Dynamics of Fast Ions in Solids and Its Evolution for Solid State Ionics

固体中快离子的动力学及其固态离子学的演化

基本信息

批准号：
07239105
负责人：
OGUMI Zempashi
金额：
$ 90.05万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research on Priority Areas
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1997
项目状态：
已结题

项目摘要

New ionic conductors with high ion mobility were synthesized. Furthermore, novel processing methods were invented.1. Novel high-ionic conductors(1) New solid solution of halide and hydride were prepared which were highly conductive for H ion.(2) A series of PbィイD21-xィエD2LnWOィイD24+x/2ィエD2 were prepared which were highly conductive for oxide ion and different kind of lantanide were examined. The conduction mechanism was also clarified.(2) New types of polymer electrolyte based on ate-type complex of Al and B were prepared. The electrolytes show a typical single ion conduction behavior. The influence of structure of side chain of oligo-ether group attached to aluminum via Si atom was.(3) Extremely highly branched solid polymer electrolytes with high ionic conductivity was prepared and its conduction was discussed.2. Designing of composite oxide conductive for oxide ion(1) Zirconia ceramics was toughened by nano-size alumina. The addition of fine alumina up to 10% increased the ionic conductivity of YSZ.(2) Pulverized ceria was dispersed in YSZ to enhance chemical stability of ceria against reduction while maintaining its high ionic conductivity.3. Development of novel processing technology(1) Silver iodide was prepared by vapor-phase electrolytic deposition employing RF plasma as conductive fluid.(2) Hollow fibers of CeOィイD22ィエD2 and YSZ were prepared by a CVD-EVD method employing NiO as an oxygen source. Its rate determining step was clarified to be the oxygen transport through the sintered NiO.2) Crystalline oxides were prepared directly from aqueous solution of fluoride complexes.

高度合成了高离子迁移率的新型离子导体，并发明了新的制备方法。(1)制备了新型的H离子导电卤化物和氢化物固溶体。(2)A系列。制备了对氧离子具有高导电性的PbD21-xD2LnWOD24+x/2D2，并对不同种类的镧系元素进行了检测。 (2)制备了基于Al和B的ate型配合物的新型聚合物电解质，该电解质表现出典型的单离子导电行为，并考察了侧链低聚醚基团结构的影响。 (3)制备了具有高离子电导率的极支化固体聚合物电解质并讨论了其传导氧离子的复合氧化物的设计(1)氧化锆。添加高达 10% 的细氧化铝可提高 YSZ 的离子电导率。(2) 在 YSZ 中分散氧化铈粉，可增强氧化铈的化学稳定性，同时保持其高离子电导率。3新型加工技术的发展(1)采用射频等离子体作为导电流体，采用气相电解沉积法制备碘化银。(2)中空纤维以NiO为氧源，通过CVD-EVD方法制备了CeO22D2和YSZ，其速率决定步骤是氧通过烧结NiO的传输。2)直接从氟化物络合物的水溶液制备晶体氧化物。