Partially Oxidized Sub-10 nm MnO Nanocrystals with High Activity for Water Oxidation Catalysis

The oxygen evolution reaction (OER) is considered a major bottleneck in the overall water electrolysis process. In this work, highly active manganese oxide nano-catalysts were synthesized via hot injection. Facile surface treatment generated Mn(III) species on monodisperse 10 nm MnO nanocrystals (NC...

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Autores principales: Jin, Kyoungsuk, Chu, Arim, Park, Jimin, Jeong, Donghyuk, Jerng, Sung Eun, Sim, Uk, Jeong, Hui-Yun, Lee, Chan Woo, Park, Yong-Sun, Yang, Ki Dong, Kumar Pradhan, Gajendra, Kim, Donghun, Sung, Nark-Eon, Hee Kim, Sun, Nam, Ki Tae
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4441116/
https://www.ncbi.nlm.nih.gov/pubmed/25998696
http://dx.doi.org/10.1038/srep10279
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author Jin, Kyoungsuk
Chu, Arim
Park, Jimin
Jeong, Donghyuk
Jerng, Sung Eun
Sim, Uk
Jeong, Hui-Yun
Lee, Chan Woo
Park, Yong-Sun
Yang, Ki Dong
Kumar Pradhan, Gajendra
Kim, Donghun
Sung, Nark-Eon
Hee Kim, Sun
Nam, Ki Tae
author_facet Jin, Kyoungsuk
Chu, Arim
Park, Jimin
Jeong, Donghyuk
Jerng, Sung Eun
Sim, Uk
Jeong, Hui-Yun
Lee, Chan Woo
Park, Yong-Sun
Yang, Ki Dong
Kumar Pradhan, Gajendra
Kim, Donghun
Sung, Nark-Eon
Hee Kim, Sun
Nam, Ki Tae
author_sort Jin, Kyoungsuk
collection PubMed
description The oxygen evolution reaction (OER) is considered a major bottleneck in the overall water electrolysis process. In this work, highly active manganese oxide nano-catalysts were synthesized via hot injection. Facile surface treatment generated Mn(III) species on monodisperse 10 nm MnO nanocrystals (NCs). Size dependency of MnO NCs on OER activity was also investigated. Surprisingly, the partially oxidized MnO NCs only required 530 mV @ 5 mA cm(−2) under near neutral conditions.
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spelling pubmed-44411162015-05-29 Partially Oxidized Sub-10 nm MnO Nanocrystals with High Activity for Water Oxidation Catalysis Jin, Kyoungsuk Chu, Arim Park, Jimin Jeong, Donghyuk Jerng, Sung Eun Sim, Uk Jeong, Hui-Yun Lee, Chan Woo Park, Yong-Sun Yang, Ki Dong Kumar Pradhan, Gajendra Kim, Donghun Sung, Nark-Eon Hee Kim, Sun Nam, Ki Tae Sci Rep Article The oxygen evolution reaction (OER) is considered a major bottleneck in the overall water electrolysis process. In this work, highly active manganese oxide nano-catalysts were synthesized via hot injection. Facile surface treatment generated Mn(III) species on monodisperse 10 nm MnO nanocrystals (NCs). Size dependency of MnO NCs on OER activity was also investigated. Surprisingly, the partially oxidized MnO NCs only required 530 mV @ 5 mA cm(−2) under near neutral conditions. Nature Publishing Group 2015-05-22 /pmc/articles/PMC4441116/ /pubmed/25998696 http://dx.doi.org/10.1038/srep10279 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
Jin, Kyoungsuk
Chu, Arim
Park, Jimin
Jeong, Donghyuk
Jerng, Sung Eun
Sim, Uk
Jeong, Hui-Yun
Lee, Chan Woo
Park, Yong-Sun
Yang, Ki Dong
Kumar Pradhan, Gajendra
Kim, Donghun
Sung, Nark-Eon
Hee Kim, Sun
Nam, Ki Tae
Partially Oxidized Sub-10 nm MnO Nanocrystals with High Activity for Water Oxidation Catalysis
title Partially Oxidized Sub-10 nm MnO Nanocrystals with High Activity for Water Oxidation Catalysis
title_full Partially Oxidized Sub-10 nm MnO Nanocrystals with High Activity for Water Oxidation Catalysis
title_fullStr Partially Oxidized Sub-10 nm MnO Nanocrystals with High Activity for Water Oxidation Catalysis
title_full_unstemmed Partially Oxidized Sub-10 nm MnO Nanocrystals with High Activity for Water Oxidation Catalysis
title_short Partially Oxidized Sub-10 nm MnO Nanocrystals with High Activity for Water Oxidation Catalysis
title_sort partially oxidized sub-10 nm mno nanocrystals with high activity for water oxidation catalysis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4441116/
https://www.ncbi.nlm.nih.gov/pubmed/25998696
http://dx.doi.org/10.1038/srep10279
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