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应朱斌教授的邀请，武汉理工大学讲师罗雯博士到我校做学术报告。
报告地点：石材厂会议室C-206
报告时间：2019年1月3日9：30-10：30
报告题目：Nanostructured antimony anode for high-performance rechargeable alkali-ion batteries
报告人简介：
罗雯，女，博士，武汉理工大学讲师。武汉理工大学-法国洛林大学联合培养博士生，合作导师为麦立强教授和Jean-Jacques Gaumet教授，2018年6月于武汉理工大学获得工学博士学位。自2018年9月起在武汉理工大学理学院物理系工作，并加入武汉理工大学战略科学家Bruce Dunn教授科研团队及武汉理工大学纳米重点实验室开展科研工作，主要研究领域为功能纳米材料、电化学储能。迄今已在国际学术期刊如Advanced Energy Materials, Nano Energy等,共发表论文30余篇，IF>9.0的30余篇，总引用400余次；其中以第一完成人发表SCI检索论文10篇，申请国家发明专利1项已授权，博士在读期间主持武汉理工大学自主创新基金1项，已结题，评估为优秀。在国际学术会议作10余次口头汇报，获2018 RSC Poster Award，2018 MRS Fall Meeting -ACS Energy Letters Poster Award等奖项。
报告摘要：Antimony (Sb) emerges as an attractive anode material for both lithium, sodium and potassium ion batteries (LIB, SIB, KIB) due to its high theoretical capacity of 660 mA h g-1. We designed and fabricated a novel peapod-like N-doped carbon nanotube encapsulated Sb nanorod composite，Sb@N-C, via a bottom-up confinement approach. The N-doped-carbon coating and thermal-reduction process was monitored by in-situ high-temperature X-ray diffraction characterization. Then, we employed Sb@N-C as an anode for LIB, SIB and KIB, Sb@N-C displayed the best long-term cycle performance among the reported Sb-based anode materials and impressive rate capability up to 20 A g-1. Especially in the case of KIB, the introduction of KFSI electrolyte salt functions as an effective strategy for greatly boosting electrochemical performance. We also identified the potassiation of Sb anode is quite reversible and undergoes multistep processes, combining solid solution reaction and two-phase reaction.
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纳米矿物材料及应用教育部工程应用中心
2019/1/2
