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Tunable metal hydro...
Tunable metal hydroxide-organic frameworks for catalysing oxygen evolution
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Yuan, Shuai (author)
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Peng, Jiayu (author)
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Cai, Bin (author)
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- Huang, Zhehao (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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Garcia-Esparza, Angel T. (author)
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Sokaras, Dimosthenis (author)
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Zhang, Yirui (author)
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Giordano, Livia (author)
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Akkiraju, Karthik (author)
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Zhu, Yun Guang (author)
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Hübner, René (author)
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- Zou, Xiaodong (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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Román-Leshkov, Yuriy (author)
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Shao-Horn, Yang (author)
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(creator_code:org_t)
- 2022-02-24
- 2022
- English.
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In: Nature Materials. - : Springer Science and Business Media LLC. - 1476-1122 .- 1476-4660. ; 21:6, s. 673-680
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- The oxygen evolution reaction is central to making chemicals and energy carriers using electrons. Combining the great tunability of enzymatic systems with known oxide-based catalysts can create breakthrough opportunities to achieve both high activity and stability. Here we report a series of metal hydroxide–organic frameworks (MHOFs) synthesized by transforming layered hydroxides into two-dimensional sheets crosslinked using aromatic carboxylate linkers. MHOFs act as a tunable catalytic platform for the oxygen evolution reaction, where the π–π interactions between adjacent stacked linkers dictate stability, while the nature of transition metals in the hydroxides modulates catalytic activity. Substituting Ni-based MHOFs with acidic cations or electron-withdrawing linkers enhances oxygen evolution reaction activity by over three orders of magnitude per metal site, with Fe substitution achieving a mass activity of 80 A g−1catalyst at 0.3 V overpotential for 20 h. Density functional theory calculations correlate the enhanced oxygen evolution reaction activity with the MHOF-based modulation of Ni redox and the optimized binding of oxygenated intermediates.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Yuan, Shuai
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Peng, Jiayu
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Cai, Bin
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Huang, Zhehao
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Garcia-Esparza, ...
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Sokaras, Dimosth ...
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show more...
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Zhang, Yirui
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Giordano, Livia
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Akkiraju, Karthi ...
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Zhu, Yun Guang
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Hübner, René
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Zou, Xiaodong
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Román-Leshkov, Y ...
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Shao-Horn, Yang
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
- Articles in the publication
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Nature Materials
- By the university
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Stockholm University