国家/地区 中国（3）
IPC部 C（3）
IPC大类 C01（3）
IPC小类 C01B（3）
IPC C01B031/04（3）
发明人 ZHANG H（3）
公开年 2013（2）
申请年 2013（2） 
专利权人 UNIV HEILONGJIANG SCI TECHNOLOGY（3）

Production of multilayer graphene for nanomaterial, involves adding secondarily oxidized expanded graphite to supersaturated solution of sodium acetate, and ultrasonically-dispersing preliminarily dissociated graphite using ethanol.

LIU L, MENG F, ZHANG H, ZHAO G

Forming graphene oxide sheet for e.g. energy sector involves mixing natural crystalline flake graphite and concentrated nitric acid or mixed acid of nitric and sulfuric acid/adding hydrogen peroxide/conducting ultrasonic assistant oxidation.

HUANG Y, ZHANG H, LIU L, DING H, DING S, XING S

Preparation of graphene involves preparing graphite oxide acid solution by performing ultrasonic processing of expanded graphite, heating, reducing by microwave digestion using high temperature pressurization, washing, and drying.

ZHANG H, KANG W, LI Z, LIU L, DING H, DING S, XING S, AN M, LIU C, WEI L