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A bio-inspired coor...
A bio-inspired coordination polymer as outstanding water oxidation catalyst via second coordination sphere engineering
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- Li, Wenlong (author)
- Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem,Inst Energy Sci & Technol, Dalian 116024, Peoples R China.
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- Li, Fusheng (author)
- Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem,Inst Energy Sci & Technol, Dalian 116024, Peoples R China.
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- Yang, Hao (author)
- Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem,Inst Energy Sci & Technol, Dalian 116024, Peoples R China.
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- Wu, Xiujuan (author)
- Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem,Inst Energy Sci & Technol, Dalian 116024, Peoples R China.
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- Zhang, Peili (author)
- Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem,Inst Energy Sci & Technol, Dalian 116024, Peoples R China.
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- Shan, Yu (author)
- Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem,Inst Energy Sci & Technol, Dalian 116024, Peoples R China.
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- Sun, Licheng, 1962- (author)
- KTH,Kemi
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Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem,Inst Energy Sci & Technol, Dalian 116024, Peoples R China Kemi (creator_code:org_t)
- 2019-11-07
- 2019
- English.
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In: Nature Communications. - : NATURE PUBLISHING GROUP. - 2041-1723. ; 10
- Related links:
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https://www.nature.c...
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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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- First-row transition metal-based catalysts have been developed for the oxygen evolution reaction (OER) during the past years, however, such catalysts typically operate at overpotentials (eta) significantly above thermodynamic requirements. Here, we report an iron/ nickel terephthalate coordination polymer on nickel form (NiFeCP/NF) as catalyst for OER, in which both coordinated and uncoordinated carboxylates were maintained after electrolysis. NiFeCP/NF exhibits outstanding electro-catalytic OER activity with a low overpotential of 188 mV at 10 mA cm(-2) in 1.0 KOH, with a small Tafel slope and excellent stability. The pH-independent OER activity of NiFeCP/NF on the reversible hydrogen electrode scale suggests that a concerted proton-coupled electron transfer (c-PET) process is the rate-determining step (RDS) during water oxidation. Deuterium kinetic isotope effects, proton inventory studies and atom-proton-transfer measurements indicate that the uncoordinated carboxylates are serving as the proton transfer relays, with a similar function as amino acid residues in photosystem II (PSII), accelerating the proton-transfer rate.
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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