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Letter

Nature Materials 7, 303–307 (1 April 2008) | doi:10.1038/nmat2127

Gated proton transport in aligned mesoporous silica films

Rong Fan , Seong Huh , Ruoxue Yan , John Arnold & Peidong Yang

Modulated proton transport plays significant roles in biological processes such as ATP synthesis as well as in technologically important applications including, for example, hydrogen fuel cells. The state-of-the-art proton-exchange membrane is the sulphonated tetrafluoroethylene copolymer Nafion developed by DuPont in the late 1960s, with a high proton conductivity.