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  • Self-assembled vertically aligned Ni nanopillars in CeO 2 with anisotropic magnetic and transport properties for energy applications
Title: Self-assembled vertically aligned Ni nanopillars in CeO 2 with anisotropic magnetic and transport properties for energy applications
Self-assembled vertically aligned metal–oxide (Ni–CeO 2 ) nanocomposite thin films with novel multifunctionalities have been successfully deposited by a one-step growth method. The novel nanocomposite structures presents high-density Ni-nanopillars vertically aligned in a CeO 2 matrix. Strong and anisotropic magnetic properties have been demonstrated, with a saturation magnetization ( M s ) of ∼175 emu cm −3 and ∼135 emu cm −3 for out-of-plane and in-plane directions, respectively. Such unique vertically aligned ferromagnetic Ni nanopillars in the CeO 2 matrix have been successfully incorporated in high temperature superconductor YBa 2 Cu 3 O 7 (YBCO) coated conductors as effective magnetic flux pinning centers. The highly anisotropic nanostructures with high density vertical interfaces between the Ni nanopillars and CeO 2 matrix also promote the mixed electrical and ionic conductivities out-of-plane and thus demonstrate great potential as nanocomposite anode materials for solid oxide fuel cells and other potential applications requiring anisotropic ionic transport properties.  more » « less
Award ID(s):
1809520
PAR ID:
10092850
Author(s) / Creator(s):
; ; ; ; ; ; ;
Date Published:
Journal Name:
Nanoscale
Volume:
10
Issue:
36
ISSN:
2040-3364
Page Range / eLocation ID:
17182 to 17188
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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