Characterization of a Porous Carbon Material Functionalized with Cobalt-Oxide/Cobalt Core-Shell Nanoparticles for Lithiu
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Characterization of a Porous Carbon Material Functionalized with Cobalt-Oxide/Cobalt Core-Shell Nanoparticles for Lithium Ion Battery Electrodes Dalaver H. Anjum, Shahid Rasul, Manuel A. Roldan-Gutierrez and Pedro M. F. J. Costa MRS Advances / Volume 1 / Issue 15 / January 2016, pp 1061 - 1066 DOI: 10.1557/adv.2016.263, Published online: 15 April 2016
Link to this article: http://journals.cambridge.org/abstract_S2059852116002632 How to cite this article: Dalaver H. Anjum, Shahid Rasul, Manuel A. Roldan-Gutierrez and Pedro M. F. J. Costa (2016). Characterization of a Porous Carbon Material Functionalized with Cobalt-Oxide/Cobalt Core-Shell Nanoparticles for Lithium Ion Battery Electrodes. MRS Advances, 1, pp 1061-1066 doi:10.1557/adv.2016.263 Request Permissions : Click here
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MRS Advances © 2016 Materials Research Society DOI: 10.1557/adv.2016.263
Characterization of a Porous Carbon Material Functionalized with CobaltOxide/Cobalt Core-Shell Nanoparticles for Lithium Ion Battery Electrodes
Dalaver H. Anjum1, Shahid Rasul2, Manuel A. Roldan-Gutierrez1 and Pedro M. F. J. Costa2 1
Imaging and Characterization Lab, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia 2
Department of Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
ABSTRACT A nanoporous carbon (C) material, functionalized with Cobalt-Oxide/Cobalt (CoO/Co) core-shell nanoparticles (NPs), was structurally and chemically characterized with transmission electron microcopy (TEM) while its electrochemical response for Lithium ion battery (LIB) applications was evaluated as well. The results herein show that the nanoporous C material was uniformly functionalized with the CoO/Co core-shell NPs. Further the NPs were crystalline with fcc-type lattice on the Co2+ oxide shell and hcp-type core of metallic Co0. The electrochemical study was carried out by using galvanostatic charge/discharge cycling at a current density of 1000 mA g1. The potential of this hybrid material for LIB applications was confirmed and it is attributed to the successful dispersion of the Co2+/ Co0 NPs in the C support.
INTRODUCTION Graphite material has been used in commercial LIB applications for at least two decades [1]. However, due to its relatively lower storage capacity, graphite has reached its performance limit in meeting today’s energy storage demands [2]. This is why new materials have been introduced as an alternative to graphite-based anodes. In regards to this point, transition metal oxides (TMOs) seem to be promising candidates due to their known high energy storage capacity [3]. Cobalt monoxide (CoO) is perhaps the most interesting and suitable alternative for an anode-material because of its storage capacity as well as
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