Direct synthesis of magnesium borohydride
Patent
·
OSTI ID:1041045
- Kennewick, WA
- Honolulu, HI
- Kailua, HI
A method is disclosed for directly preparing an alkaline earth metal borohydride, i.e. Mg(BH.sub.4).sub.2, from the alkaline earth metal boride MgB.sub.2 by hydrogenating the MgB.sub.2 at an elevated temperature and pressure. The boride may also be doped with small amounts of a metal chloride catalyst such as TiCl.sub.3 and/or NiCl.sub.2. The process provides for charging MgB.sub.2 with high pressure hydrogen above at least 70 MPa while simultaneously heating the material to about 350.degree. C. to about 400.degree. C. The method is relatively simple and inexpensive and provides a reversible hydride compound having a hydrogen capacity of at least 11 wt %.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- Assignee:
- Sandia Corporation (Livermore, CA)
- Patent Number(s):
- 8,147,788
- Application Number:
- 12/553,633
- OSTI ID:
- 1041045
- Country of Publication:
- United States
- Language:
- English
Formation of Ca(BH 4 ) 2 from Hydrogenation of CaH 2 +MgB 2 Composite
|
journal | February 2008 |
Similar Records
Direct synthesis of calcium borohydride
Destabilized and catalyzed borohydride for reversible hydrogen storage
Ternary borides and borohydrides for hydrogen storage and method of synthesis
Patent
·
Tue Oct 27 00:00:00 EDT 2009
·
OSTI ID:982370
Destabilized and catalyzed borohydride for reversible hydrogen storage
Patent
·
Mon Feb 27 23:00:00 EST 2012
·
OSTI ID:1036108
Ternary borides and borohydrides for hydrogen storage and method of synthesis
Patent
·
Mon Dec 06 23:00:00 EST 2021
·
OSTI ID:1860134