Advanced Oxygen Evolution Catalysts for PEM Electrolyzers

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$600,000.00
Award Year:
2011
Program:
SBIR
Phase:
Phase II
Contract:
NNX11CB34C
Award Id:
n/a
Agency Tracking Number:
094402
Solicitation Year:
2009
Solicitation Topic Code:
X7.03
Solicitation Number:
n/a
Small Business Information
Lynntech, Inc. (Currently LYNNTECH INC.)
TX, College Station, TX, 77840-4023
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
184758308
Principal Investigator:
Alan Cisar
Principal Investigator
(979) 693-0017
alan.cisar@lynntech.com
Business Contact:
Gloria Hisaw
Business Official
(979) 979-0017
renee.hisaw@lynntech.com
Research Institution:
Stub




Abstract
Future NASA missions require high efficiency, lightweight, long life, and maintenance-free water electrolyzer technologies to generate oxygen and/or hydrogen for energy storage, propulsion, life-support systems, cabin-oxygen replenishment, and zero-g science activities. International Space Station, future Lunar and Martian Outposts, and future exploration vehicles require high efficiency electrolyzers to improve their operational capabilities for long and complex missions. The oxygen evolution reaction is the limiting step due to non-optimal electrocatalyst structure. State-of-the-art electrocatalysts do not meet MEA efficiency and lifetime requirements for NASA applications. Advanced electrocatalysts are needed. In the Phase I, Lynntech manufactured a binary nanoparticle surface decorated mixed oxide electrocatalyst with the optimal microstructure and demonstrated an MEA efficiency of>90% (i.e., an electrolysis potential of 1.358 V/cell) at 200 mA/cm2. In the Phase II program, Lynntech will investigate different catalyst morphologies to improve the lifetime. In addition, ternary transition metal oxides will be incorporated into the mixed oxide to further increase the efficiency and lifetime. The applicability of this advanced catalyst to different membranes will be investigated. Nanocomposite membranes with low hydrogen gas cross-over will be manufactured and tested. A short electrolyzer stack will be assembled with the optimized components, tested and delivered to NASA.

* information listed above is at the time of submission.

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