国家/地区 中国（5） 美国（5） 韩国（4） 世界知识产权组织（3）
IPC部 C（9） D（9） B（2）
G（2） H（2）
IPC大类 C01（9）
IPC小类 C01B（9） D01F（9） D01D（5）
G01N（2）
IPC D01F009/12（9）
发明人
公开年 2021（7） 2020（2）
申请年 2020（9）
专利权人 KOREA ADVANC.（2）

Producing a carbon and sulfur complex having hierarchical structure for lithium-sulfur battery electrode comprises reducing carbon dioxide-containing gas in presence of reducing agent e.g. magnesium, mixing sulfur and heat-treating.

LEE J, PARKJAEHYUN, KIM H S

Dry graphene powder composition used in graphene ink used in two- or three-dimensional printing comprises pristine graphene flakes non-covalently functionalized with polymeric amphiphilic molecules.

TRAN T S, ROY CHOUDHURY N, DUTTA N, ROY C N, AWARD T, ROICHOUDURINAMITA, DUTANABA, DUTA N

Preparation of large-area nano-carbon material involves dispersing carboxylated water-soluble nanocarbon in water, adjusting pH, immersing metal substrate in obtained dispersion liquid and performing self-assembly growth.

CAO X, GU L, WU Y

Two-dimensional nanomaterial fiber useful in electronic devices comprises two-dimensional nanomaterials oriented in longitudinal direction, and plate-shaped fibrous cross section formed by layer-to-layer stacking of nanomaterials.

KIM S, JUNG H J, KIM S O

Producing reduced graphene oxide from coal by thermally processing coal, oxidizing thermally processed coal to form coal oxide, and forming reduced graphene oxide comprising impurity atoms from coal oxide.

ATKINS C A, LINDEMANN G W, TARGETT M

New graphene oxide used for preparing conductive graphene fibers contains oxygen-containing functional group e.g. epoxy or hydroxy on surface, but no surface oxygen-containing functional group e.g. lactol or carboxy.

HAN J T, KIM J H, CHO J Y, LEE G W, PARK J H, SEO S H, JEONG S Y, JEONG H J, HAN J, KIM J, LEE G, CHO J, JEONG S, SEO S, JUNG S Y, CHUNG H J

Nanofibers comprise reduced graphene oxide sheets or graphene oxide sheets overlapped back and forth along fiber axis, and size of reduced graphene oxide sheets or graphene oxide sheets curled along circumferential direction.

GAO C, WANG J

Producing reduced graphene oxide fiber, involves preparing graphene oxide solution from natural flake graphite, preparing reducing agent solution by ascorbic acid, heating, injecting slurry into solution and carrying out reduction reaction.

CAI J, ZHAO L, XIAO W, LIANG J

Preparing graphene nanofiber membrane comprises dispersing graphene oxide in water to prepare graphene oxide spinning solution, washing graphene oxide nanofibers to neutrality and vacuum filtering graphene oxide nanofiber dispersion.

LI G, TANG Z, CHU X