Platinum Nanocages Cut Catalyst Cost

Structures are produced by depositing platinum on palladium and then etching away almost all of the palladium.

Chemical Processing Staff
platinum nanocages mn

Tiny hollow porous platinum structures can significantly reduce the amount of the precious metal required to catalyze reactions such as those in fuel cells, report researchers. The ultra-thin-wall nanocages enable catalytic activity on both inside and outside surfaces, increasing the efficiency of platinum in fuel cell electrodes by a factor of as much as seven and allowing use of larger nanocrystals that are less susceptible to sintering, they note. “We can get the catalytic activity we need using only a small fraction of the platinum that has been required before,” says Younan Xia, a professor in the department of biomedical engineering at Georgia Institute of…

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