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Assembling and nanocutting graphene/CNT sponge for improved lithium-ion batteries

Assembling and nanocutting graphene/CNT sponge for improved lithium-ion batteries Graphene-based materials have exhibited high potential for applications in the field of energy generation and storage because of its high surface area and porosity. Herein, we present a facile strategy to assemble graphene/carbon nanotubes into well-dispersed three-dimensional sponge and subsequently cut nano-scale pores via nickel nanoparticles for enhancing anode’s performance in lithium-ion batteries. Our characterizations reveal that the hybrid aerogels exhibit a lot of nanoscale channels and pores due to the Ni-nanocutting process, resulting in an improved specific surface area 254 m2/g in contrast with 187 m2/g for the pristine materials. The hybrid aerogels are subsequently used as anode for lithium-ion battery and exhibit a greatly improved performance after nanocutting treatment. Meanwhile, the specific capacity of supercapacitor with the Ni-cutting aerogel electrode can achieve as high as 475 F/g, which is almost 68 times than that of the pure material (7 F/g). This route may open a facile engineering way to produce porous and high performance electrode for specific electrochemical applications. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Assembling and nanocutting graphene/CNT sponge for improved lithium-ion batteries

Ionics , Volume 23 (5) – Feb 20, 2017

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References (44)

Publisher
Springer Journals
Copyright
Copyright © 2017 by Springer-Verlag Berlin Heidelberg
Subject
Chemistry; Electrochemistry; Renewable and Green Energy; Optical and Electronic Materials; Condensed Matter Physics; Energy Storage
ISSN
0947-7047
eISSN
1862-0760
DOI
10.1007/s11581-017-2031-z
Publisher site
See Article on Publisher Site

Abstract

Graphene-based materials have exhibited high potential for applications in the field of energy generation and storage because of its high surface area and porosity. Herein, we present a facile strategy to assemble graphene/carbon nanotubes into well-dispersed three-dimensional sponge and subsequently cut nano-scale pores via nickel nanoparticles for enhancing anode’s performance in lithium-ion batteries. Our characterizations reveal that the hybrid aerogels exhibit a lot of nanoscale channels and pores due to the Ni-nanocutting process, resulting in an improved specific surface area 254 m2/g in contrast with 187 m2/g for the pristine materials. The hybrid aerogels are subsequently used as anode for lithium-ion battery and exhibit a greatly improved performance after nanocutting treatment. Meanwhile, the specific capacity of supercapacitor with the Ni-cutting aerogel electrode can achieve as high as 475 F/g, which is almost 68 times than that of the pure material (7 F/g). This route may open a facile engineering way to produce porous and high performance electrode for specific electrochemical applications.

Journal

IonicsSpringer Journals

Published: Feb 20, 2017

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