国家/地区 欧洲专利局（EPO）（4）
IPC部 B（4）
IPC大类 B01（4）
IPC小类 B01J（4）
IPC B01J019/24（4）
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（2）
申请年 2014（2） 
专利权人 HANWHA CHEM .（2）

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

Material useful to provide refrigeration, and for photovoltaic or thermionic power generation, comprises carbon allotrope (graphene or graphite) doped with boron nitride, and an alkali metal (potassium) intercalated within carbon allotrope.

FISHER T, FISHER T S

Non-transition metal catalyst, useful in oxidation, hydration, dehydrogenation, condensation, polymerization or auto-tandem oxidation-hydration-condensation reactions, comprises catalytically-active graphene oxide or graphite oxide.

BIELAWSKI C W, DREYER D R, JIA H, BIELAWSKI C, DREYER D