The selective permeation of organic solvents and water through graphene oxide (GO) membranes has been demonstrated. Water was found to permeate through GO membranes faster than various alcohols. The permeation rates of ethanol, 1-propanol and 2-propanol (IPA) are about 80 times lower than that ...
Liquid phase exfoliation (LPE) has emerged as a promising method for the industrial-scale production of graphene. However, one of its critical steps, namely sonication, has faced challenges due to high power consumption and low efficiency, leading to limited applicability in industrial settings. This...
the nanofluids prepared by graphene oxide sheets and base fluids of the water, liquid paraffin, and propyl glycol. At a concentration of 5%, the enhancements of thermal conductivity were 30.2%, 62.3% and 76.8% as the base liquids were the water, propyl glycol and liquid paraffin, respectively...
Graphene fibre is a one-dimensional macroscopic ordered assembly formed by graphene oxide (GO) liquid crystals under unidirectional shear-flow, following by chemical and thermal reduction4,11,14,16. 2D GO sheets flowing in a tubular channel become curved and distorted as a result of the mismatchin...
Thus, in the medium term, the most promising route is the exfoliation of graphite in the liquid phase to give graphene-like materials. The most common technique has been the oxidation and subsequent exfoliation of graphite to give graphene oxide.6-10 However, this technique suffers from one ...
Fig. 5: Synthesis of graphene oxide. Full size image Another method using liquid-phase exfoliation of graphite in surfactant solutions or water produced 40% of 2D graphene sheets with thickness <5 layers and ~3% single layers of graphene48. Chemical methods for the synthesis of graphene are mor...
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Due to its structure, graphene oxide can be adsorbed at the air-water interface of the aqueous solution by diffusion, Gibbs monolayers, or by spreading on a clean water subphase resulting in a Langmuir film. This review is intended to provide information on the importance of controlling the ...
Laser ablation in liquidgraphene oxide nanoribbonsUV-visible spectrumRaman spectrumThe interest toward two-dimensional (2D) materials is gradually increasing because of their structure at nanoscale and great importance for electronic and optical applications. In this study, we show the synthesis of ...
The sensitive response of the nematic graphene oxide (GO) phase to external stimuli makes this phase attractive for extending the applicability of GO and reduced GO to solution processes and electro-optic devices. However, contrary to expectations, the alignment of nematic GO has been difficult to...