公开(公告)号：US20220298412A1

公开(公告)日：2022-09-22

申请号：US17378869

申请日：2021-07-19

申请人： National Taiwan University of Science and Technology

发明人： Ren-Jie Weng ,  Wei-Hung Chiang

IPC分类号： C09K11/65 ,  C01B32/184 ,  C09K11/06 ,  B29B17/04

摘要： The present invention is related to a production method of a photoluminescence material by micro-plasma treatment for degrading plastic piece into multiple smaller molecular, a graphene quantum dot and the composite thereof. By using micro-plasma treatment, the production method provided by the present invention consumes very little energy and the processing steps is simple and efficiency without the existence of any organic solvent. The products obtained by the said treatment is high valued graphene quantum dot and graphene quantum dot composite with excellent photoluminescence ability for at least white, blue, green, cyan or yellow colors.

公开(公告)号：US10535444B2

公开(公告)日：2020-01-14

申请号：US14964585

申请日：2015-12-10

申请人： National Taiwan University of Science and Technology

发明人： Wei-Hung Chiang ,  Yen-Sheng Li

IPC分类号： H01B1/04 ,  B82Y30/00 ,  H01B1/08

摘要： Provided is a composite carbon material including a substrate and a graphene oxide. The graphene oxide accounts for about 5 wt % to 60 wt % based on a total weight of the substrate and the graphene oxide. A method of preparing a composite carbon material is further provided. The prepared composite carbon material has excellent hydrophilic property, flexibility, electrical conductivity and dispersity.

公开(公告)号：US09708190B2

公开(公告)日：2017-07-18

申请号：US14964742

申请日：2015-12-10

申请人： National Taiwan University of Science and Technology

发明人： Wei-Hung Chiang ,  Yen-Sheng Li ,  Jia-Liang Liao

IPC分类号： C01B31/04

CPC分类号： C01B31/0469 ,  C01B32/19 ,  C01B32/23

摘要： A method for producing a modified graphene includes the steps of intercalating or inserting a mixture of intercalating agents in a spacing between interlayers of carbon substrates or between carbon substrates, whereby the binding force between the interlayers of the carbon substrates or between the carbon substrates is weakened; and then exfoliating the pretreated carbon substrates to form the modified graphene. With the environmental friendly purpose, the method according to the present invention is useful for reducing the total amount of a strong acid. Therefore, the amount of the generated oxygen-containing functional groups attached on the modified graphene is modulated to avoid defects and maintain a yield over 80%.