METHOD FOR OBTAINING GRAPHENE OXIDE

PROBLEM TO BE SOLVED: To provide a method for obtaining graphene oxide with a high functionalization level and with a high monolayer content (>99.8%), which has a short production time, a high total production yield, and environmental friendliness, and which is scaled up easily.SOLUTION: A method...

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Hauptverfasser:	M AMAIA ZURUTUZA ELORZA, BEATRIZ ALONSO RODRIGUEZ
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for obtaining graphene oxide with a high functionalization level and with a high monolayer content (>99.8%), which has a short production time, a high total production yield, and environmental friendliness, and which is scaled up easily.SOLUTION: A method for obtaining graphene oxide includes a step of a) adding an acid and a salt to graphite for obtaining a graphite oxide, and a step of b) exfoliating the graphite oxide by mixing the graphite oxide, in which the steps a) and b) are carried out simultaneously in a high shear mixer. Preferably, the acid is sulfuric acid and the salt is potassium permanganate and no other components are added.SELECTED DRAWING: None 【課題】高い官能基化レベルの酸化グラフェンを、高い単層含有量（＞９９．８％）、短い生成時間、高い全生成量、環境保全性、容易に拡張可能に取得する方法を提供する。【解決手段】ａ）グラファイトに酸及び塩を添加して酸化グラファイトを取得するステップ、ｂ）前記酸化グラファイトを混合することによって該酸化グラファイトを剥離するステップを含み、前記ステップａ）及びｂ）は高せん断混合機内で同時に行われる酸化グラフェンを取得する方法。前記酸が硫酸であり、前記塩が過マンガン酸カリウムであり、他の成分を添加しないことが好ましい、酸化グラフィンを取得する方法。【選択図】なし