Journal
CARBOHYDRATE POLYMERS
Volume 201, Issue -, Pages 48-59Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2018.08.040
Keywords
Surfactant; Ionic liquids; Reduced graphene oxide; Self-assembly; Electrochemical exfoliation; Surfactant ionic liquids
Categories
Funding
- Kurita Water and Environment Foundation [16P003]
- Fundamental Research Grant Scheme (FRGS) [2015-0155-101-02]
- JSPS [23685034, 26289345, 15KK0221, 17K19002]
- RCUK [EPSRC] [EP/I018301/1]
- ANR [13-G8ME-0003, G8-2012]
- NSF [DMR-0520547]
- EU Horizon 2020 programme under the SINE2020 project [654000]
- EPSRC [EP/K020676/1] Funding Source: UKRI
Ask authors/readers for more resources
A facile electrochemical exfoliation method was established to efficiently prepare conducive paper containing reduced graphene oxide (RGO) with the help of single chain anionic surfactant ionic liquids (SAILs). The surfactant ionic liquids are synthesized from conventional organic surfactant anions and a 1-butyl-3-methyl-imidazolium cation. For the first time the combination of SAILs and cellulose was used to directly exfoliate graphite. The ionic liquid 1-butyl-3-methyl-imidazolium dodecylbenzenesulfonate (BMIM-DBS) was shown to have notable affinity for graphene, demonstrating improved electrical properties of the conducive cellulose paper. The presence of BMIM DBS in the system promotes five orders of magnitude enhancement of the paper electrical conductivity (2.71 x 10(-5) S cm(-1)) compared to the naive cellulose (1.97 x 10(-10) S cm(-1)). A thorough investigation using electron microscopy and Raman spectroscopy highlights the presence of uniform graphene incorporated inside the matrices. Studies into aqueous aggregation behavior using small-angle neutron scattering (SANS) point to the ability of this compound to act as a bridge between graphene and cellulose, and is responsible for the enhanced exfoliation level and stabilization of the resulting dispersion. The simple and feasible process for producing conducive paper described here is attractive for the possibility of scaling-up this technique for mass production of conducive composites containing graphene or other layered materials.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available