Issue 47, 2015

A porous graphene/carbon nanowire hybrid with embedded SnO2 nanocrystals for high performance lithium ion storage

Abstract

A high-yield porous graphene/carbon nanowire (PG/CNW) hybrid is synthesized via in situ chemical oxidative polymerization followed by carbonization and KOH activation. An easy and efficient vacuum-assisted impregnation followed by thermal treatment at a temperature of 350 °C is adopted to crystallize the SnO2 nanocrystals, realizing their embedment into the PG/CNW matrix. When evaluated for the electrochemical properties in lithium ion batteries, the obtained SnO2–PG/CNW composite exhibits a high lithium storage capacity of up to 1200 mA h g−1, good cycling performance and outstanding rate capability. The preparation strategy is easy and efficient, providing a novel methodology for various types of heterogeneous nanocrystals embedded into porous matrix configuration for energy storage applications.

Graphical abstract: A porous graphene/carbon nanowire hybrid with embedded SnO2 nanocrystals for high performance lithium ion storage

Supplementary files

Article information

Article type
Paper
Submitted
30 Aug 2015
Accepted
21 Oct 2015
First published
21 Oct 2015

J. Mater. Chem. A, 2015,3, 23844-23851

A porous graphene/carbon nanowire hybrid with embedded SnO2 nanocrystals for high performance lithium ion storage

J. Tang, J. Yang, X. Zhou, H. Yao and L. Zhou, J. Mater. Chem. A, 2015, 3, 23844 DOI: 10.1039/C5TA06859B

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