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タイトル: | Formation of pseudomorphic nanocages from Cu2O nanocrystals through anion exchange reactions. |
著者: | Wu, Hsin-Lun Sato, Ryota https://orcid.org/0000-0002-7353-6880 (unconfirmed) Yamaguchi, Atsushi Kimura, Masato Haruta, Mitsutaka https://orcid.org/0000-0002-2237-7242 (unconfirmed) Kurata, Hiroki https://orcid.org/0000-0002-0682-1227 (unconfirmed) Teranishi, Toshiharu https://orcid.org/0000-0002-5818-8865 (unconfirmed) |
著者名の別形: | 呉, 欣倫 佐藤, 良太 山口, 睦 木村, 仁士 治田, 充貴 倉田, 博基 寺西, 利治 |
発行日: | 18-Mar-2016 |
出版者: | American Association for the Advancement of Science |
誌名: | Science |
巻: | 351 |
号: | 6279 |
開始ページ: | 1306 |
終了ページ: | 1310 |
抄録: | The crystal structure of ionic nanocrystals (NCs) is usually controlled through reaction temperature, according to their phase diagram. We show that when ionic NCs with different shapes, but identical crystal structures, were subjected to anion exchange reactions under ambient conditions, pseudomorphic products with different crystal systems were obtained. The shape-dependent anionic framework (surface anion sublattice and stacking pattern) of Cu2O NCs determined the crystal system of anion-exchanged products of CuxS nanocages. This method enabled us to convert a body-centered cubic lattice into either a face-centered cubic or a hexagonally close-packed lattice to form crystallographically unusual, multiply twinned structures. Subsequent cation exchange reactions produced CdS nanocages while preserving the multiply-twinned structures. A high-temperature stable phase such as wurtzite ZnS was also obtained with this method at ambient conditions. |
記述: | 常温・常圧でのイオン性ナノ結晶の結晶構造制御に成功 -新しい光エネルギー変換材料開発に期待-. 京都大学プレスリリース. 2016-03-18. |
著作権等: | © 2016 American Association for the Advancement of Science. All rights Reserved. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/210291 |
DOI(出版社版): | 10.1126/science.aad5520 |
PubMed ID: | 26989249 |
関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2016-03-18-0 |
出現コレクション: | 学術雑誌掲載論文等 |
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