Boron-doped, carbon-coated SnO2/graphene nanosheets for enhanced lithium storage

Liu Y, Liu P, Wu D, Huang Y, Tang Y, Su Y, Zhang F, Feng X (2015)

Publication Type: Journal article

Publication year: 2015

Journal

Chemistry - A European Journal Wiley

Book Volume: 21

Pages Range: 5617-5622

Journal Issue: 14

DOI: 10.1002/chem.201406029

Abstract

Heteroatom doping is an effective method to adjust the electrochemical behavior of carbonaceous materials. In this work, boron-doped, carbon-coated SnO2/graphene hybrids (BCTGs) were fabricated by hydrothermal carbonization of sucrose in the presence of SnO2/graphene nanosheets and phenylboronic acid or boric acid as dopant source and subsequent thermal treatment. Owing to their unique 2D core-shell architecture and B-doped carbon shells, BCTGs have enhanced conductivity and extra active sites for lithium storage. With phenylboronic acid as B source, the resulting hybrid shows outstanding electrochemical performance as the anode in lithium-ion batteries with a highly stable capacity of 1165 mAhg^-1 at 0.1 Ag^-1 after 360 cycles and an excellent rate capability of 600 mAhg^-1 at 3.2 Ag^-1, and thus outperforms most of the previously reported SnO2-based anode materials. Doping for better anodes: Boron-doped carbon-coated SnO2/graphene hybrids (BCTGs) were fabricated by hydrothermal carbonization of sucrose in the presence of SnO2/graphene (TG) nanosheets and phenylboronic acid or boric acid as dopant source to give BSTGs and subsequent thermal treatment (see figure; GO: graphene oxide). Owing to the dopant B atoms in the hybrid and its 2D core-shell architecture, the hybrid obtained with phenylboronic acid as B source exhibits outstanding cycle stability after 360 cycles and an excellent rate capability at high current density.

Involved external institutions

Shanghai Jiao Tong University / 上海交通大学

China (CN)

How to cite

APA:

Liu, Y., Liu, P., Wu, D., Huang, Y., Tang, Y., Su, Y.,... Feng, X. (2015). Boron-doped, carbon-coated SnO2/graphene nanosheets for enhanced lithium storage. Chemistry - A European Journal, 21(14), 5617-5622. https://doi.org/10.1002/chem.201406029

MLA:

Liu, Yuxin, et al. "Boron-doped, carbon-coated SnO2/graphene nanosheets for enhanced lithium storage." Chemistry - A European Journal 21.14 (2015): 5617-5622.

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