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Exfoliation of Grap...
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Parvez, KhaledMax Planck Institute Polymer Research, Germany
(author)
Exfoliation of Graphite into Graphene in Aqueous Solutions of Inorganic Salts
- Article/chapterEnglish2014
Publisher, publication year, extent ...
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2014-04-09
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American Chemical Society,2014
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:liu-106960
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-106960URI
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https://doi.org/10.1021/ja5017156DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Mass production of high-quality graphene sheets is essential for their practical application in electronics, optoelectronics, composite materials, and energy-storage devices. Here we report a prompt electrochemical exfoliation of graphene sheets into aqueous solutions of different inorganic salts ((NH4)(2)SO4, Na2SO4, K2SO4, etc.). Exfoliation in these electrolytes leads to graphene with a high yield (greater than85%, less than= 3 layers), large lateral size (up to 44 mu m), low oxidation degree (a C/O ratio of 17.2), and a remarkable hole mobility of 310 cm(2) V-1 s(-1). Further, highly conductive graphene films (11 Omega sq(-1)) are readily fabricated on an A4-size paper by applying brush painting of a concentrated graphene ink (10 mg mL(-1), in N,N-dimethylformamide). All-solid-state flexible supercapacitors manufactured on the basis of such graphene films deliver a high area capacitance of 11.3 mF cm(-2) and an excellent rate capability of 5000 mV s(-1). The described electrochemical exfoliation shows great promise for the industrial-scale synthesis of high-quality graphene for numerous advanced applications.
Subject headings and genre
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TECHNOLOGY
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TEKNIKVETENSKAP
Added entries (persons, corporate bodies, meetings, titles ...)
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Wu, Zhong-ShuaiMax Planck Institute Polymer Research, Germany
(author)
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Li, RongjinMax Planck Institute Polymer Research, Germany
(author)
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Liu, XianjieLinköpings universitet,Ytors Fysik och Kemi,Tekniska högskolan(Swepub:liu)xiali21
(author)
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Graf, RobertMax Planck Institute Polymer Research, Germany
(author)
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Feng, XinliangMax Planck Institute Polymer Research, Germany Shanghai Jiao Tong University, Peoples R China
(author)
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Muellen, KlausMax Planck Institute Polymer Research, Germany
(author)
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Max Planck Institute Polymer Research, GermanyYtors Fysik och Kemi
(creator_code:org_t)
Related titles
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In:Journal of the American Chemical Society: American Chemical Society136:16, s. 6083-60910002-78631520-5126
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