Extra-low-temperature oxygen storage capacity of CeO2 nanocrystals with cubic facets.

Zhang, Jing; Kumagai, Hitoshi; Yamamura, Kae; Ohara, Satoshi; Takami, Seiichi; Morikawa, Akira; Shinjoh, Hirofumi; Kaneko, Kenji et al. · Nano Lett · 2011

basic_science · Level V

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Abstract

Herein we demonstrate the extra-low-temperature oxygen storage capacity (OSC) of cerium oxide nanocrystals with cubic (100) facets. A considerable OSC occurs at 150 °C without active species loading. This temperature is 250 °C lower than that of irregularly shaped cerium oxide. This result indicates that cubic (100) facets of cerium oxide have the characteristics to be a superior low-temperature catalyst.

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