2D nanosheets from fool's gold by LPE: High performance lithium-ion battery anodes made from stone
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2021Access:
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Kaur, H. and Tian, R. and Roy, A. and McCrystall, M. and Smith, R. and Horvath, D.V. and Nicolosi, V. and Coleman, J.N., 2D nanosheets from fool's gold by LPE: High performance lithium-ion battery anodes made from stone, FlatChem, 30, 100295, 2021Abstract:
Recently, it has been shown that it is possible to apply liquid-phase exfoliation to non-layered materials, yielding quasi-2D nanosheets. It has been proposed that even a slight bonding anisotropy in the starting crystal will lead to a platelet-like geometry, albeit with low aspect ratio. While this development opens the way to many previously unexplored 2D materials, a particularly interesting class of crystals for exfoliation are natural-occurring mineral ores due to their diversity and abundance. Here we describe the liquid-phase exfoliation of the natural mineral, pyrite, also known as fool’s gold. The exfoliation process yields highly crystalline, low aspect ratio nanosheets with stoichiometry FeS2, with all impurity and non-platelet material removed during a two-step centrifugation protocol. These 2D pyrite flakes can be fabricated into lithium-ion battery anodes which show remarkable capacities of >1200 mAh g-1.
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http://people.tcd.ie/colemajhttp://people.tcd.ie/nicolov
Author: Coleman, Jonathan; Nicolosi, Valeria
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FlatChem;30;
100295;
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liquid-phase exfoliation, non-layered material, pyrite mineral, iron-disulfide, Nanosheets, lithium-ion batteryDOI:
http://dx.doi.org/10.1016/j.flatc.2021.100295Metadata
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