公开(公告)号：US20230357016A1

公开(公告)日：2023-11-09

申请号：US18146378

申请日：2022-12-25

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Huilong LIU ,  Yun CHEN ,  Xin CHEN ,  Yixin ZHENG ,  Kyoung-Sik MOON ,  Dachuang SHI ,  Jian GAO ,  Ching-Ping WONG

IPC: C01B32/184 ,  C01B32/196

CPC classification number: C01B32/184 ,  C01B32/196 ,  C01P2004/04 ,  C01P2002/82 ,  C01P2002/85

Abstract: A method for integrally forming a graphene film (GF) of a high specific surface area (SSA) by ultrafast ultraviolet (UV) laser processing, includes: selecting a carbon precursor material, where the carbon precursor material is one selected from the group consisting of a biomass/hydrogel composite and a heavy hydrocarbon compound; adding an activator solution to an inside of the carbon precursor material to obtain a composite with an activator uniformly loaded, and spreading the composite on a flexible substrate to form a carbon precursor material layer; heating and drying the carbon precursor material layer; in-situ processing with an ultrafast UV laser to obtain an activated GF of a high SSA; and cleaning and drying the activated GF. With the method of the present disclosure, a microporous activated GF of a high SSA can be directly processed in-situ on a flexible substrate.

公开(公告)号：US20200230644A1

公开(公告)日：2020-07-23

申请号：US16717331

申请日：2019-12-17

Applicant: Guangdong University of Technology

Inventor： Yun CHEN ,  Junyu LONG ,  Shuang ZHOU ,  Xin CHEN ,  Jian GAO ,  Qiang LIU ,  Ching-Ping WONG ,  Shenghui ZHANG

IPC: B05D3/06 ,  B05D1/00 ,  B05D3/04 ,  B23K26/04 ,  B23K26/06 ,  B23K26/08 ,  B23K26/12 ,  B23K26/352 ,  B23K26/359

Abstract: A device for processing microstructure arrays of polystyrene-graphene nanocomposites, including a laser generator, a vacuum chamber, an object stage, an ultraviolet filter and a gas flow control unit. The object stage is detachably fixed to a bottom of the vacuum chamber with a passage that can be opened or closed. The ultraviolet filter is provided in the vacuum chamber. A laser light emitted by the laser generator arrives at the object stage through the ultraviolet filter. The object stage is configured to place a sample to be processed. The gas flow control unit is communicated with the vacuum chamber and is configured to control the flow of the gas entering the vacuum chamber. The vacuum chamber is fixed on a three-axis precision positioning platform via a vacuum chamber clamp. The device disclosed herein aims to solve the existing difficulty in processing microstructure arrays of polystyrene-graphene nanocomposites.