A self-encapsulated porous Sb-C nanocomposite anode with excellent Na-ion storage performance.

A new interesting article has been published in Nanoscale. 2018 Nov 7;10(41):19399-19408. doi: 10.1039/c8nr06182c. Epub 2018 Oct 11. and titled:

A self-encapsulated porous Sb-C nanocomposite anode with excellent Na-ion storage performance.

Authors of this article are:

Pham XM , Ngo DT , Le HTT , Didwal PN , Verma R , Min CW , Park CN , Park CJ .

A summary of the article is shown below:

In this study, a self-encapsulated Sb-C nanocomposite as an anode material for sodium-ion batteries (SIBs) was successfully synthesised using an SbCl3-citrate complex precursor, followed by a drying and calcination process under an inert N2 atmosphere. When the molar ratio of SbCl3 to citric acid was varied from 1 : 1 to 1 : 4, the Sb-C nanocomposite with a molar ratio of 1 : 3 (Sb-C3) exhibited the highest specific surface area (265.97 m2 g-1) and pore volume (0.158 cm3 g-1). Furthermore, the Sb-C3 electrode showed a high reversible capacity of 559 mA h g-1 at a rate of C/10 and maintained a high reversible capacity of 430 mA h g-1 even after 195 cycles at a rate of 1C. The Sb-C3 electrode exhibited an excellent rate capability of 603, 445, and 357 mA h g-1 at the rates of C/20, 5C, and 10C, respectively. Furthermore, a full cell composed of an Sb-C3 anode and a Na3V2(PO4)3 cathode exhibited good specific capacity and cyclability, making the Sb-C composite a promising anode material for high-performance SIBs.

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