Simultaneous surface functionalization and reduction of graphene oxide (GO) was realized by simple refluxing of GO with octadecylamine (ODA) without the use of any reducing agents. The presence of the long octadecyl chain made the hydrophilic GO hydrophobic, evidenced by the selective dispersion of
Graphene oxide as dyestuffs for the creation of electrically conductive fabrics
โ Scribed by Bunshi Fugetsu; Eiichi Sano; Hongwen Yu; Kenichiro Mori; Tomo Tanaka
- Book ID
- 104009187
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 971 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0008-6223
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โฆ Synopsis
Graphene oxide (GO) was immobilized on the surfaces of acrylic yarns through a conventional dyeing approach. The GO dyed yarns and/or the fabric were immersed in an aqueous sodium hydrosulfite solution at around 363 K for 30 min, which converted the GO into graphene. The graphene created a graphitic-coloured and electrically conductive thin layer over each yarn in the fabric. Data on the electrical conductance of the yarns versus temperature (30-300 K) fit well with the so-called fluctuation-induced tunneling model, which suggests that the graphene layer belongs to a continuously interconnected network. Values of the electrical resistivity ranged from 10 2 to 10 10 Ohm/cm, as verified by the content of graphene in the conductive layer.
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