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Example of a membrane developed at GTI.
Energy Storage
Large-scale electricity storage technologies can provide significant benefits to both the power industry and its customers, including improved power quality and reliable delivery of electricity, plus enhanced availability and increased market value of distributed generation sources.
Energy storage devices help manage the amount of power needed during peak electric use times, and assist in easily integrating renewable energy into the transmission grid. GTI is helping to meet the global demand for energy storage through super capacitors, flow and NAS batteries, and heat to electricity systems.

Using functional materials to store hydrogen and methane can increase gas storage capacities at low and safe pressures, key elements of GTI projects focused on storing hydrogen for fuel cell vehicles and storing methane for natural gas vehicles. 
Energy Conversion
GTI has a legacy of R&D advancements in energy conversion technology, developing low-cost, efficient technologies to produce hydrogen or other fuels that are converted into electricity via fuel cells. Capabilities include development of electrolyzers (both standard and solar) and biocatalytic processes to produce hydrogen and methane. We have also used steam reforming and other technologies for onsite hydrogen production. Working with pressure swing adsorption (PSA) system developers and innovative membrane technologies, hydrogen clean-up and purification systems have been developed and tested.
Fuel Cells
Fuel cells convert the chemical energy from a fuel—most commonly hydrogen, but natural gas and other options can be used too—into electricity through a chemical reaction with oxygen or another oxidizing agent. GTI has a long history developing high-temperature fuel cells and has amassed over 80 U.S. patents on fuel cell technology. Our R&D efforts include direct-coal, alkaline, PEM, SOFC, molten carbonate and bio fuel cell technologies and focus on both large-scale, stationary fuel cell systems for power co-generation as well as smaller fuel cells to power vehicles.
Materials Testing and Development
GTI provides materials testing and development and can scale up for material production. We have expertise in developing membranes for gas and water purification; separators and electrodes for electrochemical devices; and catalysts for NOx reduction. GTI pioneered the use of methanation to control carbon monoxide content in reformate fuel, and advancements have been made with sulfur-tolerant and other specialized catalysts. We have also developed bipolar metal separator plates for fuel cells, electrolyzers, and batteries.


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