国家/地区 美国（6） 中国（5） 欧洲专利局（EPO）（5） 日本（5） 世界知识产权组织（5） 韩国（3）
IPC部 C（6）
IPC大类 C01（6） H01（6） B82（3）
IPC小类 C01B（6）
IPC C01B032/23（6）
发明人
公开年 2015（6）
申请年 2014（4） 
专利权人

Formation of graphite oxide for graphene preparation involves providing intercalated flakes of graphite, adding nitric acid to graphite flakes, adding chlorate salt while stirring, increasing temperature, washing, and separating product.

PLOMB B, GEINOZ J, MARTI R, VANOLI E, BOURGEOIS J, MARTY R, PROM B, REYNOLDS J

Preparing anthracite based graphene oxide comprises e.g. preparing ultra-clean anthracite powder, adding dispersant, carrying out ultrasonication to prepare dispersion liquid, and preparing graphene oxide colloid solution.

ZHANG L, ZHANG M

Conductive carbon used in material for forming electrodes, comprises hydrophilic solid-phase component having preset microcrystal size in graphene surface direction calculated from Raman spectrum.

ISHIMOTO S, KUBOTA S, MINATO Y, NAOI K, NAOI W, TAMAMITSU K

Synthesizing reduced graphene oxide on a substrate from seedlac, comprises preparing the seedlac solution in alcohol having specified carbons, dipping the substrate into the solution, and heating the substrate which is a metallic sheet.

SHYAM K C, MANISH K B, TAPAN K R, SUMITESH D, RANJAN K S, YASHABANTA N S, ASHIT K P, VIKAS C S, CHOUDHARY S K, BHADU M K, ROUT T K, DAS S, SAHU R K, SINGHBABU Y N, PRAMANICK A K, SRIVASTAVA V C

Preparation of large-piece graphene for e.g. electronic material involves performing layer inserting treatment on graphite powder under mild condition and presence of acid and oxidizing agent, and washing with dilute hydrochloric acid.

BAI Y, HU X, SHA X, SHA 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