e-journal

Three-Dimensional Graphene-Based Macro- and Mesoporous Frameworks for High-Performance Electrochemical Capacitive Energy Storage

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ABSTRACT:
Three-dimensional graphene-based frameworks (3D-GFs) with hierarchical macro- and mesoporous structures are presented. The interconnected macropores are derived from hydrothermally assembled 3D graphene aerogels (GAs), while the mesopores are generated by the silica networks uniformly grown on the surface of graphene. The resulting 3D-GFs exhibit narrow mesopore size distribution (2−3.5 nm), high surface area, and low mass density. These intriguing features render 3DGFs a promising template for creating various 3D porous materials. Specifically, 3D GA-based mesoporous carbons (GA-MC) and metal oxide hybrids (GA-Co3O4, GARuO2)
can be successfully constructed via a nanocasting technology. Benefiting from the integration of meso- and
macroporous structures, 3D GA-MC manifests outstanding specific capacitance (226 F g−1), high rate capability, and excellent cycling stability (no capacitance loss after 5000 cycles) when it is applied in electrochemical capacitors.

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Ketersediaan

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Informasi Detail

Judul Seri

Journal American Chemical Society

No. Panggil

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Penerbit

New York : American Chemical Society., 2012

Deskripsi Fisik

J. Am. Chem. Soc. 2012, 134, 19532−19535

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

ELEKTRONIKA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

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