Prolonged hydrogen production by engineered green algae photovoltaic power stations

Abstract Interest in securing energy production channels from renewable sources is higher than ever due to the daily observation of the impacts of climate change. A key renewable energy harvesting strategy achieving carbon neutral cycles is artificial photosynthesis. Solar-to-fuel routes thus far re...

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Main Authors: Hyo Jin Gwon, Geonwoo Park, JaeHyoung Yun, WonHyoung Ryu, Hyun S. Ahn
Format: Article
Language:English
Published: Nature Portfolio 2023-10-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-023-42529-3
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author Hyo Jin Gwon
Geonwoo Park
JaeHyoung Yun
WonHyoung Ryu
Hyun S. Ahn
author_facet Hyo Jin Gwon
Geonwoo Park
JaeHyoung Yun
WonHyoung Ryu
Hyun S. Ahn
author_sort Hyo Jin Gwon
collection DOAJ
description Abstract Interest in securing energy production channels from renewable sources is higher than ever due to the daily observation of the impacts of climate change. A key renewable energy harvesting strategy achieving carbon neutral cycles is artificial photosynthesis. Solar-to-fuel routes thus far relied on elaborately crafted semiconductors, undermining the cost-efficiency of the system. Furthermore, fuels produced required separation prior to utilization. As an artificial photosynthesis design, here we demonstrate the conversion of swimming green algae into photovoltaic power stations. The engineered algae exhibit bioelectrogenesis, en route to energy storage in hydrogen. Notably, fuel formation requires no additives or external bias other than CO2 and sunlight. The cellular power stations autoregulate the oxygen level during artificial photosynthesis, granting immediate utility of the photosynthetic hydrogen without separation. The fuel production scales linearly with the reactor volume, which is a necessary trait for contributing to the large-scale renewable energy portfolio.
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spelling doaj.art-04f207cac832465a90024860f25e84e62023-11-20T10:13:32ZengNature PortfolioNature Communications2041-17232023-10-011411910.1038/s41467-023-42529-3Prolonged hydrogen production by engineered green algae photovoltaic power stationsHyo Jin Gwon0Geonwoo Park1JaeHyoung Yun2WonHyoung Ryu3Hyun S. Ahn4Department of Chemistry, Yonsei UniversityDepartment of Chemistry, Yonsei UniversityDepartment of Mechanical engineering, Yonsei UniversityDepartment of Mechanical engineering, Yonsei UniversityDepartment of Chemistry, Yonsei UniversityAbstract Interest in securing energy production channels from renewable sources is higher than ever due to the daily observation of the impacts of climate change. A key renewable energy harvesting strategy achieving carbon neutral cycles is artificial photosynthesis. Solar-to-fuel routes thus far relied on elaborately crafted semiconductors, undermining the cost-efficiency of the system. Furthermore, fuels produced required separation prior to utilization. As an artificial photosynthesis design, here we demonstrate the conversion of swimming green algae into photovoltaic power stations. The engineered algae exhibit bioelectrogenesis, en route to energy storage in hydrogen. Notably, fuel formation requires no additives or external bias other than CO2 and sunlight. The cellular power stations autoregulate the oxygen level during artificial photosynthesis, granting immediate utility of the photosynthetic hydrogen without separation. The fuel production scales linearly with the reactor volume, which is a necessary trait for contributing to the large-scale renewable energy portfolio.https://doi.org/10.1038/s41467-023-42529-3
spellingShingle Hyo Jin Gwon
Geonwoo Park
JaeHyoung Yun
WonHyoung Ryu
Hyun S. Ahn
Prolonged hydrogen production by engineered green algae photovoltaic power stations
Nature Communications
title Prolonged hydrogen production by engineered green algae photovoltaic power stations
title_full Prolonged hydrogen production by engineered green algae photovoltaic power stations
title_fullStr Prolonged hydrogen production by engineered green algae photovoltaic power stations
title_full_unstemmed Prolonged hydrogen production by engineered green algae photovoltaic power stations
title_short Prolonged hydrogen production by engineered green algae photovoltaic power stations
title_sort prolonged hydrogen production by engineered green algae photovoltaic power stations
url https://doi.org/10.1038/s41467-023-42529-3
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AT jaehyoungyun prolongedhydrogenproductionbyengineeredgreenalgaephotovoltaicpowerstations
AT wonhyoungryu prolongedhydrogenproductionbyengineeredgreenalgaephotovoltaicpowerstations
AT hyunsahn prolongedhydrogenproductionbyengineeredgreenalgaephotovoltaicpowerstations