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Toward a Low-Cost A...
Toward a Low-Cost Artificial Leaf : Driving Carbon-Based and Bifunctional Catalyst Electrodes with Solution-Processed Perovskite Photovoltaics
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- Sharifi, Tiva (författare)
- Umeå universitet,Institutionen för fysik,Umea Univ, Dept Phys, S-90187 Umea, Sweden.
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- Larsen, Christian (författare)
- Umeå universitet,Institutionen för fysik,Umea Univ, Dept Phys, S-90187 Umea, Sweden.
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- Wang, Jia (författare)
- Umeå universitet,Institutionen för fysik,Umea Univ, Dept Phys, S-90187 Umea, Sweden.
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- Kwong, Wai Ling (författare)
- Umeå universitet,Kemiska institutionen,Umea Univ, Dept Chem, S-90187 Umea, Sweden.
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- Gracia-Espino, Eduardo (författare)
- Umeå universitet,Institutionen för fysik,Umea Univ, Dept Phys, S-90187 Umea, Sweden.
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- Mercier, Guillaume (författare)
- Umeå universitet,Institutionen för fysik,Umea Univ, Dept Phys, S-90187 Umea, Sweden.
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- Messinger, Johannes (författare)
- Umeå universitet,Kemiska institutionen,Umea Univ, Dept Chem, S-90187 Umea, Sweden.
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- Wågberg, Thomas (författare)
- Umeå universitet,Institutionen för fysik,Umea Univ, Dept Phys, S-90187 Umea, Sweden.
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- Edman, Ludvig (författare)
- Umeå universitet,Institutionen för fysik,Umea Univ, Dept Phys, S-90187 Umea, Sweden.
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(creator_code:org_t)
- 2016-07-19
- 2016
- Engelska.
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Ingår i: Advanced Energy Materials. - : Wiley-Blackwell. - 1614-6832 .- 1614-6840. ; 6:20, s. 1-10
- Relaterad länk:
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://doi.org/10.1...
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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
- Molecular hydrogen can be generated renewably by water splitting with an artificial-leaf device, which essentially comprises two electrocatalyst electrodes immersed in water and powered by photovoltaics. Ideally, this device should operate efficiently and be fabricated with cost-efficient means using earth-abundant materials. Here, a lightweight electrocatalyst electrode, comprising large surface-area NiCo2O4 nanorods that are firmly anchored onto a carbon-paper current collector via a dense network of nitrogen-doped carbon nanotubes is presented. This electrocatalyst electrode is bifunctional in that it can efficiently operate as both anode and cathode in the same alkaline solution, as quantified by a delivered current density of 10 mA cm(-2) at an overpotential of 400 mV for each of the oxygen and hydrogen evolution reactions. By driving two such identical electrodes with a solution-processed thin-film perovskite photovoltaic assembly, a wired artificial-leaf device is obtained that features a Faradaic H-2 evolution efficiency of 100%, and a solar-to-hydrogen conversion efficiency of 6.2%. A detailed cost analysis is presented, which implies that the material-payback time of this device is of the order of 100 days.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
Nyckelord
- artificial-leaf devices
- bifunctional electrocatalyst
- carbon paper
- nitrogen-doped carbon nanotubes
- perovskite photovoltaics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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