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Ultralight Multifunctional Carbon‐Based Aerogels by Combining Graphene Oxide and Bacterial Cellulose
Author(s) -
Li Chao,
Wu ZhenYu,
Liang HaiWei,
Chen JiaFu,
Yu ShuHong
Publication year - 2017
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201700453
Subject(s) - aerogel , graphene , materials science , oxide , bacterial cellulose , cellulose , carbon fibers , pyrolysis , carbon nanofiber , porosity , nanotechnology , supercapacitor , carbon nanotube , nanofiber , chemical engineering , composite material , composite number , electrochemistry , electrode , chemistry , engineering , metallurgy
Nanostructured carbon aerogels with outstanding physicochemical properties have exhibited great application potentials in widespread fields and therefore attracted extensive attentions recently. It is still a challenge so far to develop flexible and economical routes to fabricate high‐performance nanocarbon aerogels, preferably based on renewable resources. Here, ultralight and multifunctional reduced graphene oxide/carbon nanofiber (RGO/CNF) aerogels are fabricated from graphene oxide and low‐cost, industrially produced bacterial cellulose by a three‐step process of freeze‐casting, freeze‐drying, and pyrolysis. The prepared RGO/CNF aerogel possesses a very low apparent density in the range of 0.7–10.2 mg cm −3 and a high porosity up to 99%, as well as a mechanically robust and electrically conductive 3D network structure, which makes it to be an excellent candidate as absorber for oil clean‐up and an ideal platform for constructing flexible and stretchable conductors.