An in situ oxidation route to fabricate graphene nanoplate-metal oxide composites

Journal Article · Wed Jun 15 00:00:00 EDT 2011 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2011.03.054· OSTI ID:21580107

Sheng, Chen ^[1]

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1. Key Laboratory of Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Ministry of Education, Nanjing 210094 (China)

We report our studies on an improved soft chemical route to directly fabricate graphene nanoplate-metal oxide (Ag{sub 2}O, Co{sub 3}O{sub 4}, Cu{sub 2}O and ZnO) composites from the in situ oxidation of graphene nanoplates. By virtue of H{sup +} from hydrolysis of the metal nitrate aqueous solution and NO{sub 3}{sup -}, only a small amount of functional groups were introduced, acting as anchor sites and consequently forming the graphene nanoplate-metal oxide composites. The main advantages of this approach are that it does not require cumbersome oxidation of graphite in advance and no need to reduce the composites due to the lower oxidation degree. The microstructures of as-obtained metal oxides on graphene nanoplates can be dramatically controlled by changing the reaction parameters, opening up the possibility for processing the optical and electrochemical properties of the graphene-based nanocomposites. - graphical abstract: An improved soft chemical route to directly fabricate graphene nanoplate-metal oxide composites is reported from the in situ oxidation of graphene nanoplates. Highlights: > An improved soft chemical route to directly fabricate graphene nanoplate-metal oxide composites. > The microstructures can be controlled by changing the reaction parameters. > It does not require oxidation of graphite in advance and no need to reduce the composites due to the lower oxidation degree.

• OSTI ID: 21580107
• Journal Information: Journal of Solid State Chemistry, Vol. 184, Issue 6; Other Information: DOI: 10.1016/j.jssc.2011.03.054; PII: S0022-4596(11)00165-4; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AQUEOUS SOLUTIONS
COBALT OXIDES
COMPOSITE MATERIALS
COPPER OXIDES
GRAPHITE
HYDROLYSIS
METALS
MICROSTRUCTURE
NANOSTRUCTURES
NITRATES
OXIDATION
SILVER OXIDES
VALENCE
ZINC OXIDES
CARBON
CHALCOGENIDES
CHEMICAL REACTIONS
COBALT COMPOUNDS
COPPER COMPOUNDS
DECOMPOSITION
DISPERSIONS
ELEMENTS
HOMOGENEOUS MIXTURES
LYSIS
MATERIALS
MINERALS
MIXTURES
NITROGEN COMPOUNDS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
SILVER COMPOUNDS
SOLUTIONS
SOLVOLYSIS
TRANSITION ELEMENT COMPOUNDS
ZINC COMPOUNDS