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Novel thermal expansion of lead titanateXING Xianran, DENG Jinxia, CHEN Jun and LIU GuirongDepartment of Physical Chemistry, University of Science & Technology Beijing, Beijing 100083, China摘 要:<正> Lattice parameters of lead titanate were precisely re-determined in the temperature range of -150-950℃ by high precision XRPD measurements......
Article ID: 1003-6326(2005)06-1361-06 Preparation of hyperthermal lithium complex grease MAO Da-heng(毛大恒), FENG Hao(俸 颢), SUN Xiao-ya(孙晓亚) (School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China) Abstract: Using 12-hydroxystearate, nonan-edioic acid and lithium hydroxide as thickener, refined mineral oil and synthetic oil......
准纳米晶钛酸锂的制备及其电化学性能 汪鑫1,常哲敏1,包丽颖1,苏岳锋1 (1.北京理工大学,化工与环境学院,北京,100081) 摘要:利用偏钛酸为钛源,多孔活性炭为模板剂,采用固相合成工艺制备准纳米晶钛酸锂材料.采用X射线衍射法(XRD),扫描电子显微镜(SEM),能谱(EDX)表征材料结构和形貌,用循环伏安(CV)和恒流充放电测试研究材料的电化学性能.结果显示,合成的钛酸锂其主要物相为尖晶石结构的Li_4Ti_5O_(12),添加多孔活性炭作为模板剂能明显提高材料的电化学性能.材料首次可逆嵌脱锂容量可达143mAh·s~(-1),嵌脱锂效率达到95.4%,而且循环性能稳定,30周循环后容量衰减仅为4.22%. 关键词:无机非金属材料; 钛酸锂; 多孔活性炭; 偏钛酸; inorganic nonmetal material; lithium titanate; porous......
HYBRID AND CHARACTERISTIC OF POLYANILINEBARIUM TITANATE NANOCOMPOSITE PARTICLES龚荣洲摘 要:<正>Polyaniline-barium titanate (PAn-Ba-TiO3) ultrafine composite particles were prepared by the oxidative polymerization of aniline with H2O2 while barium titanate nanoparticles were synthesized with a sol-gel method. The infrared spectrogram shows......
J. Cent. South Univ. Technol. (2008) 15: 334-338 DOI: 10.1007/s11771-008-0063-2 Preparation and characterization of nanometer-sized barium titanate powder by complex-precursor method SHI Ai-hua... at room temperature and a spherical morphology. Key words: barium titanate; complex-precursor method; synthesis; nanometer-sized powder  ......
ARTICLE J. Cent. South Univ. (2019) 26: 304-311 DOI: https://doi.org/10.1007/s11771-019-4002-1 Equilibrium concentration of lithium ion in sodium aluminate solution HUANG Wen-qiang(黄文强), LIU Gui... University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: Excess lithium in alumina is significantly bad for aluminum reduction. In this study, the concentration......
J. Cent. South Univ. Technol. (2008) 15: 830-834 DOI: 10.1007/s11771-008-0153-1 Structure characterization and electrochemical properties of new lithium salt LiODFB for electrolyte of lithium ion...: Lithium difluoro(axalato)borate (LiODFB) was synthesized in dimethyl carbonate (DMC) solvent and purified by the method of solventing-out crystallization. The structure characterization of the purified......
Insertion/removal kinetics of lithium ion in spinel LiCuxMn2-xO4 ZENG Rong-hua(曾荣华), LI Wei-shan(李伟善), L? Dong-sheng(吕东生), HUANG Qi-ming(黄启明), ZHAO Ling-zhi(赵灵智) School of Chemistry...; Abstract: The insertion/removal processes of lithium ion in spinel lithium manganese oxide(LiMn2O4......
Aging Effect on Lanthanum Doped Ferroelectric Lead Titanate Ceramics Jin Xueqin1,Zhu Yudan1,Zhu Jie1,Sun Dazhi1 (1.Department of Chemistry, Shanghai Normal University, Shanghai 200234, China... transition temperature in lead titanate doped with lanthanum increases during aging at ferroelectric phase was reported. It is well known that lattice defects, such as vacancies and solute atoms......
Aging Effect on Lanthanum Doped Ferroelectric Lead Titanate Ceramics孙大志,金雪琴,朱杰,朱玉丹摘 要:<正>Ferroelectric devices are widely applied in many fields... the origin of aging effect in ferroelectrics because these materials possess different defects and exhibit various aging behavior. The reverse transition temperature in lead titanate doped with lanthanum......