采用溶胶.凝胶法制备了单相的La1-xSrxCoO3-δ系列导电陶瓷,对其结构性能进行了表征,并探讨了La1-xSrxCoO3-δ导电陶瓷在电接触材料中应用的可能性。结果表明,随着样品中sr掺杂量的增加,La1-xSrxCoO3-δ样品的衍射峰峰位向大角度方向略有偏移,衍射峰峰值减小,并发生宽化。溶胶·凝胶法制备的La1-xSrxCoO3-δ...
摘要: 以快速溶胶-凝胶法合成了不同x值的La1-xSrxCoO3复合氧化物,XRD分析表明均为钙钛矿晶体结构,估算平均粒度已达到纳米级.研究了溶胶-凝胶制备过程的条件并提出凝胶化起始温度的控制问题,对降低煅烧温度和缩短煅烧时间也进行了实验. 暂无资源 收藏 引用 分享 推荐文章 溶胶-凝胶法制备La1-xSrxCoO3-δ导电...
溶胶-凝胶法合成La1-xSrxCoO3粉末 () 摘要: 在醋酸镧、硝酸锶和硝酸钴溶液中,加入乙二醇溶液,用溶胶-凝胶法合成了La1-xSrxCoO3(x=0.2)粉末。通过电镜分析研究了干凝胶分解温度、制备干凝胶时乙二醇的浓度及溶液pH值等工艺条件对粉末性能的影响;通过X射线衍射分析研究了粉末的变化过程。研究表明:干凝胶的分解温...
Anomalous magnetism in strained La1-xSrxCoO3 epitaxial films (0 # x # 0.5) H. W. Yang1*, H. R. Zhang1,2*, Y. Li1, S. F. Wang2, X. Shen1, Q. Q. Lan1, S. Meng1, R. C. Yu1, B. G. Shen1 & J. R. Sun1 1Beijing National Laboratory for Condensed Matter & ...
In this project, the La1-xSrxCoO3 (x~0.05) nanofibers, with diameters in the range of ~30-80 nm, were prepared by the electrospinning process. Various substrates such as aluminum foil, silicon dioxide, and a specially designed tester were used to collect and anneal the nano...
摘要: 以碳酸盐或氧化物为原料, 采用微波固相反应合成技术成功地合成了纯钙钛矿结构的La1-xSrxCoO3(LSC, x=0.10～0.50)粉体.研究表明:La2O3和SrCO3是2.45 GHz微波透明材料, 而Co3O4则具有很强的微波偶合吸收能力;La2O3, SrCO3, Co3O4混合料中SrCO3含量对混合物的... 查看全部>> ...
制备条件对La1-xSrxCoO3体系I—M相变的影响 维普资讯 http://www.cqvip.com
多孔莫来石纤维陶瓷负载La1-xSrxCoO3(x=0.2～0.8)的NO+CO催化研究 维普资讯 http://www.cqvip.com
Local Structure of La1-xSrxCoO3 determined from EXAFS and neutron PDF studies(通过EXAFS和中子PDF研究确定的La1-xSrxCoO3的局部结构).pdf 2020-03-03上传 Local Structure of La1-xSrxCoO3 determined from EXAFS and neutron PDF studies(通过EXAFS和中子PDF研究确定的La1-xSrxCoO3的局部结构) ...
The magnetic and transport properties of La1−xSrxCoO3 films prepared by laser ablation have been investigated. The metal–insulator transition was observed in the films with decreasing Sr2+ concentration (if x⩽0.25). Analysis of the experimental results revealed that the transport of carriers ...