PDF全文下载:2015050518
张晓兵, 马继, 陈克正*
(青岛科技大学 材料科学与工程学院,山东 青岛 266042)
摘要: 采用一步水热法,实现了对铁醇盐各种多级结构的可控合成。通过改变反应条件(如:Fe3+与尿素的物质的量比,铁离子价态,反应时间以及反应温度)成功合成了球状、竹节状、纱球状、花状、燕窝状、豆瓣状、薄片状、纸团状和层状结构。此外,还着重研究了花状铁醇盐的储锂性能,并在反应前驱体(如金属醇盐)中寻找锂电负极替代材料。
关键词: 铁醇盐; 可控制备; 层级结构; 储锂性能
中图分类号: TB 321 文献标志码: A
Controllable Synthesis of Hierarchical Iron Alkoxides and Their Application in Lithiumion Storage
ZHANG Xiaobing, MA Ji, CHEN Kezheng
(CollegeofMaterials Scienceand Engineering,QingdaoUniversityof Science and Technology,Qingdao266042,China)
Abstract: A detailed study on the controllable synthesis of iron alkoxides hierarchical structures was carried out via a facile onepot hydrothermal procedure. By varying the reaction system conditions (e.g., Fe3+/urea ratio, valence state of iron ions, reaction time and reaction temperature), spheroidal, bamboolike, yarnball like, flowerlike, cubiloselike, watercresslike, flakelike, spitballlike and microlayered structures were successfully synthesized. Additionally, the lithium storage properties of flowerlike iron alkoxides were also investigated, which established a precedent to search for alternative anode materials within the scope of reaction precursors (e.g., metal alkoxides) for lithiumion batteries.
Key words: iron alkoxides; controllable synthesis; hierarchical structures; lithium storage properties
收稿日期: 20140508
基金项目: 国家自然科学基金项目(51072087).
作者简介: 张晓兵(1991—),男,硕士研究生. *通信联系人.
文章编号:16726987(2015)05051806; DOI: 10.16351/j.16726987.2015.05.009