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Issue 66, 2019
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Assembly of reduced graphene oxides into a three-dimensional porous structure via confinement within robust cellulose oligomer networks

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Abstract

The assembly of nanomaterials into a networked superstructure is a strategy used to construct macroscopic porous materials having the functional properties of nanomaterials. However, because nanomaterials generally prefer densely packed assembled states owing to their high surface energies, the construction of a fine porous structure is still a challenge. In this study, we demonstrate the assembly of reduced graphene oxides (rGOs) into a fine porous structure via confinement within robust cellulose oligomer networks. The confinement of rGOs within cellulose oligomer networks was achieved in one step via the enzymatic synthesis of cellulose oligomers. When the resultant cellulose oligomer gels confining rGOs were reduced by hydrogen iodide, the robust cellulose oligomer networks served as a confinement space for rGOs, preventing excessive aggregation of the rGOs and thus encouraging their assembly into a fine porous structure. Electrochemical measurements revealed that the porous rGO materials could act as electrode materials for supercapacitors. Our strategy based on simple physical confinement will allow for the creation of functional porous materials with excellent nanomorphologies from various nanomaterials.

Graphical abstract: Assembly of reduced graphene oxides into a three-dimensional porous structure via confinement within robust cellulose oligomer networks

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Supplementary files

Article information


Submitted
12 Oct 2019
Accepted
19 Nov 2019
First published
27 Nov 2019

This article is Open Access

RSC Adv., 2019,9, 38848-38854
Article type
Paper

Assembly of reduced graphene oxides into a three-dimensional porous structure via confinement within robust cellulose oligomer networks

Y. Hata, Y. Saito, T. Sawada, H. Matsumoto and T. Serizawa, RSC Adv., 2019, 9, 38848
DOI: 10.1039/C9RA08318A

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    [Original citation] - Published by The Royal Society of Chemistry.

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