物理大讲堂——新型电池科学与技术系列学术论坛(44)

时间:2018-11-14    点击:

报告题目:Towards wire-like nanoscale anode electrodes manufactured through magnetic-field-induced

     synthesis

报 告 人:  Marcin Krajewski

     Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw,

     Pawinskiego 5B, 02-106, Poland.

报告时间:2018年11月15日(星期四)14:00-16:00
报告地点:吉林大学中心校区 唐敖庆楼9楼报告厅

报告简介:

For ages, the magnetic field has been recognized as either an intrinsic material property or a parameter which describes the magnetic interactions between materials. Recently, it has been demonstrated that the magnetic field can be also treated as a reaction parameter, similar to conventional reaction conditions i.e. temperature, pressure, time, and chemical additives [1]. In general, this kind of processes are called as a magnetic-field-induced (MFI) synthesis and are commonly applied in order to produce various magnetic wire-like nanostructures.

So far, it has been proven that the MFI processes can be successfully applied in the manufacturing of different metallic and alloy wire-like nanomaterials, including: iron nanowires [2], cobalt nanowires [3], nickel nanowires [4], and nickel-cobalt nanowires [5,6]. In fact, most of these materials reveal the characteristic morphologies i.e. they are composed of straight chains of nanoparticles. These segmented structures deliver high specific surface area. Another interesting feature of the wire-like nanomaterials obtained in the MFI syntheses is that they can be easily oxidized. This process usually leads to the formation of the core-shell nanostructures consisting of the metallic or alloy core and oxide shell. In fact, such structures can serve as promising anode electrodes in the energy storage devices, including: Li-ion and Na-ion batteries as well as supercapacitors.

参考文献:

[1] M. Krajewski, Nanoscale 9 (2017) 16511–16545.

[2] M. Krajewski, W.S. Lin, H.M. Lin, K. Brzozka, S. Lewinska, N. Nedelko, A. Slawska-Waniewska, J. Borysiuk, D. Wasik, Beilstein J. Nanotechnol. 6 (2015) 1652–1660.

[3] M.D.L. Balela, S. Yagi, E. Matsubara, J. Electrochem. Soc. 158 (2011) D210–D216.

[4] M. Li, K.N. Xie, J.W. Ye, Y.Z. Wu, L. Li, Mater. Sci. Technol. 30 (2014) 712–714.

[5] M. J. Hu, B. Lin, S.H. Yu, Nano Res. 1 (2008) 303–313.

[6] M.Z. Wu, G.Q. Liu, M.T. Li, P. Dai, Y.Q. Ma, L. D. Zhang, J. Alloys Compd. 491 (2010) 689–693.

主办单位:

吉林大学物理学院

新型电池物理与技术教育部重点实验室

 

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