Preparation of polypyrrole-coated silicon nanoparticles
- 1 January 2006
- journal article
- Published by Elsevier BV in Colloids and Surfaces A: Physicochemical and Engineering Aspects
- Vol. 272 (1-2), 22-26
- https://doi.org/10.1016/j.colsurfa.2005.07.003
Abstract
Silicon (Si) nanoparticles were stabilized by sodium dodecyl sulfate and poly(N-vinylpyrrolidone) in water, and coated with polypyrrole (PPy) via in situ polymerization of pyrrole with FeCl3. TEM images revealed that the Si nanoparticles were successfully coated with PPy (average thickness, ∼2 nm). The Li/PPy-coated Si electrode exhibited improved discharge capacities, compared to that of a reported Li/pure Si electrode, even though the capacity fading problem caused by large-scaled crumbling of the electrode was not overcome.Keywords
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