公开(公告)号：US20230286805A1

公开(公告)日：2023-09-14

申请号：US18304316

申请日：2023-04-20

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： FENG LIANG ,  ZHIPENG XIE ,  DA ZHANG

IPC: C01B32/18 ,  B01J37/08 ,  B01J21/18 ,  B01J35/00 ,  B01J23/42

CPC classification number: C01B32/18 ,  B01J21/18 ,  B01J23/42 ,  B01J35/0013 ,  B01J37/08

Abstract: A method includes the following steps: a first step: the material containing heteroatom and graphite powder are mixed for a preset time by grinding, and the molar ratio of heteroatom to carbon atom is 1%-10%, then the heteroatom precursors are obtained; a second contact step: the heteroatom precursor is filled into a graphite rod with holes and compacted, then the graphite rod is dried for a preset time to obtain a plasma anode and using a DC arc plasma device to prepare the graphite anode into heteroatom-doped CNHs; a third contact step: the heteroatom-doped CNHs are dispersed in a reducing solution, a platinum salt is added to stir evenly, the reduction reaction is carried out by heating and stirring, and after centrifugation, washing and drying, a catalyst with platinum loading is obtained.

公开(公告)号：US20220185672A1

公开(公告)日：2022-06-16

申请号：US17548606

申请日：2021-12-13

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： FENG LIANG ,  ZHIPENG XIE ,  ZHENGGANG TANG ,  XIECHENG YANG ,  DA ZHANG ,  MINJIE HOU ,  YAO KANG ,  BIN YANG ,  YONGNIAN DAI

IPC: C01B32/18 ,  H01M10/0525 ,  H01M10/54 ,  H01M4/583

Abstract: The present disclosure relates to a method for production of nitrogen-doped single wall carbon nanohorns from anode graphite of wasted lithium-ion batteries. The method includes the following steps: a first step: forming recycled graphite powder into graphite blocks; and, a second contact step: when the first step is completed, using a DC arc plasma device to produce the graphite blocks into N-SWCNHs.