The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.
Organic Radical-Assisted Electrochemical Exfoliation for the Scalable Production of High-Quality Graphene
Open accessAbstract
Despite the intensive research efforts devoted to graphene fabrication over the past decade, the production of high-quality graphene on a large scale, at an affordable cost, and in a reproducible manner still represents a great challenge. Here, we report a novel method based on the controlled electrochemical exfoliation of graphite in aqueous ammonium sulfate electrolyte to produce graphene in large quantities and with outstanding quality. Because the radicals (e.g., HO(•)) generated from water electrolysis are responsible for defect formation on graphene during electrochemical exfoliation, a series of reducing agents as additives (e.g., (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO), ascorbic acid, and sodium borohydride) have been investigated to eliminate these radicals and thus control the exfoliation process. Remarkably, TEMPO-assisted exfoliation results in large graphene sheets (5-10 μm on average), which exhibit outstanding hole mobilities (∼405 cm(2) V(-1) s(-1)), very low Raman I(D)/I(G) ratios (below 0.1), and extremely high carbon to oxygen (C/O) ratios (∼25.3). Moreover, the graphene ink prepared in dimethylformamide can exhibit concentrations as high as 6 mg mL(-1), thus qualifying this material for intriguing applications such as transparent conductive films and flexible supercapacitors. In general, this robust method for electrochemical exfoliation of graphite offers great promise for the preparation of graphene that can be utilized in industrial applications to create integrated nanocomposites, conductive or mechanical additives, as well as energy storage and conversion devices.
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Cites
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Self-citation
Cited by
Interface-Assisted Synthesis of 2D Materials: Trend and Challenges
Dong, R., Zhang, T., & Feng, X. (2018) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00056 · Cited by 710
Self-citationKumar, R., Sahoo, S., Joanni, E., Singh, R. K., Tan, W. K., Kar, K. K., & Matsuda, A. (2019) · Progress in Energy and Combustion Science · doi:10.1016/j.pecs.2019.100786 · Cited by 554
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Self-citationGraphene and its electrochemistry – an update
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Synthesis of graphene materials by electrochemical exfoliation: Recent progress and future potential
Liu, F., Wang, C., Sui, X., Riaz, M. A., Xu, M., Wei, L., & Chen, Y. (2019) · Carbon Energy · doi:10.1002/cey2.14 · Cited by 407
Metadata
- Authors
- Yang, S., Brüller, S., Wu, Z.-S., Liu, Z., Parvez, K., Dong, R., Richard, F., Samorì, P., Feng, X., & Müllen, K.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-10-22
- Volume
- 137
- Issue
- 43
- Pages
- 13927-13932
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2225317424
- Cited by
- 344
- References
- 33
- FWCI
- 13.46
- Type
- journal article
- Language
- en
- Open access
- green
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- Yang, S., Brüller, S., Wu, Z.-S., Liu, Z., Parvez, K., Dong, R., Richard, F., Samorì, P., Feng, X., & Müllen, K. (2015). Organic Radical-Assisted Electrochemical Exfoliation for the Scalable Production of High-Quality Graphene. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.5b09000
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