国家/地区 中国（2）
IPC部 B（2）
IPC大类 C01（2）
IPC小类 C01B（2）
IPC
发明人
公开年
申请年 2017（2）
专利权人 UNIV KUNMING SCI TECHNOLOGY（2）

Preparing nitrogen-doped graphene carbon material useful as e.g. cathode catalyst of a hydrogen-oxygen fuel cell, comprises e.g. adding transition metal salt into halogen element strong oxidizing acid, stirring and ultrasonically processing.

YANG X, WEI Q, TAN F, LI W, ZHANG Y, SUN P, MIN C

Ball milling device for providing pure shearing and peeling graphene, has rotating cylinder which is provided as polish tube and grooves which are installed above inner wall to connect with main shaft of ball mill to transmit torque.

ZHAO M, WEI J