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|Title:||Structure and catalytic behaviour of CuO-CeO2 prepared by high-energy ball milling|
|Authors:||The Luong, Nguyen|
Ishihara, Keiichi N.
|Author's alias:||奥村, 英之|
oxygen storage capacity
|Publisher:||The Royal Society|
|Journal title:||Royal Society Open Science|
|Abstract:||The aim of this study is to prepare CuO-CeO2 composite by means of mechanical milling and to investigate its characteristics as a catalyst. The structural and morphological features of milled samples are observed by X-ray diffractometry and scanning electron microscopy. The redox property and total OSC (oxygen storage capacity) of the milled sample were measured by using GC-TCD and TG-DTA, which are important parameters to indicate the effectiveness of catalysts. Interestingly, reduction of CuO is repeatedly observed when milling of CuO-CeO2 powder mixture is processed in air. The redox property of milled CuO-CeO2 sample is investigated by H2-TPR, where three reduction peaks are observed for 0 h milling and only one broad peak for various other milling times. The total OSC of mechanically driven CuO-CeO2 catalyst is much higher than that of the CeO2-ZrO2 traditional catalyst system at low temperatures.|
|Rights:||© 2019 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.|
|Appears in Collections:||Journal Articles|
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