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タイトル: | Structure and catalytic behaviour of CuO-CeO2 prepared by high-energy ball milling |
著者: | The Luong, Nguyen Okumura, Hideyuki https://orcid.org/0000-0002-2576-7510 (unconfirmed) Yamasue, Eiji Ishihara, Keiichi N. |
著者名の別形: | 奥村, 英之 山末, 英嗣 石原, 慶一 |
キーワード: | CuO oxygen storage capacity H2-temperature-programmed reduction CeO2 ZrO2 |
発行日: | 6-Feb-2019 |
出版者: | The Royal Society |
誌名: | Royal Society Open Science |
巻: | 6 |
号: | 2 |
論文番号: | 181861 |
抄録: | 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. |
著作権等: | © 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. |
URI: | http://hdl.handle.net/2433/237391 |
DOI(出版社版): | 10.1098/rsos.181861 |
PubMed ID: | 30891295 |
出現コレクション: | 学術雑誌掲載論文等 |
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