公开(公告)号：US20210039947A1

公开(公告)日：2021-02-11

申请号：US16977705

申请日：2019-09-19

Applicant: South China University of Technology

Inventor： Liuzhang Ouyang ,  Kang Chen ,  Hui Wang ,  Jiangwen Liu ,  Min Zhu

IPC: C01B6/17

Abstract: A method for preparing lithium borohydride by means of room temperature solid phase ball milling, comprising the following steps: uniformly mixing a magnesium-containing reducing agent and a lithium metaborate-containing reducing material under a non-oxidizing atmosphere at room temperature, performing solid phase ball milling, isolating and purifying to obtain lithium borohydride. The method has the advantages of having a simple process, having a controllable and adjustable reaction procedure, having mild reaction conditions, energy consumption being low, costs being low, and output being high, while creating no pollution, being safe and cyclically using boron resources, having important practical significance.

公开(公告)号：US10202279B2

公开(公告)日：2019-02-12

申请号：US15541395

申请日：2015-12-29

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Liuzhang Ouyang ,  Ruoming Duan ,  Hui Wang ,  Jiangwen Liu ,  Min Zhu

IPC: B22F9/02 ,  B22F9/04 ,  B22F9/08 ,  C01B3/00 ,  C01B3/06 ,  C01B6/24 ,  C22C1/02 ,  C22C1/04 ,  B01J20/04 ,  B01J20/30

Abstract: Provided are a CaMg2-based alloy hydride material for hydrolysis production of hydrogen, a preparation method therefor and a use thereof. The material has a general formula of CaMgxMyHz, wherein M is Ni, Co or Fe, 1.5≤x

公开(公告)号：US11807540B2

公开(公告)日：2023-11-07

申请号：US16977705

申请日：2018-10-30

Applicant: South China University of Technology

Inventor： Liuzhang Ouyang ,  Kang Chen ,  Hui Wang ,  Jiangwen Liu ,  Min Zhu

IPC: C01B6/17

CPC classification number: C01B6/17 ,  C01P2002/74 ,  C01P2002/82 ,  C01P2006/80

Abstract: A method for preparing lithium borohydride by means of room temperature solid phase ball milling, comprising the following steps: uniformly mixing a magnesium-containing reducing agent and a lithium metaborate-containing reducing material under a non-oxidizing atmosphere at room temperature, performing solid phase ball milling, isolating and purifying to obtain lithium borohydride. The method has the advantages of having a simple process, having a controllable and adjustable reaction procedure, having mild reaction conditions, energy consumption being low, costs being low, and output being high, while creating no pollution, being safe and cyclically using boron resources, having important practical significance.

公开(公告)号：US20210284531A1

公开(公告)日：2021-09-16

申请号：US16332391

申请日：2016-12-13

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Liuzhang Ouyang ,  Hao Zhong ,  Wei Chen ,  Hui Wang ,  Jiangwen Liu ,  Min Zhu

IPC: C01B6/21

Abstract: The present invention discloses a method for directly synthesizing sodium borohydride by solid-state ball milling at room temperature, which comprises: performing solid-state ball milling on a mixture of a reducing agent and a reduced material by using a ball mill under room temperature, and performing purification to obtain sodium borohydride. The reducing agent comprises one or more of magnesium, magnesium hydride, aluminum, calcium, and magnesium silicide. The reduced material is sodium metaborate containing crystallization water or sodium metaborate, or is a mixture of sodium metaborate containing crystallization water and sodium metaborate. The solid-state milling is performed in a mixed atmosphere of argon and hydrogen, or an argon atmosphere, or a hydrogen atmosphere. The present invention has a simple process, a controllable and adjustable reaction procedure, mild reaction conditions, low energy consumption, low costs, high yield, no pollution, good safety, and easy industrial production.

公开(公告)号：US11420870B2

公开(公告)日：2022-08-23

申请号：US16332391

申请日：2016-12-13

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Liuzhang Ouyang ,  Hao Zhong ,  Wei Chen ,  Hui Wang ,  Jiangwen Liu ,  Min Zhu

IPC: C01B6/21 ,  B02C4/00

Abstract: The present invention discloses a method for directly synthesizing sodium borohydride by solid-state ball milling at room temperature, which comprises: performing solid-state ball milling on a mixture of a reducing agent and a reduced material by using a ball mill under room temperature, and performing purification to obtain sodium borohydride. The reducing agent comprises one or more of magnesium, magnesium hydride, aluminum, calcium, and magnesium silicide. The reduced material is sodium metaborate containing crystallization water or sodium metaborate, or is a mixture of sodium metaborate containing crystallization water and sodium metaborate. The solid-state milling is performed in a mixed atmosphere of argon and hydrogen, or an argon atmosphere, or a hydrogen atmosphere. The present invention has a simple process, a controllable and adjustable reaction procedure, mild reaction conditions, low energy consumption, low costs, high yield, no pollution, good safety, and easy industrial production.

公开(公告)号：US09764951B2

公开(公告)日：2017-09-19

申请号：US14917142

申请日：2013-12-20

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Min Zhu ,  Huaijun Lin ,  Liuzhang Ouyang ,  Hui Wang ,  Jiangwen Liu ,  Weihua Wang ,  Deqian Zhao

IPC: C01B3/00 ,  B22F9/04 ,  B22F9/00 ,  C22C1/00 ,  C22C45/00 ,  C22C23/00 ,  C22F1/06 ,  C22C23/06

CPC classification number: C01B3/0057 ,  B22F9/008 ,  B22F9/04 ,  B22F2301/058 ,  B22F2301/45 ,  C01B3/0031 ,  C01B3/0078 ,  C21D2201/03 ,  C22C1/002 ,  C22C23/00 ,  C22C23/06 ,  C22C45/00 ,  C22C45/005 ,  C22F1/06 ,  Y02E60/327

Abstract: A method for preparing a magnesium-based hydrogen storage material, includes: a Mg—Ce—Ni family amorphous alloy is prepared by a rapid cooling process; the amorphous alloy is pulverized, so as to obtain a amorphous powder; the amorphous alloy is activated, so as to obtain a MgH2—Mg2NiH4—CeH2.73 family nanocrystalline composite; the abovementioned composite is carried out a hydrogen absorption and desorption cycle, then the composite is placed in a pure Ar atmosphere for passivation, finally, the passivated composite is oxidized, so as to obtain a MgH2—Mg2NiH4—CeH2.73—CeO2 family nanocrystalline composite.