Method of generating hydrogen gas from sodium borohydride
Abstract
A compact solid source of hydrogen gas, where the gas is generated by contacting water with micro-disperse particles of sodium borohydride in the presence of a catalyst, such as cobalt or ruthenium. The micro-disperse particles can have a substantially uniform diameter of 1-10 microns, and preferably about 3-5 microns. Ruthenium or cobalt catalytic nanoparticles can be incorporated in the micro-disperse particles of sodium borohydride, which allows a rapid and complete reaction to occur without the problems associated with caking and scaling of the surface by the reactant product sodium metaborate. A closed loop water management system can be used to recycle wastewater from a PEM fuel cell to supply water for reacting with the micro-disperse particles of sodium borohydride in a compact hydrogen gas generator. Capillary forces can wick water from a water reservoir into a packed bed of micro-disperse fuel particles, eliminating the need for using an active pump.
- Inventors:
-
- Placitas, NM
- Sandia Park, NM
- Albuquerque, NM
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 921027
- Patent Number(s):
- 7306780
- Application Number:
- 10/830,989
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Kravitz, Stanley H, Hecht, Andrew M, Sylwester, Alan P, and Bell, Nelson S. Method of generating hydrogen gas from sodium borohydride. United States: N. p., 2007.
Web.
Kravitz, Stanley H, Hecht, Andrew M, Sylwester, Alan P, & Bell, Nelson S. Method of generating hydrogen gas from sodium borohydride. United States.
Kravitz, Stanley H, Hecht, Andrew M, Sylwester, Alan P, and Bell, Nelson S. Tue .
"Method of generating hydrogen gas from sodium borohydride". United States. https://www.osti.gov/servlets/purl/921027.
@article{osti_921027,
title = {Method of generating hydrogen gas from sodium borohydride},
author = {Kravitz, Stanley H and Hecht, Andrew M and Sylwester, Alan P and Bell, Nelson S},
abstractNote = {A compact solid source of hydrogen gas, where the gas is generated by contacting water with micro-disperse particles of sodium borohydride in the presence of a catalyst, such as cobalt or ruthenium. The micro-disperse particles can have a substantially uniform diameter of 1-10 microns, and preferably about 3-5 microns. Ruthenium or cobalt catalytic nanoparticles can be incorporated in the micro-disperse particles of sodium borohydride, which allows a rapid and complete reaction to occur without the problems associated with caking and scaling of the surface by the reactant product sodium metaborate. A closed loop water management system can be used to recycle wastewater from a PEM fuel cell to supply water for reacting with the micro-disperse particles of sodium borohydride in a compact hydrogen gas generator. Capillary forces can wick water from a water reservoir into a packed bed of micro-disperse fuel particles, eliminating the need for using an active pump.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 11 00:00:00 EST 2007},
month = {Tue Dec 11 00:00:00 EST 2007}
}