ID | 57262 |
フルテキストURL | |
著者 |
Hashimoto, Hideki
Department of Applied Chemistry, School of Advanced Engineering, Kogakuin University
Kaken ID
publons
Muramatsu, Yusuke
Department of Applied Chemistry, School of Advanced Engineering, Kogakuin University
Nishina, Yuta
Research Core for Interdisciplinary Sciences, Okayama University
ORCID
Kaken ID
publons
researchmap
Asoh, Hidetaka
Department of Applied Chemistry, School of Advanced Engineering, Kogakuin University
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抄録 | The electrochemical exfoliation of graphite has attracted considerable attention as a method for large-scale, rapid production of graphene and graphene oxide (GO). As exfoliation typically requires direct electrical contact, and is limited by the shape and/or size of the starting graphite, treatment of small graphite particles and powders, the typical form available commercially, is extremely difficult. In this study, GO nanosheets were successfully prepared from small graphite particles and powders by a bipolar electrochemical process. Graphite samples were placed between two platinum feeder electrodes, and a constant current was applied between the feeder electrodes using dilute sulfuric acid as the electrolyte. Optical microscopy, atomic force microscopy, X-ray diffractometry, Raman spectroscopy, and X-ray photoelectron spectroscopy were employed to examine the samples obtained after electrolysis. The results obtained from these analyses confirmed that anodic electrochemical exfoliation occurs in the graphite samples, and the exfoliated samples are basically highly crystalline GO nanosheets with a low degree of oxidation (C/O = 3.6–5.3). This simple electrochemical method is extremely useful for preparing large amounts of graphene and GO from small particles of graphite.
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キーワード | Graphite
Graphene
Graphene oxide
Electrochemical exfoliation
Anode
Bipolar electrochemistry
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発行日 | 2019-07-31
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出版物タイトル |
Electrochemistry Communications
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巻 | 104巻
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出版者 | Elsevier
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開始ページ | 106475
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ISSN | 13882481
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NCID | AA11324699
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資料タイプ |
学術雑誌論文
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言語 |
英語
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OAI-PMH Set |
岡山大学
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著作権者 | © 2019 The Authors. Published by Elsevier B.V.
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論文のバージョン | publisher
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DOI | |
Web of Science KeyUT | |
関連URL | isVersionOf https://doi.org/10.1016/j.elecom.2019.06.001
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ライセンス | http://creativecommons.org/licenses/by-nc-nd/4.0/
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Citation | Hideki Hashimoto, Yusuke Muramatsu, Yuta Nishina, Hidetaka Asoh, Bipolar anodic electrochemical exfoliation of graphite powders, Electrochemistry Communications, Volume 104, 2019, 106475, ISSN 1388-2481, https://doi.org/10.1016/j.elecom.2019.06.001.
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助成機関名 |
日本学術振興会
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助成番号 | 17K18994
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オープンアクセス(出版社) |
OA
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オープンアーカイブ(出版社) |
非OpenArchive
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