Toward a Low-Cost Artificial Leaf: Driving Carbon-Based and Bifunctional Catalyst Electrodes with Solution-Processed Perovskite Photovoltaics. Sharifi, T., Larsen, C., Wang, J., Kwong, W. L., Gracia-Espino, E., Mercier, G., Messinger, J., Wågberg, T., & Edman, L. Advanced Energy Materials, 6(20):1600738, 2016. _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/aenm.201600738![Toward a Low-Cost Artificial Leaf: Driving Carbon-Based and Bifunctional Catalyst Electrodes with Solution-Processed Perovskite Photovoltaics [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex 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 H2 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.
@article{sharifi_toward_2016,
title = {Toward a {Low}-{Cost} {Artificial} {Leaf}: {Driving} {Carbon}-{Based} and {Bifunctional} {Catalyst} {Electrodes} with {Solution}-{Processed} {Perovskite} {Photovoltaics}},
volume = {6},
copyright = {© 2016 The Authors. Published by WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim},
issn = {1614-6840},
shorttitle = {Toward a {Low}-{Cost} {Artificial} {Leaf}},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/aenm.201600738},
doi = {10.1002/aenm.201600738},
abstract = {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 H2 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.},
language = {en},
number = {20},
urldate = {2024-12-10},
journal = {Advanced Energy Materials},
author = {Sharifi, Tiva and Larsen, Christian and Wang, Jia and Kwong, Wai Ling and Gracia-Espino, Eduardo and Mercier, Guillaume and Messinger, Johannes and Wågberg, Thomas and Edman, Ludvig},
year = {2016},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/aenm.201600738},
keywords = {artificial-leaf devices, bifunctional electrocatalyst, carbon paper, nitrogen-doped carbon nanotubes, perovskite photovoltaics},
pages = {1600738},
}
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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 H2 evolution efficiency of 100%, and a solar-to-hydrogen conversion efficiency of 6.2%. 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