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Electrocatalytic Wa...
Electrocatalytic Water Oxidation Promoted by 3 D Nanoarchitectured Turbostratic Δ-MnOx on Carbon Nanotubes
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- Zhang, Biaobiao (författare)
- KTH,Kemi,KTH Royal Institute of Technology, Stockholm, Sweden,Department of Chemistry
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- Li, Yuanyuan (författare)
- KTH,Fiber- och polymerteknologi,KTH Royal Institute of Technology, Stockholm, Sweden,Department of Fibre and Polymer Technology
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- Valvo, Mario (författare)
- Uppsala universitet,Strukturkemi
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- Fan, Lizhou (författare)
- KTH,Kemi,KTH Royal Institute of Technology, Stockholm, Sweden,Department of Chemistry
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- Daniel, Quentin (författare)
- KTH,Kemi,KTH Royal Institute of Technology, Stockholm, Sweden,Department of Chemistry
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- Zhang, Peili (författare)
- KTH,Kemi,KTH Royal Institute of Technology, Stockholm, Sweden,Department of Chemistry
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- Wang, Linqin (författare)
- KTH,Kemi,KTH Royal Institute of Technology, Stockholm, Sweden,Department of Chemistry
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- Sun, Licheng, 1962- (författare)
- KTH,Kemi,KTH Royal Institute of Technology, Stockholm, Sweden; Dalian University of Technology, Dalian, China,Department of Chemistry
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(creator_code:org_t)
- 2017-07-20
- 2017
- Engelska.
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Ingår i: ChemSusChem. - : Wiley-VCH Verlag. - 1864-5631 .- 1864-564X. ; 10:22, s. 4472-4478
- Relaterad länk:
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https://onlinelibrar...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The development of manganese-based water oxidation electrocatalysts is desirable for the production of solar fuels, as manganese is earth-abundant, inexpensive, non-toxic, and has been employed by the Photosystem II in nature for a billion years. Herein, we directly constructed a 3 D nanoarchitectured turbostratic δ-MnOx on carbon nanotube-modified nickel foam (MnOx/CNT/NF) by electrodeposition and a subsequent annealing process. The MnOx/CNT/NF electrode gives a benchmark catalytic current density (10 mA cm−2) at an overpotential (η) of 270 mV under alkaline conditions. A steady current density of 19 mA cm−2 is obtained during electrolysis at 1.53 V for 1.0 h. To the best of our knowledge, this work represents the most efficient manganese-oxide-based water oxidation electrode and demonstrates that manganese oxides, as a structural and functional model of oxygen-evolving complex (OEC) in Photosystem II, can also become comparable to those of most Ni- and Co-based catalysts.
Ämnesord
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Nyckelord
- artificial photosynthesis
- electrochemistry
- manganese
- turbostratic manganese oxide
- water oxidation
- Carbon
- Carbon nanotubes
- Electrocatalysts
- Electrodes
- Foams
- Nanotubes
- Nickel
- Oxidation
- Oxides
- Yarn
- Alkaline conditions
- Annealing process
- Catalytic current
- Co-based catalysts
- Oxygen-evolving complexes
- Turbostratic
- Manganese oxide
- carbon nanotube
- manganese derivative
- oxide
- water
- catalysis
- chemistry
- electrochemical analysis
- electrode
- molecular mimicry
- oxidation reduction reaction
- photosystem II
- procedures
- solar energy
- Electrochemical Techniques
- Manganese Compounds
- Nanotubes
- Carbon
- Oxidation-Reduction
- Photosystem II Protein Complex
- Kemi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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