Jump to main content
Jump to site search

Issue 48, 2015
Previous Article Next Article

Hollow silica–copper–carbon anodes using copper metal–organic frameworks as skeletons

Author affiliations

Abstract

Hollow silica–copper–carbon (H-SCC) nanocomposites are first synthesized using copper metal–organic frameworks as skeletons to form Cu-MOF@SiO2 and then subjected to heat treatment. In the composites, the hollow structure and the void space from the collapse of the MOF skeleton can accommodate the huge volume change, buffer the mechanical stress caused by lithium ion insertion/extraction and maintain the structural integrity of the electrode and a long cycling stability. The ultrafine copper with a uniform size of around 5 nm and carbon with homogeneous distribution from the decomposition of the MOF skeleton can not only enhance the electrical conductivity of the composite and preserve the structural and interfacial stabilization, but also suppress the aggregation of silica nanoparticles and cushion the volume change. In consequence, the resulting material as an anode for lithium-ion batteries (LIBs) delivers a reversible capacity of 495 mA h g−1 after 400 cycles at a current density of 500 mA g−1. The synthetic method presented in this paper provides a facile and low-cost strategy for the large-scale production of hollow silica/copper/carbon nanocomposites as an anode in LIBs.

Graphical abstract: Hollow silica–copper–carbon anodes using copper metal–organic frameworks as skeletons

Back to tab navigation

Supplementary files

Article information


Submitted
02 Jul 2015
Accepted
08 Oct 2015
First published
12 Oct 2015

Nanoscale, 2015,7, 20426-20434
Article type
Paper
Author version available

Hollow silica–copper–carbon anodes using copper metal–organic frameworks as skeletons

Z. Sun, F. Xin, C. Cao, C. Zhao, C. Shen and W. Han, Nanoscale, 2015, 7, 20426
DOI: 10.1039/C5NR04416B

Social activity

Search articles by author

Spotlight

Advertisements