Volume 90 Issue 52 | p. 17 | Concentrates
Issue Date: December 24, 2012

Encapsulation Protects Iron Catalyst

Sequestering Fe nanoparticles in peapod-type carbon nanotubes shields the metal from acid leaching in fuel cells
Department: Science & Technology
News Channels: Materials SCENE, Environmental SCENE
Keywords: fuel cell, PEM fuel cell, iron, platinum

Encapsulating iron nanoparticles in pea-pod-like carbon nanotubes shields the metal from the harsh chemical environment common to fuel cells. Yet it leaves the particles free to catalyze reactions that are key to generating electricity, according to researchers in China (Angew. Chem. Int. Ed., DOI: 10.1002/anie.201204958). The finding suggests strategies for reducing the high cost of polymer electrolyte membrane (PEM) fuel cells by substituting inexpensive . . .

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