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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：中科院山西煤化所
学位：博士
所在单位：化工学院
学科：功能材料化学与化工. 物理化学
办公地点：大连理工大学 西校区化工综合楼A212
联系方式：zbzhao@dlut.edu.cn
电子邮箱：zbzhao@dlut.edu.cn
Low temperature plasma synthesis of mesoporous Fe3O4 nanorods grafted on reduced graphene oxide for high performance lithium storage
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论文类型：期刊论文
发表时间：2014-02-21
发表刊物：NANOSCALE
收录刊物：SCIE、EI、PubMed、Scopus
卷号：6
期号：4
页面范围：2286-2291
ISSN号：2040-3364
摘要：Transition metal oxide coupling with carbon is an effective method for improving electrical conductivity of battery electrodes and avoiding the degradation of their lithium storage capability due to large volume expansion/contraction and severe particle aggregation during the lithium insertion and desertion process. In our present work, we develop an effective approach to fabricate the nanocomposites of porous rod-shaped Fe3O4 anchored on reduced graphene oxide (Fe3O4/rGO) by controlling the in situ nucleation and growth of beta-FeOOH onto the graphene oxide (beta-FeOOH/GO) and followed by dielectric barrier discharge (DBD) hydrogen plasma treatment. Such well-designed hierarchical nanostructures are beneficial for maximum utilization of electrochemically active matter in lithium ion batteries and display superior Li uptake with high reversible capacity, good rate capability, and excellent stability, maintaining 890 mA h g(-1) capacity over 100 cycles at a current density of 500 mA g(-1).