国家/地区 中国（2）
IPC部 C（2）
IPC大类 C01（2） H01（2）
IPC小类 C01B（2）
IPC H01G011/32（2）
发明人 FANG C（2）
公开年
申请年
专利权人

Preparing graphene powder useful for preparing super capacitor electrode material, involves soaking compound B with potassium hydroxide, carbonizing under argon atmosphere, washing with acid, filtering, de-ionized water washing to neutral, and drying.

FANG C, HONG J, SUN D, LIN J, HUANG W

Nitrogen-containing porous carbon material used as electrode material for supercapacitor, is prepared by dispersing recovered tobacco filter and urea as nitrogen source in ethanol, then soaking in graphene oxide and carbonizing.

CHENG Y, ZHANG Q, FANG C