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| タイトル: | A Synthetic Pseudo-Rh: NO_x Reduction Activity and Electronic Structure of Pd-Ru Solid-solution Alloy Nanoparticles. |
| 著者: | Sato, Katsutoshi   https://orcid.org/0000-0002-3998-7012 (unconfirmed)Tomonaga, Hiroyuki Yamamoto, Tomokazu Matsumura, Syo Zulkifli, Nor Diana Binti Ishimoto, Takayoshi Koyama, Michihisa Kusada, Kohei  https://orcid.org/0000-0002-9679-6749 (unconfirmed)Kobayashi, Hirokazu Kitagawa, Hiroshi https://orcid.org/0000-0001-6955-3015 (unconfirmed)Nagaoka, Katsutoshi |
| 著者名の別形: | 松村, 晶 古山, 通久 北川, 宏 永岡, 勝俊 |
| 発行日: | 24-Jun-2016 |
| 出版者: | Nature Publishing Group |
| 誌名: | Scientific reports |
| 巻: | 6 |
| 論文番号: | 28265 |
| 抄録: | Rh is one of the most important noble metals for industrial applications. A major fraction of Rh is used as a catalyst for emission control in automotive catalytic converters because of its unparalleled activity toward NO[x] reduction. However, Rh is a rare and extremely expensive element; thus, the development of Rh alternative composed of abundant elements is desirable. Pd and Ru are located at the right and left of Rh in the periodic table, respectively, nevertheless this combination of elements is immiscible in the bulk state. Here, we report a Pd-Ru solid-solution-alloy nanoparticle (Pd[x]Ru[1-x] NP) catalyst exhibiting better NO[x] reduction activity than Rh. Theoretical calculations show that the electronic structure of Pd[0. 5]Ru[0. 5] is similar to that of Rh, indicating that Pd[0. 5]Ru[0. 5] can be regarded as a pseudo-Rh. Pd[0. 5]Ru[0. 5] exhibits better activity than natural Rh, which implies promising applications not only for exhaust-gas cleaning but also for various chemical reactions. |
| 記述: | ロジウムを凌駕する排ガス浄化触媒活性を有する新規合金ナノ粒子－元素間融合により電子状態を改変、優れたNOx還元活性の発現－. 京都大学プレスリリース. 2016-06-27. |
| 著作権等: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| URI: | http://hdl.handle.net/2433/215280 |
| DOI(出版社版): | 10.1038/srep28265 |
| PubMed ID: | 27340099 |
| 関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2016-06-27 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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