Squeezing iron-containing ferrocene (not to scale) in the pores of the metal-organic framework known as MIL-101 lets ferrocene’s iron snag oxygen from passing air. Credit: PNNL
Inexpensive materials called MOFs pull gases out of air or other mixed gas streams, but fail to do so with oxygen. Now, a team has overcome this limitation by creating a composite of a MOF and a helper molecule in which the 2 work in concert to separate oxygen from other gases simply and cheaply. The results might help with a wide variety of applications, including making pure oxygen for fuel cells, using that oxygen in a fuel cell, removing oxygen in food packaging, making oxygen sensors, or for other industrial processes...
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