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Fe-substituted coba...
Fe-substituted cobalt-phosphate polyoxometalates as enhanced oxygen evolution catalysts in acidic media
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Han, Xin-Bao (author)
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Wang, Dong-Xue (author)
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- Gracia-Espino, Eduardo (author)
- Umeå universitet,Institutionen för fysik
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Luo, Yu-Hui (author)
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Tan, Yuan-Zhi (author)
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Lu, Dong-Fei (author)
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Li, Yang-Guang (author)
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- Wågberg, Thomas, 1971- (author)
- Umeå universitet,Institutionen för fysik
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Wang, En-Bo (author)
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Zheng, Lan-Sun (author)
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(creator_code:org_t)
- Science Press, 2020
- 2020
- English.
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In: Cuihuà xuébào. - : Science Press. - 0253-9837 .- 1872-2067. ; 41:5, s. 853-857
- 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
Subject headings
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- All-inorganic and earth-abundant bi-/trimetallic hydr(oxy)oxides are widely used as oxygen evolution electrocatalysts owing to their remarkable performance. However, their atomically precise structures remain undefined, complicating their optimization and limiting the understanding of their enhanced performance. Here, the underlying structure-property correlation is explored by using a well-defined cobalt-phosphate polyoxometalate cluster [{Co-4(OH)(3)(PO4)}(4)(SiW9O34)(4)](32-) (1), which may serve as a molecular model of multimetal hydr(oxy)oxides. The catalytic activity is enhanced upon replacing Co by Fe in 1, resulting in a reduced overpotential (385 mV) for oxygen evolution (by 66 mV) compared to that of the parent 1 at 10 mA cm(-2) in an acidic medium; this overpotential is comparable to that for the IrO2 catalyst. These abundant-metal-based polyoxometalates exhibit high stability, with no evidence of degradation even after 24 h of operation.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Annan kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Other Chemical Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Colbalt-phosphate
- Polyoxometalate
- Oxygen evolution reaction
- Isostructural substitution
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Han, Xin-Bao
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Wang, Dong-Xue
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Gracia-Espino, E ...
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Luo, Yu-Hui
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Tan, Yuan-Zhi
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Lu, Dong-Fei
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show more...
-
Li, Yang-Guang
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Wågberg, Thomas, ...
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Wang, En-Bo
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Zheng, Lan-Sun
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show less...
- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Chemical Enginee ...
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and Other Chemical E ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Cuihuà xuébào
- By the university
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Umeå University