RIS ID

108297

Publication Details

Wang, Y., Wang, C., Wang, Y., Liu, H. & Huang, Z. (2016). Boric acid assisted reduction of graphene oxide: A promising material for sodium ion batteries. ACS Applied Materials and Interfaces, 8 (29), 18860-18866.

Abstract

Reduced graphene oxide, an intensively investigated material for Li-ion batteries, has shown mostly unsatisfactory performance in Na-ion batteries, since its d-spacing is believed to be too small for effective insertion/deinsertion of Na+ ions. Herein, a facile method was developed to produce boron-functionalized reduced graphene oxide (BF-rGO), with an enlarged interlayer spacing and defect-rich structure, which effectively accommodates the sodiation/desodiation and provides more active sites. The Na/BF-rGO half cells exhibit unprecedented long cycling stability, with ∼89.4% capacity retained after 5000 cycles (0.002% capacity decay per cycle) at 1000 mA·g-1 current density. High specific capacity (280 mAh·g-1) and great rate capability were also delivered in the Na/BF-rGO half cells.

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Link to publisher version (DOI)

http://dx.doi.org/10.1021/acsami.6b04774