国家/地区 台湾（4）
IPC部 B（4）
IPC大类 B01（4）
IPC小类 B01J（4） C01B（4） H01B（3）
IPC B01J003/00（4）
发明人
公开年 2015（2）
申请年 2014（2） 
专利权人

Preparation of graphene sheet involves using supercritical carbon dioxide to carry urea aqueous solution to intercalate graphite oxide or expandable graphite, and then stirring nitric acid at room temperature to form urea nitrate nitrates.

CHUNG M, KUAN H, HSU H

Graphite-type carbon raw material used as graphene precursor, has rhombohedral system graphite layer and hexagonal system graphite layer in ratio more than preset value, as measured using peak intensities specific planes of layers.

HASEGAWA S, KAMIYA N, SHOJI H, NAGISA K, HASEGAWA SHOJI, KAMIYA NAGISA, SHEN Y

Graphene comprises oxygen atom content in predetermined range, and has carbon/oxygen weight ratio of predetermined range.

LEE J S, DO S H, JEON S Y, KONG J H, DO SEUNG H, LEE J, DO S, JEON S, KONG J

Method for creating graphene for use in e.g. material science, involves dispersing graphene oxide into water to form dispersion, and adding solvent to dispersion to form solution, where temperature of solution is controlled to form graphene.

GILJE S S, GILJE, JWILYE E S