国家/地区 中国（3）
IPC部 C（3）
IPC大类 H01（3） B82（2） C23（2）
IPC小类 H01J（3）
IPC H01J001/304（3） B82Y030/00（2） C23C016/30（2）
发明人 LI Z（3） SONG G（3） LI K（2）
MENG A（2）
公开年 2016（2）
申请年 2016（2） 
专利权人 UNIV QINGDAO SCI TECHNOLOGY（3）

Surface multi-fold nitrogen-doped tubular graphene used for field emission cathode material which has tubular structure and specified quantity range of pipe diameter and is formed by staggered stacking of nitrogen-doped graphene sheets.

SONG G, LI Z, ZHANG J, LUO S, MENG A

Nitrogen-doped graphene silicon dioxide coaxial nanotube field-emission cathode has amorphous silicon dioxide layer coaxially coated on outer wall of graphene tube, to form graphene-based nanocomposite structure.

SONG G, LI Z, LI K

Preparation of nitrogen-doped graphene silica coaxial nanotube used as field emission cathode materials involves reacting solid melamine and mixed powder of silicon and silica with graphite substrate impregnated catalyst.

LI K, LI Z, MENG A, ZHANG M, SONG G