国家/地区 中国（5）
IPC部 B（5）
IPC大类 B01（5） C01（5） H01（4）
B82（3）
IPC小类 B01J（5）
IPC C01B031/02（5）
发明人 DO S（2） DO S H（2） DO SEUNG H（2）
JEON S（2） JEON S Y（2） KONG J（2）
KONG J H（2） LEE J（2） LEE J S（2）
公开年 2015（5）
申请年 2014（5） 
专利权人 HANWHA CHEM .（2）

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

Purifying graphene nanoribbons, involves contacting composition comprising graphene nanoribbons and contaminants with liquid medium comprising dispersant, and dispersing nanoribbons in liquid medium and subjecting the dispersion.

HINTERMANN T, SCHWAB M G, CHA K C, WEITZ T, SCHAEFER A, MUELLER I B, WEITZE T, SCHWAB M G S, CHA K C P

Modification of graphene involves obtaining graphene having desired crystal size by repeating graphene modification process several times with subcritical or supercritical carbon dioxide.

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

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

System for manufacturing graphene nanoribbon for manufacturing e.g. transparent touch screens, has material receiving unit being coupled to tank for winding graphene nanoribbon, where connections are provided through pipelines.

SUN C, CHIU C, SUN C L, CHIU C Y, SUN J, QIU Z