JP2015038017A5 - - Google Patents

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JP2015038017A5
JP2015038017A5 JP2014145632A JP2014145632A JP2015038017A5 JP 2015038017 A5 JP2015038017 A5 JP 2015038017A5 JP 2014145632 A JP2014145632 A JP 2014145632A JP 2014145632 A JP2014145632 A JP 2014145632A JP 2015038017 A5 JP2015038017 A5 JP 2015038017A5
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graphite
metal salt
raw material
producing
exfoliated
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JP2014145632A
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JP6493903B2 (en
JP2015038017A (en
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黒鉛または膨張黒鉛からなる原料黒鉛を用意する工程と、アルカリ金属塩及びアルカリ土類金属塩のうちの少なくとも一方を電解質とする電解液に、原料黒鉛を浸漬し、該原料黒鉛を作用極とし、対照極との間に５〜５００ｍＡの範囲内の直流電圧を印加し、電気化学処理を行い、グラフェン間の隙間が拡げられた二次黒鉛を得る工程とを備える、二次黒鉛の製造方法。   A step of preparing raw material graphite composed of graphite or expanded graphite, and dipping the raw material graphite in an electrolyte containing at least one of an alkali metal salt and an alkaline earth metal salt as an electrolyte, and using the raw material graphite as a working electrode; A method for producing secondary graphite, comprising: applying a DC voltage within a range of 5 to 500 mA between the control electrode and performing electrochemical treatment to obtain secondary graphite in which a gap between graphenes is widened. 前記アルカリ金属塩が、塩化ナトリウム、塩化カリウム、水酸化カリウム及び水酸化ナトリウムからなる群から選択された少なくとも１種である、請求項１に記載の二次黒鉛の製造方法。   The method for producing secondary graphite according to claim 1, wherein the alkali metal salt is at least one selected from the group consisting of sodium chloride, potassium chloride, potassium hydroxide, and sodium hydroxide. 前記アルカリ土類金属塩が、水酸化マグネシウム、水酸化カルシウム、塩化カルシウム及び塩化マグネシウムからなる群から選択された少なくとも１種である、請求項１又は２に記載の二次黒鉛の製造方法。   The method for producing secondary graphite according to claim 1 or 2, wherein the alkaline earth metal salt is at least one selected from the group consisting of magnesium hydroxide, calcium hydroxide, calcium chloride, and magnesium chloride. 請求項１〜３のいずれか１項に記載の二次黒鉛の製造方法で得られた二次黒鉛のグラフェン間の隙間を剥離する剥離処理を行い、薄片化黒鉛を得る、薄片化黒鉛の製造方法。   Manufacture of exfoliated graphite which performs exfoliation processing which exfoliates the gap between graphene of secondary graphite obtained by the manufacturing method of secondary graphite according to any one of claims 1 to 3 to obtain exfoliated graphite Method. 前記剥離処理が、超音波処理又は湿潤粉砕によって行われる、請求項４に記載の薄片化黒鉛の製造方法。   The method for producing exfoliated graphite according to claim 4, wherein the peeling treatment is performed by ultrasonic treatment or wet grinding. 最大距離を隔てて対向している両端間の最短距離をＡとし、該両端間の道のりをＢとしたとき、Ａ／Ｂで表される屈曲度が０．５以上である、薄片化黒鉛。 The shortest distance between two ends that are opposed to each other at a maximum distance is A, when the road between the both ends is B, the bending degree expressed by A / B is 0.5 or more, exfoliated graphite .
JP2014145632A 2013-07-18 2014-07-16 Method for producing secondary graphite, method for producing exfoliated graphite, secondary graphite and exfoliated graphite Active JP6493903B2 (en)

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JP2013149538 2013-07-18
JP2013149538 2013-07-18
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JP2015038017A JP2015038017A (en) 2015-02-26
JP2015038017A5 true JP2015038017A5 (en) 2017-08-03
JP6493903B2 JP6493903B2 (en) 2019-04-03

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Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
KR101785374B1 (en) * 2015-07-31 2017-10-17 가천대학교 산학협력단 Method of manufacturing non-oxidized graphene using shear flow exfoliation and electrochemical pretreatment and apparatus for manufacturing the same
US10381646B2 (en) 2015-12-24 2019-08-13 Semiconductor Energy Laboratory Co., Ltd. Secondary battery, graphene oxide, and manufacturing method thereof
KR102068258B1 (en) * 2016-03-30 2020-01-20 주식회사 엘지화학 Method for preparation of graphene
CN106006693B (en) * 2016-05-17 2017-07-07 西北工业大学 A kind of high stability calcium hydroxide/graphene nanocomposite material and preparation method
KR101996811B1 (en) * 2017-05-25 2019-07-08 한국과학기술원 Method of fabricating high-quality graphene flakes using electrochemical exfoliation process and dispersion solution of graphene flakes
CN108117065B (en) * 2017-12-14 2020-04-17 北京化工大学 Method for preparing graphene by adopting alternate current stripping
CN108821278A (en) * 2018-08-21 2018-11-16 大同新成新材料股份有限公司 A method of expanded graphite is prepared using graphene composite material
CN110282616A (en) * 2019-06-29 2019-09-27 天津大学 The method that composite shuttering prepares three-dimensional grapheme multistage network material

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JP2004181383A (en) * 2002-12-04 2004-07-02 Nippon Telegr & Teleph Corp <Ntt> Carbon material for storing hydrogen
JP4804272B2 (en) * 2006-08-26 2011-11-02 正義 梅野 Method for producing single crystal graphite film
US8524067B2 (en) * 2007-07-27 2013-09-03 Nanotek Instruments, Inc. Electrochemical method of producing nano-scaled graphene platelets
KR101344493B1 (en) * 2007-12-17 2013-12-24 삼성전자주식회사 Single crystalline graphene sheet and process for preparing the same
JP5632448B2 (en) * 2010-02-19 2014-11-26 株式会社インキュベーション・アライアンス Carbon material and manufacturing method thereof
JP2012020915A (en) * 2010-07-16 2012-02-02 Masayoshi Umeno Method for forming transparent conductive film, and transparent conductive film
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JP2013112542A (en) * 2011-11-25 2013-06-10 Sekisui Chem Co Ltd Intercalated graphite and method for producing flaked graphite
US8734683B2 (en) * 2011-11-29 2014-05-27 Xerox Corporation Graphene nano-sheets and methods for making the same

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