Fabrication of self-binding noble metal/flexible graphene composite paper
Self-binding noble metal (Pt, Au, and Ag)/graphene composite papers as large as 13cm in diameter were fabricated using a flow-directed method where in situ reduced graphene served as a “binder”. The papers were characterized by X-ray diffraction, scanning and transmission electron microscopy, Raman...
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Veröffentlicht in: | Carbon (New York) 2012-10, Vol.50 (12), p.4648-4654 |
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Hauptverfasser: | , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Self-binding noble metal (Pt, Au, and Ag)/graphene composite papers as large as 13cm in diameter were fabricated using a flow-directed method where in situ reduced graphene served as a “binder”. The papers were characterized by X-ray diffraction, scanning and transmission electron microscopy, Raman spectroscopy and X-ray photoelectron spectroscopy. This approach yielded well dispersed metals with various nanostructures both on and between the graphene layers to form papers with good conductivity and flexiblility. The 300°C-annealed Ag/graphene papers were evaluated as binder-free anodes for lithium ion batteries, delivering a reversible charge capacity of 689mAh/g at a current density of 20mA/g. |
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ISSN: | 0008-6223 1873-3891 |
DOI: | 10.1016/j.carbon.2012.05.053 |