Cerium Oxide Nanorods with Unprecedented Low-Temperature Oxygen Storage Capacity

Yoshifumi Ishikawa; Maiki Takeda; Susumu Tsukimoto; Koji S Nakayama; Naoki Asao

doi:10.1002/adma.201504101

Cerium Oxide Nanorods with Unprecedented Low-Temperature Oxygen Storage Capacity

Adv Mater. 2016 Feb 17;28(7):1467-71. doi: 10.1002/adma.201504101. Epub 2015 Dec 11.

Authors

Yoshifumi Ishikawa¹, Maiki Takeda¹, Susumu Tsukimoto¹, Koji S Nakayama¹, Naoki Asao¹

Affiliation

¹ WPI-Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan.

PMID: 26663025
DOI: 10.1002/adma.201504101

Abstract

Ultrafine cerium oxide nanorods are produced from rapidly liquid quenched Ce-Al alloy precursors by a corrosion method through the selective leaching of Al and the oxidation of Ce in an alkaline medium under mild conditions. The obtained nanorods, having 5-7 nm diameter, exhibit unprecedented low-temperature oxygen-storage capacity (OSC) performance.

Keywords: cerium oxide; corrosion; intermetallic compound; nanorods; oxygen storage capacity.