Solar-Driven Water Splitting at 13.8% Solar-to-Hydrogen Efficiency by an Earth-Abundant Electrolyzer. Ekspong, J., Larsen, C., Stenberg, J., Kwong, W. L., Wang, J., Zhang, J., Johansson, E. M. J., Messinger, J., Edman, L., & Wågberg, T. ACS Sustainable Chemistry & Engineering, 9(42):14070–14078, October, 2021. Publisher: American Chemical Society![Solar-Driven Water Splitting at 13.8% Solar-to-Hydrogen Efficiency by an Earth-Abundant Electrolyzer [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex We present the synthesis and characterization of an efficient and low cost solar-driven electrolyzer consisting of Earth-abundant materials. The trimetallic NiFeMo electrocatalyst takes the shape of nanometer-sized flakes anchored to a fully carbon-based current collector comprising a nitrogen-doped carbon nanotube network, which in turn is grown on a carbon fiber paper support. This catalyst electrode contains solely Earth-abundant materials, and the carbon fiber support renders it effective despite a low metal content. Notably, a bifunctional catalyst–electrode pair exhibits a low total overpotential of 450 mV to drive a full water-splitting reaction at a current density of 10 mA cm–2 and a measured hydrogen Faradaic efficiency of ∼100%. We combine the catalyst–electrode pair with solution-processed perovskite solar cells to form a lightweight solar-driven water-splitting device with a high peak solar-to-fuel conversion efficiency of 13.8%.
@article{ekspong_solar-driven_2021,
title = {Solar-{Driven} {Water} {Splitting} at 13.8\% {Solar}-to-{Hydrogen} {Efficiency} by an {Earth}-{Abundant} {Electrolyzer}},
volume = {9},
url = {https://doi.org/10.1021/acssuschemeng.1c03565},
doi = {10.1021/acssuschemeng.1c03565},
abstract = {We present the synthesis and characterization of an efficient and low cost solar-driven electrolyzer consisting of Earth-abundant materials. The trimetallic NiFeMo electrocatalyst takes the shape of nanometer-sized flakes anchored to a fully carbon-based current collector comprising a nitrogen-doped carbon nanotube network, which in turn is grown on a carbon fiber paper support. This catalyst electrode contains solely Earth-abundant materials, and the carbon fiber support renders it effective despite a low metal content. Notably, a bifunctional catalyst–electrode pair exhibits a low total overpotential of 450 mV to drive a full water-splitting reaction at a current density of 10 mA cm–2 and a measured hydrogen Faradaic efficiency of ∼100\%. We combine the catalyst–electrode pair with solution-processed perovskite solar cells to form a lightweight solar-driven water-splitting device with a high peak solar-to-fuel conversion efficiency of 13.8\%.},
number = {42},
urldate = {2024-10-16},
journal = {ACS Sustainable Chemistry \& Engineering},
author = {Ekspong, Joakim and Larsen, Christian and Stenberg, Jonas and Kwong, Wai Ling and Wang, Jia and Zhang, Jinbao and Johansson, Erik M. J. and Messinger, Johannes and Edman, Ludvig and Wågberg, Thomas},
month = oct,
year = {2021},
note = {Publisher: American Chemical Society},
pages = {14070--14078},
}
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The trimetallic NiFeMo electrocatalyst takes the shape of nanometer-sized flakes anchored to a fully carbon-based current collector comprising a nitrogen-doped carbon nanotube network, which in turn is grown on a carbon fiber paper support. This catalyst electrode contains solely Earth-abundant materials, and the carbon fiber support renders it effective despite a low metal content. Notably, a bifunctional catalyst–electrode pair exhibits a low total overpotential of 450 mV to drive a full water-splitting reaction at a current density of 10 mA cm–2 and a measured hydrogen Faradaic efficiency of ∼100%. 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The trimetallic NiFeMo electrocatalyst takes the shape of nanometer-sized flakes anchored to a fully carbon-based current collector comprising a nitrogen-doped carbon nanotube network, which in turn is grown on a carbon fiber paper support. This catalyst electrode contains solely Earth-abundant materials, and the carbon fiber support renders it effective despite a low metal content. Notably, a bifunctional catalyst–electrode pair exhibits a low total overpotential of 450 mV to drive a full water-splitting reaction at a current density of 10 mA cm–2 and a measured hydrogen Faradaic efficiency of ∼100\\%. 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