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Constructing nickel–iron oxyhydroxides integrated with iron oxides by microorganism corrosion for oxygen evolution
Developing facile approaches for preparing efficient electrocatalysts is of significance to promote sustainable energy technologies. Here, we report a facile iron-oxidizing bacteria corrosion approach to construct a composite electrocatalyst of nickel–iron oxyhydroxides combined with iron oxides. Th...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Academy of Sciences
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9171921/ https://www.ncbi.nlm.nih.gov/pubmed/35533282 http://dx.doi.org/10.1073/pnas.2202812119 |
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author | Yang, Huan Dong, Chungli Wang, Hongming Qi, Ruijuan Gong, Lanqian Lu, Yingrui He, Chaohui Chen, Shenghua You, Bo Liu, Hongfang Yao, Junlong Jiang, Xueliang Guo, Xingpeng Xia, Bao Yu |
author_facet | Yang, Huan Dong, Chungli Wang, Hongming Qi, Ruijuan Gong, Lanqian Lu, Yingrui He, Chaohui Chen, Shenghua You, Bo Liu, Hongfang Yao, Junlong Jiang, Xueliang Guo, Xingpeng Xia, Bao Yu |
author_sort | Yang, Huan |
collection | PubMed |
description | Developing facile approaches for preparing efficient electrocatalysts is of significance to promote sustainable energy technologies. Here, we report a facile iron-oxidizing bacteria corrosion approach to construct a composite electrocatalyst of nickel–iron oxyhydroxides combined with iron oxides. The obtained electrocatalyst shows improved electrocatalytic activity and stability for oxygen evolution, with an overpotential of ∼230 mV to afford the current density of 10 mA cm(−2). The incorporation of iron oxides produced by iron-oxidizing bacteria corrosion optimizes the electronic structure of nickel–iron oxyhydroxide electrodes, which accounts for the decreased free energy of oxygenate generation and the improvement of OER activity. This work demonstrates a natural bacterial corrosion approach for the facile preparation of efficient electrodes for water oxidation, which may provide interesting insights in the multidisciplinary integration of innovative nanomaterials and emerging energy technologies. |
format | Online Article Text |
id | pubmed-9171921 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | National Academy of Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-91719212022-11-15 Constructing nickel–iron oxyhydroxides integrated with iron oxides by microorganism corrosion for oxygen evolution Yang, Huan Dong, Chungli Wang, Hongming Qi, Ruijuan Gong, Lanqian Lu, Yingrui He, Chaohui Chen, Shenghua You, Bo Liu, Hongfang Yao, Junlong Jiang, Xueliang Guo, Xingpeng Xia, Bao Yu Proc Natl Acad Sci U S A Physical Sciences Developing facile approaches for preparing efficient electrocatalysts is of significance to promote sustainable energy technologies. Here, we report a facile iron-oxidizing bacteria corrosion approach to construct a composite electrocatalyst of nickel–iron oxyhydroxides combined with iron oxides. The obtained electrocatalyst shows improved electrocatalytic activity and stability for oxygen evolution, with an overpotential of ∼230 mV to afford the current density of 10 mA cm(−2). The incorporation of iron oxides produced by iron-oxidizing bacteria corrosion optimizes the electronic structure of nickel–iron oxyhydroxide electrodes, which accounts for the decreased free energy of oxygenate generation and the improvement of OER activity. This work demonstrates a natural bacterial corrosion approach for the facile preparation of efficient electrodes for water oxidation, which may provide interesting insights in the multidisciplinary integration of innovative nanomaterials and emerging energy technologies. National Academy of Sciences 2022-05-09 2022-05-17 /pmc/articles/PMC9171921/ /pubmed/35533282 http://dx.doi.org/10.1073/pnas.2202812119 Text en Copyright © 2022 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
spellingShingle | Physical Sciences Yang, Huan Dong, Chungli Wang, Hongming Qi, Ruijuan Gong, Lanqian Lu, Yingrui He, Chaohui Chen, Shenghua You, Bo Liu, Hongfang Yao, Junlong Jiang, Xueliang Guo, Xingpeng Xia, Bao Yu Constructing nickel–iron oxyhydroxides integrated with iron oxides by microorganism corrosion for oxygen evolution |
title | Constructing nickel–iron oxyhydroxides integrated with iron oxides by microorganism corrosion for oxygen evolution |
title_full | Constructing nickel–iron oxyhydroxides integrated with iron oxides by microorganism corrosion for oxygen evolution |
title_fullStr | Constructing nickel–iron oxyhydroxides integrated with iron oxides by microorganism corrosion for oxygen evolution |
title_full_unstemmed | Constructing nickel–iron oxyhydroxides integrated with iron oxides by microorganism corrosion for oxygen evolution |
title_short | Constructing nickel–iron oxyhydroxides integrated with iron oxides by microorganism corrosion for oxygen evolution |
title_sort | constructing nickel–iron oxyhydroxides integrated with iron oxides by microorganism corrosion for oxygen evolution |
topic | Physical Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9171921/ https://www.ncbi.nlm.nih.gov/pubmed/35533282 http://dx.doi.org/10.1073/pnas.2202812119 |
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