公开(公告)号：US12103857B1

公开(公告)日：2024-10-01

申请号：US18303062

申请日：2023-04-19

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Feng Liang ,  Junxi Li ,  Da Zhang ,  Zhipeng Xie ,  Wenhui Ma ,  Bin Yang

IPC: C01B35/04

CPC classification number: C01B35/04

Abstract: A rapid preparation method of transition metal borides includes steps of: using a tungsten rod as the cathode, and a block mixture of boron powder and metal oxide as the anode, the block mixture and the tungsten rod are placed in an plasma device; the plasma device is evacuated, and then filled with a buffer gas and an electric arc is started to obtain a transition metal boride. The present disclosure adopts the direct current arc plasma method with the advantages of simple operation, low cost, environmental friendliness and controllable reaction atmosphere to prepare the transition metal boride, the preparation process is simple, the preparation process is fast, and the environment will not be affected.

公开(公告)号：US11827518B1

公开(公告)日：2023-11-28

申请号：US18315162

申请日：2023-05-10

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Feng Liang ,  Zhipeng Xie ,  Da Zhang ,  Long Ma ,  Yichang Liu ,  Junxi Li

IPC: C01B32/18

CPC classification number: C01B32/18 ,  C01P2002/02 ,  C01P2004/32 ,  C01P2004/64 ,  C01P2004/88 ,  C01P2006/80

Abstract: The present disclosure relates to a method for production of CNHs composite material. The method includes the following steps: a first step: the silicon particles and graphite powder are mixed for a preset time by planetary ball mill device, and the weight ratio of silicon element to carbon element is 10-40%, then the Si/C precursor is obtained; a second contact step: the Si/C precursor is pressed into a precursor block, then using precursor block to the CNHs composite material by a DC arc plasma device.