title: Heterogeneous films of ordered CeO(2)/Ni concentric nanostructures for fuel cell applications.
abstract: Heterogeneous films of ordered CeO(2)/Ni concentric nanostructures have been fabricated through template-assisted electrodeposition. The free-standing films of Ni metal (8 mum thickness) contain ordered arrays of ceria tubes (200 nm OD, 100 nm ID). Ni/CeO(2) coaxial nanotubes were also obtained by tuning experimental conditions. The interfacial contact area within the 3-dimensional oxide nanotube/nickel matrix is approximately 100 times greater than 2-dimensional thin films of nickel and ceria of the same area. The use of the film as an anode electrocatalyst/current collector is demonstrated in a solid oxide fuel cell.
authors.affiliation: Department of Chemistry and Biochemistry, University of Maryland, , College Park, MD 20742, USA.
authors.forename: Chunjuan
authors.initials: C
authors.lastname: Zhang
authors.forename: Jessica
authors.initials: J
authors.lastname: Grandner
authors.forename: Ran
authors.initials: R
authors.lastname: Liu
authors.forename: Sang Bok
authors.initials: SB
authors.lastname: Lee
authors.forename: Bryan W
authors.initials: BW
authors.lastname: Eichhorn