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Chemical functionalization of graphene sheets by solvothermal reduction of a graphene oxide suspension in N-methyl-2-pyrrolidone
Abstract
We report a simple and effective method for reducing and functionalizing graphene oxide into chemically converted graphene by solvothermal reduction of a graphene oxide suspension in N-methyl-2-pyrrolidone (NMP). Graphene oxide sheets were functionalized by free radicals generated during heating of NMP in the presence of air. The degree of functionalization was easily controlled by manipulating the reduction time. High functionalized solvothermally reduced graphene oxide (STRG) shows superior dispersibility in various organic solvents, while slightly functionalized STRG shows excellent electrical conductivity. The superior dispersibility of highly functionalized STRG in organic solvents was attributed to the steric effect of functionalized groups on the surface of STRG sheets. Free-standing STRG paper that was reduced for 1 h exhibited electrical conductivity as high as 21600 S m−1, while the dispersibility of STRG that was reduced for 5 h was as high as 1.4 mg mL−1.
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Cites
Graphene-based composite materials
Stankovich, S., Dikin, D. A., Dommett, G. H. B., Kohlhaas, K. M., Zimney, E. J., Stach, E. A., Piner, R. D., Nguyen, S. T., & Ruoff, R. S. (2006) · Nature · doi:10.1038/nature04969 · Cited by 12,922
Self-Assembled Graphene Hydrogel via a One-Step Hydrothermal Process
Xu, Y., Sheng, K., Li, C., & Shi, G. (2010) · ACS Nano · doi:10.1021/nn101187z · Cited by 3,251
Cited by
Wang, Y., Shi, Z., & Yin, J. (2011) · ACS Applied Materials & Interfaces · doi:10.1021/am1012613 · Cited by 608
How Do the Electrical Properties of Graphene Change with its Functionalization?
Sreeprasad, T. S., & Berry, V. (2013) · Small · doi:10.1002/smll.201202196 · Cited by 386
Xu, S., Lei, Z., & Wu, P. (2015) · Journal of Materials Chemistry A · doi:10.1039/c5ta02637g · Cited by 153
Xie, Q., Wang, Z., Lin, L., Shu, Y., Zhang, J., Li, C., Shen, Y., & Uyama, H. (2021) · Small · doi:10.1002/smll.202102160 · Cited by 42
Metadata
- Authors
- Pham, V. H., Cuong, T. V., Hur, S. H., Oh, E., Kim, E. J., Shin, E. W., & Chung, J. S.
- Venue
- J. Mater. Chem.
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2011
- Volume
- 21
- Issue
- 10
- Pages
- 3371-3377
- ISSN
- 0959-9428 (ISSN-L)
- 1364-5501
- OpenAlex
- W2123056314
- Cited by
- 398
- References
- 2
- FWCI
- 10.97
- Type
- journal article
- Language
- en
- Open access
- closed
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- Pham, V. H., Cuong, T. V., Hur, S. H., Oh, E., Kim, E. J., Shin, E. W., & Chung, J. S. (2011). Chemical functionalization of graphene sheets by solvothermal reduction of a graphene oxide suspension in N-methyl-2-pyrrolidone. J. Mater. Chem. https://doi.org/10.1039/c0jm02790a
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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