Effective synthesis of magnesium borohydride via B-O to B-H bond conversion

时间:2022-07-05作者:浏览量:101


Effective synthesis of magnesium borohydride via B-O to B-H bond conversion

作者:

Zhu, YY (Zhu, Yongyang) [1] , [4] ; Shen, SY (Shen, Shaoyang) [1] ; Ouyang, LZ (Ouyang, Liuzhang) [1] , [2] ; Liu, JW (Liu, Jiangwen) [1] ; Wang, H (Wang, Hui) [1] ; Huang, ZG (Huang, Zhenguo) [3] ; Zhu, M (Zhu, Min) [1]

查看 Web of Science ResearcherID 和 ORCID (由 Clarivate 提供) CHEMICAL ENGINEERING JOURNAL

卷432

文献号134322

DOI10.1016/j.cej.2021.134322

出版时间MAR 15 2022

已索引2022-04-21

文献类型Article

摘要

Magnesium borohydride (Mg(BH4)(2)) is widely regarded as a promising hydrogen storage material due to its high capacity; however, it is still challenging to synthesize Mg(BH4)(2) with low cost. Traditionally, Mg(BH4)(2) has been mainly produced using other borohydride as the starting materials via exchange reactions. Herein, we report an economical method to synthesize Mg(BH4)(2) by converting B-O bonds in widely available borates or boric acid to B-H. The borates or boric acid is ball-milled with MgH2 under ambient conditions to form Mg(BH4)(2) with high yield (> 80%). Mg(BH4)(2) was also successfully generated by reacting low-cost Mg with boric acid. Compared with previous approaches, this method avoids expensive boron sources such as LiBH4, NaBH4, and B2H6, and does not require high pressure H-2 gas and high temperatures, and therefore significantly reduces costs. This method could be an alternative to the current Mg(BH4)(2) synthesis processes.


关键词

作者关键词Magnesium borohydrideBoron compoundMagnesium hydrideHydrogen storage

Keywords PlusMG(BH4)(2)

作者信息

通讯作者地址

Ouyang, Liuzhang

(通讯作者)

South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China

通讯作者地址

Huang, Zhenguo

(通讯作者)

Univ Technol Sydney, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia

地址

1 South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China

2 Key Lab Fuel Cell Technol Guangdong Prov, China Australia Joint Lab Energy & Environm Mat, Guangzhou 510641, Peoples R China

3 Univ Technol Sydney, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia

4 Guangdong Acad Sci, Inst Resources Utilizat & Rare Earth Dev, Guangzhou 510650, Peoples R China

电子邮件地址meouyang@scut.edu.cnzhenguo.huang@uts.edu.au

类别/分类

研究方向Engineering