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arXiv · 2204.04971

A new artificial photosynthetic system coupling photovoltaic electrocatalysis with photothermal catalysis

Yaguang Li·Fanqi Meng·Xianhua Bai·Dachao Yuan·Xingyuan San·Baolai Liang·Guangsheng Fu·Shufang Wang·Lin Gu·Qingbo Meng
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Abstract

In this work, we present a novel artificial photosynthetic paradigm with square meter (m2) level scalable production by integrating photovoltaic electrolytic water splitting device and solar heating CO2 hydrogenation device, successfully achieving the synergy of 1 sun driven 19.4% solar to chemical energy efficiency (STC) for CO production (2.7 times higher than state of the art of large-sized artificial photosynthetic systems) with a low cost (equivalent to 1/7 of reported artificial photosynthetic systems). Furthermore, the outdoor artificial photosynthetic demonstration with 1.268 m2 of scale exhibits the CO generation amount of 258.4 L per day, the STC of ~15.5% for CO production in winter, which could recover the cost within 833 suuny days of operation by selling CO.

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Yaguang Li, Fanqi Meng, Xianhua Bai, Dachao Yuan, Xingyuan San, Baolai Liang, Guangsheng Fu, Shufang Wang, Lin Gu, Qingbo Meng. 2022-04-11. A new artificial photosynthetic system coupling photovoltaic electrocatalysis with photothermal catalysis. https://arxiv.org/abs/2204.04971

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