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Date of Publication:2017-01-01

Journal:材料研究学报

Volume:31

Issue:3

Page Number:161-167

ISSN No.:1005-3093

Abstract:Silicon nanoribbons (Si-NRs) were successfully synthesized by
   direct-current (DC) arc-discharge plasma in a mixed atmosphere of
   hydrogen and helium, and then characterized by transmission electron
   microscopy (TEM), atomic force microscopy (AFM), X-ray diffraction
   (XRD), Raman spectra and X-ray photoelectron spectroscopy (XPS), etc..
   This work provides a low cost preparation method for the synthesis of
   Si-NRs, and it could be commercially produced with a production rate of
   18.6 g·h-1. The Si NRs consist of fine sheets of ca 28 nm in width, over
   200 nm in length and ca 6.2 nm in thickness with specific surface area
   of 164 m~2·g~(-1). The measured electrochemical performance of the
   Si-NRs as anode of lithium ion batteries reveals that the first
   discharge specific capacity is 2460 mAh·g-1 and it reaches to 316
   mAh·g~(-1) after 40 cycles, which exhibits a high activity of
   insertion/desertion of Li~+ ions and possible potentials for further
   improvement of the cycle stability.

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