Method of Manufacturing Micro-Disperse Particles of 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 Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 953669
- Patent Number(s):
- 7427302
- Application Number:
- 11/695,144
- Assignee:
- Sandia Corporation
- 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, P, Sylwester Alan, and Bell, Nelson S. Method of Manufacturing Micro-Disperse Particles of Sodium Borohydride. United States: N. p., 2008.
Web.
Kravitz, Stanley H, Hecht, Andrew M, P, Sylwester Alan, & Bell, Nelson S. Method of Manufacturing Micro-Disperse Particles of Sodium Borohydride. United States.
Kravitz, Stanley H, Hecht, Andrew M, P, Sylwester Alan, and Bell, Nelson S. Tue .
"Method of Manufacturing Micro-Disperse Particles of Sodium Borohydride". United States. https://www.osti.gov/servlets/purl/953669.
@article{osti_953669,
title = {Method of Manufacturing Micro-Disperse Particles of Sodium Borohydride},
author = {Kravitz, Stanley H and Hecht, Andrew M and P, Sylwester Alan 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 = {2008},
month = {9}
}