | Zeng Y.;Lin YS. .A transient TGA study on oxygen permeation properties of perovskite-type ceramic membrane[J].Solid state ionics,1998(3/4):209-221. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%