具有立方面的 CeO2 纳米晶体的超低温储氧能力。

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

机构信息

Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Aoba-ku, Sendai, Japan.

出版信息

Nano Lett. 2011 Feb 9;11(2):361-4. doi: 10.1021/nl102738n. Epub 2011 Jan 4.

PMID:21204550

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.

摘要

在此，我们展示了具有立方（100）面的氧化铈纳米晶体的超低温度氧气存储能力（OSC）。在不加载活性物质的情况下，在 150°C 时会发生相当大的 OSC。这个温度比不规则形状的氧化铈低 250°C。这一结果表明，氧化铈的立方（100）面具有成为低温优质催化剂的特点。