Journal
CHEMICAL ENGINEERING JOURNAL
Volume 262, Issue -, Pages 658-664Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2014.10.022
Keywords
Graphite exfoliation; Pristine graphene; Transparent conducting film; Electrochemistry
Categories
Funding
- National Natural Science Foundation of China [20773066]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- National High Technology Research and Development Program of China (863 Program) [2012AA06A304]
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High-quality concentrated pristine graphene (PG) dispersions were conveniently prepared by an organic salt-assisted exfoliation method. Applications of this PG product can be directly done with these stable surfactant-free graphene dispersions. Transparent graphene thin films made by drop-casting PG dispersions on glass slide and dried at 70 degrees C in air and further treated by thermal annealing in Nitrogen atmosphere exhibited very low sheet resistance (124 Omega/square) and high conductivity up to ca. 50,000 S/m. The potential utility of this massively and easily obtained PG was further demonstrated by using them as excellent conductive substrate supporting palladium nanoparticles for electro-oxidation of alcohol in NaOH solution. (C) 2014 Elsevier B.V. All rights reserved.
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