Facile synthesis of porous MgO-CaO-SnOx nanocubes implanted firmly on in situ formed carbon paper and their lithium storage properties
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Porous MgO-CaO-SnOx nanocubes (crystalline SnOx and amorphous MgO/CaO) were synthesized to implant firmly and uniformly onto in situ formed carbon paper by a facile route including a template-free growth process and calcining treatment. Low-cost filter paper was used to realize the part implantation of cubes as well as a source of carbon paper. The mechanistic analysis demonstrates that Mg2+/Ca2+ ions and ammonium hydroxide played important roles in the formation of the cubic phase precursor. This MgO-CaO-SnOx-nanocubes/carbon paper could be directly applied as a binder-free film electrode for lithium-ion batteries eliminating conventional electrode fabrication processes, and an average capacity contribution of ~719 mA h g-1 for MgO-CaO-SnOx nanocubes through 40 cycles was achieved. The facile synthesis strategy combines the material synthesis, dispersion and electrode fabrication, which further opens a new avenue for the application of nano-architectures in energy storage. © 2014 the Partner Organisations.
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