期刊
BULLETIN OF MATERIALS SCIENCE
卷 34, 期 1, 页码 25-28出版社
INDIAN ACAD SCIENCES
DOI: 10.1007/s12034-011-0048-x
关键词
Graphite oxide; graphene oxide; magnetic stirring; atomic force microscopy
资金
- Program for New Century Excellent Talents in University [NCET-07-0626]
- Shanghai Science and Technology Committee [08160706900, 09JC1414400]
- National High Technology Research and Development Program of China [2009AA05Z419]
Aqueous colloids of graphene oxide nanosheets were produced from exfoliation of graphite oxide using a magnetic stirrer and heat treatment in the absence of ultrasonication. Laser particle measurements showed that the particle size distribution of graphite oxide dispersed in de-ionized water was significantly influenced by treatment time indicating an increasing exfoliation level of graphite oxide. Atomic force microscopy (AFM) confirmed that single-layer graphene oxide nanosheets with a thickness of similar to 1 nm were obtained after 72 h of magnetic stirring and heat treatment. These findings provide a new methodology for preparation of single-layer graphene oxide nanosheet colloids.
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