国家/地区 中国（3）
IPC部 B（3） C（2）
IPC大类 B01（2） C01（2）
IPC小类 B01J（2） C01B（2）
IPC C01B032/184（2）
发明人 CHEN G（3）
公开年 2020（3）
申请年 2020（2） 
专利权人 CHEN G（3）

Nickel-doped cobalt selenide-graphitic carbon nitride heterojunction photocatalytic hydrogen production composite catalyst includes graphitic carbon nitride modified graphene, cobalt nitrate, sodium selenite, and hydrazine hydrate.

CHEN G

Zinc ferrite-titanium dioxide-reduced graphene oxide heterojunction photocatalytic degradation material comprises nano zinxc ferrite hollow microsphere, aminated reduced graphene oxide, butyl titanate, and erbium(III) acetate.

CHEN G

Continuous multi-stage grinding and dispersing machine for preparing graphene, comprises casing, first-stage grinding mechanism, second-stage grinding mechanism, feeding mechanism, where first-level grinding mechanism is installed at casing.

CHEN G, YAO W