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Undoped Layered Perovskite Oxynitride Li(2)LaTa(2)O(6)N for Photocatalytic CO(2) Reduction with Visible Light
Oxynitrides are promising visible‐light‐responsive photocatalysts, but their structures are almost confined with three‐dimensional (3D) structures such as perovskites. A phase‐pure Li(2)LaTa(2)O(6)N with a layered perovskite structure was successfully prepared by thermal ammonolysis of a lithium‐ric...
Autores principales: | , , , , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6032927/ https://www.ncbi.nlm.nih.gov/pubmed/29737628 http://dx.doi.org/10.1002/anie.201803931 |
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author | Oshima, Takayoshi Ichibha, Tom Qin, Ken Sinkou Muraoka, Kanemichi Vequizo, Junie Jhon M. Hibino, Keisuke Kuriki, Ryo Yamashita, Shunsuke Hongo, Kenta Uchiyama, Tomoki Fujii, Kotaro Lu, Daling Maezono, Ryo Yamakata, Akira Kato, Hideki Kimoto, Koji Yashima, Masatomo Uchimoto, Yoshiharu Kakihana, Masato Ishitani, Osamu Kageyama, Hiroshi Maeda, Kazuhiko |
author_facet | Oshima, Takayoshi Ichibha, Tom Qin, Ken Sinkou Muraoka, Kanemichi Vequizo, Junie Jhon M. Hibino, Keisuke Kuriki, Ryo Yamashita, Shunsuke Hongo, Kenta Uchiyama, Tomoki Fujii, Kotaro Lu, Daling Maezono, Ryo Yamakata, Akira Kato, Hideki Kimoto, Koji Yashima, Masatomo Uchimoto, Yoshiharu Kakihana, Masato Ishitani, Osamu Kageyama, Hiroshi Maeda, Kazuhiko |
author_sort | Oshima, Takayoshi |
collection | PubMed |
description | Oxynitrides are promising visible‐light‐responsive photocatalysts, but their structures are almost confined with three‐dimensional (3D) structures such as perovskites. A phase‐pure Li(2)LaTa(2)O(6)N with a layered perovskite structure was successfully prepared by thermal ammonolysis of a lithium‐rich oxide precursor. Li(2)LaTa(2)O(6)N exhibited high crystallinity and visible‐light absorption up to 500 nm. As opposed to well‐known 3D oxynitride perovskites, Li(2)LaTa(2)O(6)N supported by a binuclear Ru(II) complex was capable of stably and selectively converting CO(2) into formate under visible light (λ>400 nm). Transient absorption spectroscopy indicated that, as compared to 3D oxynitrides, Li(2)LaTa(2)O(6)N possesses a lower density of mid‐gap states that work as recombination centers of photogenerated electron/hole pairs, but a higher density of reactive electrons, which is responsible for the higher photocatalytic performance of this layered oxynitride. |
format | Online Article Text |
id | pubmed-6032927 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-60329272018-07-12 Undoped Layered Perovskite Oxynitride Li(2)LaTa(2)O(6)N for Photocatalytic CO(2) Reduction with Visible Light Oshima, Takayoshi Ichibha, Tom Qin, Ken Sinkou Muraoka, Kanemichi Vequizo, Junie Jhon M. Hibino, Keisuke Kuriki, Ryo Yamashita, Shunsuke Hongo, Kenta Uchiyama, Tomoki Fujii, Kotaro Lu, Daling Maezono, Ryo Yamakata, Akira Kato, Hideki Kimoto, Koji Yashima, Masatomo Uchimoto, Yoshiharu Kakihana, Masato Ishitani, Osamu Kageyama, Hiroshi Maeda, Kazuhiko Angew Chem Int Ed Engl Communications Oxynitrides are promising visible‐light‐responsive photocatalysts, but their structures are almost confined with three‐dimensional (3D) structures such as perovskites. A phase‐pure Li(2)LaTa(2)O(6)N with a layered perovskite structure was successfully prepared by thermal ammonolysis of a lithium‐rich oxide precursor. Li(2)LaTa(2)O(6)N exhibited high crystallinity and visible‐light absorption up to 500 nm. As opposed to well‐known 3D oxynitride perovskites, Li(2)LaTa(2)O(6)N supported by a binuclear Ru(II) complex was capable of stably and selectively converting CO(2) into formate under visible light (λ>400 nm). Transient absorption spectroscopy indicated that, as compared to 3D oxynitrides, Li(2)LaTa(2)O(6)N possesses a lower density of mid‐gap states that work as recombination centers of photogenerated electron/hole pairs, but a higher density of reactive electrons, which is responsible for the higher photocatalytic performance of this layered oxynitride. John Wiley and Sons Inc. 2018-05-30 2018-07-02 /pmc/articles/PMC6032927/ /pubmed/29737628 http://dx.doi.org/10.1002/anie.201803931 Text en © 2018 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
spellingShingle | Communications Oshima, Takayoshi Ichibha, Tom Qin, Ken Sinkou Muraoka, Kanemichi Vequizo, Junie Jhon M. Hibino, Keisuke Kuriki, Ryo Yamashita, Shunsuke Hongo, Kenta Uchiyama, Tomoki Fujii, Kotaro Lu, Daling Maezono, Ryo Yamakata, Akira Kato, Hideki Kimoto, Koji Yashima, Masatomo Uchimoto, Yoshiharu Kakihana, Masato Ishitani, Osamu Kageyama, Hiroshi Maeda, Kazuhiko Undoped Layered Perovskite Oxynitride Li(2)LaTa(2)O(6)N for Photocatalytic CO(2) Reduction with Visible Light |
title | Undoped Layered Perovskite Oxynitride Li(2)LaTa(2)O(6)N for Photocatalytic CO(2) Reduction with Visible Light |
title_full | Undoped Layered Perovskite Oxynitride Li(2)LaTa(2)O(6)N for Photocatalytic CO(2) Reduction with Visible Light |
title_fullStr | Undoped Layered Perovskite Oxynitride Li(2)LaTa(2)O(6)N for Photocatalytic CO(2) Reduction with Visible Light |
title_full_unstemmed | Undoped Layered Perovskite Oxynitride Li(2)LaTa(2)O(6)N for Photocatalytic CO(2) Reduction with Visible Light |
title_short | Undoped Layered Perovskite Oxynitride Li(2)LaTa(2)O(6)N for Photocatalytic CO(2) Reduction with Visible Light |
title_sort | undoped layered perovskite oxynitride li(2)lata(2)o(6)n for photocatalytic co(2) reduction with visible light |
topic | Communications |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6032927/ https://www.ncbi.nlm.nih.gov/pubmed/29737628 http://dx.doi.org/10.1002/anie.201803931 |
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