Self-assembled periodic nanoporous network in multifunctional Zr O2 -Ce O2 - (La0.8 Sr0.2) Mn O3 composites

Vaneet Sharma, Jiechao Jiang, Maria Hossu, Ali R. Koymen, Shashank Priya

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This letter reports the structural characteristics of the self-assembled surface nanostructure in the 0.75 wt % (Zr0.88 Ce0.12) O2 -0.25 wt % (La0.8 Sr0.2) Mn O3 ceramics. The surface consists of periodic porous network with islandlike structures occurring at the triple boundary junctions. The pores were found to have the diameter in the range of 150-200 nm with the thickness of the porous surface layer of the order of 100 nm. The pore distribution was quasiperiodic with the spacing in the range of 50-150 nm. The formation of the nanoporous network is correlated to the structural transformation occurring in Zr O2 system.

Original languageEnglish (US)
Article number123110
JournalApplied Physics Letters
Issue number12
StatePublished - 2007
Externally publishedYes

Bibliographical note

Funding Information:
Two of the authors (V.S. and S.P.) gratefully acknowledge the support from Texas ARP and DOE. The authors (M.H. and A.K.) acknowledge support from the Welch Foundation.


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