公开(公告)号：US10947118B2

公开(公告)日：2021-03-16

申请号：US15957011

申请日：2018-04-19

Applicant: Xi'an University of Technology

Inventor： Changqing Fang ,  Xing Zhou ,  Rong Yang ,  Shaofei Pan ,  Wanqing Lei ,  Yan Li

IPC: C01B32/16

Abstract: The present invention relates to carbon nanotubes and a preparation method thereof by using PET. The carbon nanotubes of the present invention are prepared by processes of alcoholysis of PET materials, processes of washing, crushing and calcining unreacted intermediates and so on. By the preparation method of the present invention, multi-walled carbon nanotubes prepared by using waste PET have a good conductivity, and are a structure of top-down array with low aspect ratio. The method of the present invention is not only easy to implement, but also does not need a catalyst, and turns the waste PET into treasure, which solves the problem of environmental pollution caused by the increasingly serious waste PET. FIG. 9.

公开(公告)号：US20180319665A1

公开(公告)日：2018-11-08

申请号：US15957011

申请日：2018-04-19

Applicant: Xi'an University of Technology

Inventor： Changqing Fang ,  Xing Zhou ,  Rong Yang ,  Shaofei Pan ,  Wanqing Lei ,  Yan Li

IPC: C01B32/16

CPC classification number: C01B32/16 ,  C01B2202/06 ,  C01B2202/36 ,  C01P2002/82 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/133 ,  Y02P20/584

Abstract: The present invention relates to carbon nanotubes and a preparation method thereof by using PET. The carbon nanotubes of the present invention are prepared by processes of alcoholysis of PET materials, processes of washing, crushing and calcining unreacted intermediates and so on. By the preparation method of the present invention, multi-walled carbon nanotubes prepared by using waste PET have a good conductivity, and are a structure of top-down array with low aspect ratio. The method of the present invention is not only easy to implement, but also does not need a catalyst, and turns the waste PET into treasure, which solves the problem of environmental pollution caused by the increasingly serious waste PET. FIG. 9.