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Synthesis of ultrasmall Li–Mn spinel oxides exhibiting unusual ion exchange, electrochemical, and catalytic properties
The efficient surface reaction and rapid ion diffusion of nanocrystalline metal oxides have prompted considerable research interest for the development of high functional materials. Herein, we present a novel low-temperature method to synthesize ultrasmall nanocrystalline spinel oxides by controllin...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4601032/ https://www.ncbi.nlm.nih.gov/pubmed/26456216 http://dx.doi.org/10.1038/srep15011 |
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author | Miyamoto, Yumi Kuroda, Yoshiyuki Uematsu, Tsubasa Oshikawa, Hiroyuki Shibata, Naoya Ikuhara, Yuichi Suzuki, Kosuke Hibino, Mitsuhiro Yamaguchi, Kazuya Mizuno, Noritaka |
author_facet | Miyamoto, Yumi Kuroda, Yoshiyuki Uematsu, Tsubasa Oshikawa, Hiroyuki Shibata, Naoya Ikuhara, Yuichi Suzuki, Kosuke Hibino, Mitsuhiro Yamaguchi, Kazuya Mizuno, Noritaka |
author_sort | Miyamoto, Yumi |
collection | PubMed |
description | The efficient surface reaction and rapid ion diffusion of nanocrystalline metal oxides have prompted considerable research interest for the development of high functional materials. Herein, we present a novel low-temperature method to synthesize ultrasmall nanocrystalline spinel oxides by controlling the hydration of coexisting metal cations in an organic solvent. This method selectively led to Li–Mn spinel oxides by tuning the hydration of Li(+) ions under mild reaction conditions (i.e., low temperature and short reaction time). These particles exhibited an ultrasmall crystallite size of 2.3 nm and a large specific surface area of 371 ± 15 m(2) g(−1). They exhibited unique properties such as unusual topotactic Li(+)/H(+) ion exchange, high-rate discharge ability, and high catalytic performance for several aerobic oxidation reactions, by creating surface phenomena throughout the particles. These properties differed significantly from those of Li–Mn spinel oxides obtained by conventional solid-state methods. |
format | Online Article Text |
id | pubmed-4601032 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-46010322015-10-21 Synthesis of ultrasmall Li–Mn spinel oxides exhibiting unusual ion exchange, electrochemical, and catalytic properties Miyamoto, Yumi Kuroda, Yoshiyuki Uematsu, Tsubasa Oshikawa, Hiroyuki Shibata, Naoya Ikuhara, Yuichi Suzuki, Kosuke Hibino, Mitsuhiro Yamaguchi, Kazuya Mizuno, Noritaka Sci Rep Article The efficient surface reaction and rapid ion diffusion of nanocrystalline metal oxides have prompted considerable research interest for the development of high functional materials. Herein, we present a novel low-temperature method to synthesize ultrasmall nanocrystalline spinel oxides by controlling the hydration of coexisting metal cations in an organic solvent. This method selectively led to Li–Mn spinel oxides by tuning the hydration of Li(+) ions under mild reaction conditions (i.e., low temperature and short reaction time). These particles exhibited an ultrasmall crystallite size of 2.3 nm and a large specific surface area of 371 ± 15 m(2) g(−1). They exhibited unique properties such as unusual topotactic Li(+)/H(+) ion exchange, high-rate discharge ability, and high catalytic performance for several aerobic oxidation reactions, by creating surface phenomena throughout the particles. These properties differed significantly from those of Li–Mn spinel oxides obtained by conventional solid-state methods. Nature Publishing Group 2015-10-12 /pmc/articles/PMC4601032/ /pubmed/26456216 http://dx.doi.org/10.1038/srep15011 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ 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/ |
spellingShingle | Article Miyamoto, Yumi Kuroda, Yoshiyuki Uematsu, Tsubasa Oshikawa, Hiroyuki Shibata, Naoya Ikuhara, Yuichi Suzuki, Kosuke Hibino, Mitsuhiro Yamaguchi, Kazuya Mizuno, Noritaka Synthesis of ultrasmall Li–Mn spinel oxides exhibiting unusual ion exchange, electrochemical, and catalytic properties |
title | Synthesis of ultrasmall Li–Mn spinel oxides exhibiting unusual ion exchange, electrochemical, and catalytic properties |
title_full | Synthesis of ultrasmall Li–Mn spinel oxides exhibiting unusual ion exchange, electrochemical, and catalytic properties |
title_fullStr | Synthesis of ultrasmall Li–Mn spinel oxides exhibiting unusual ion exchange, electrochemical, and catalytic properties |
title_full_unstemmed | Synthesis of ultrasmall Li–Mn spinel oxides exhibiting unusual ion exchange, electrochemical, and catalytic properties |
title_short | Synthesis of ultrasmall Li–Mn spinel oxides exhibiting unusual ion exchange, electrochemical, and catalytic properties |
title_sort | synthesis of ultrasmall li–mn spinel oxides exhibiting unusual ion exchange, electrochemical, and catalytic properties |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4601032/ https://www.ncbi.nlm.nih.gov/pubmed/26456216 http://dx.doi.org/10.1038/srep15011 |
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