Please use this identifier to cite or link to this item: https://doi.org/10.1038/s41467-017-02580-3
Title: A non-dispersion strategy for large-scale production of ultra-high concentration graphene slurries in water
Authors: Dong, Lei
Chen, Zhongxin 
Zhao, Xiaoxu 
Ma, Jianhua
Lin, Shan
Li, Mengxiong
Bao, Yang 
Chu, Leiqiang 
Leng, Kai 
Lu, Hongbin
Loh, Kian Ping 
Keywords: Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
LIQUID-PHASE EXFOLIATION
FEW-LAYER GRAPHENE
INTERCALATION COMPOUNDS
IONIC LIQUIDS
GRAPHITE
OXIDE
AEROGELS
ENERGY
FILMS
SUSPENSIONS
Issue Date: 2018
Publisher: NATURE PUBLISHING GROUP
Citation: Dong, Lei, Chen, Zhongxin, Zhao, Xiaoxu, Ma, Jianhua, Lin, Shan, Li, Mengxiong, Bao, Yang, Chu, Leiqiang, Leng, Kai, Lu, Hongbin, Loh, Kian Ping (2018). A non-dispersion strategy for large-scale production of ultra-high concentration graphene slurries in water. NATURE COMMUNICATIONS 9 (1). ScholarBank@NUS Repository. https://doi.org/10.1038/s41467-017-02580-3
Abstract: It is difficult to achieve high efficiency production of hydrophobic graphene by liquid phase exfoliation due to its poor dispersibility and the tendency of graphene sheets to undergo π-π stacking. Here, we report a water-phase, non-dispersion exfoliation method to produce highly crystalline graphene flakes, which can be stored in the form of a concentrated slurry (50 mg mL-1) or filter cake for months without the risk of re-stacking. The as-exfoliated graphene slurry can be directly used for 3D printing, as well as fabricating conductive graphene aerogels and graphene-polymer composites, thus avoiding the use of copious quantities of organic solvents and lowering the manufacturing cost. This non-dispersion strategy paves the way for the cost-effective and environmentally friendly production of graphene-based materials.
Source Title: NATURE COMMUNICATIONS
URI: https://scholarbank.nus.edu.sg/handle/10635/168826
ISSN: 20411723
20411723
DOI: 10.1038/s41467-017-02580-3
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