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PNNL rolls out its clean energy tech at ARPA-E
Date:2/22/2013

develop a material called an electrical metal organic framework, also called an EMOF, for electric vehicle heating and cooling systems. The material would work as a molecular heat pump that efficiently circulates heat or cold. By directly controlling the material's properties with electricity, their design is expected to use much less energy than traditional heat and cooling systems. A 5-pound, EMOF-based heat pump that is the size of a 2-liter bottle could theoretically handle the heating and cooling needs of an electric vehicle with far less impact on driving distance. While using a unique testing system that applies voltage to the material, the team observed for the first time an EMOF transitioning from an off, or insulating, state to an on, or semiconducting, state. The transition demonstrated the project's premise, coincided with a change in the material's crystal structure and was completely reversible. The team is now making other EMOFs with similar switching abilities and higher adsorption capacities that improve performance in an electric heat pump.


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Contact: Franny White
franny.white@pnnl.gov
509-375-6904
DOE/Pacific Northwest National Laboratory
Source:Eurekalert

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