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 CHEN C（3）
公开年 2012（2）
申请年 2011（3）
专利权人 UNIV BEIJING.（2） UNIV BEIJING.（2）

Graphene preparation comprises dispersing graphite oxide in water under ultrasonic oscillation to obtain colloid, and taking zinc as reducing agent to reduce oxidized graphite to obtain graphene.

CHEN C, YANG S, LIN H, CHEN T, YANG X, HUANG D

Preparation of graphene used in, e.g. electronic device, involves treating graphite oxide with volatile acid aqueous solution to obtain acidized graphite oxide, and heating at normal pressure to expand the acidized graphite oxide.

CHEN C, LU D, ZHAI W, ZHENG W

Graphene preparation comprises reacting graphene oxide with borohydride compound and compound containing variable valence metal ion in volatile liquid environment to obtain graphene.

CHEN T, CHEN C, WANG H, YANG X