Three-dimensional macroporous graphene/TiO2 nanocomposite as anode material for lithium ion batteries
A simple method based on alternating heating–quenching cycles is exploited to synthesize a three-dimensional (3D) macroporous graphene structure that is characterized by a hierarchically interconnected flexible network of high-quality graphene nanosheets with few oxygen-containing moieties. The structure can be employed as a suitable scaffold to load functional nanoparticles and as a fast transport channel for charge carriers. As a proof of concept, we fabricate novel graphene/P25 nanocomposites that are examined as stable high-performance anode materials for lithium ion batteries; the prepared nanocomposites feature excellent electrochemical performance with a capacity as high as 120 mA h g–1after 100 cycles that is 4.8 times larger than that of bare P25.
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Document Type: Research Article
Publication date: April 1, 2015
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- Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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