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Solar-Driven Simultaneous Electrochemical CO 2 Reduction and Water Oxidation Using Perovskite Solar Cells

Author

Listed:
  • Jaehoon Chung

    (Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization (PVIC), University of Toledo, Toledo, OH 43606, USA)

  • Nam Joong Jeon

    (Division of Advanced Materials, Korea Research Institute of Chemical Technology, Daejeon 305-600, Korea)

  • Jun Hong Noh

    (School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Korea)

Abstract

The utilization of solar energy into electrochemical reduction systems has received considerable attention. Most of these attempts have been conducted in a single electrolyte without a membrane. Here, we report the system combined by the electrochemical CO 2 reduction on the Au dendrite electrode and the water oxidation on the Co-Pi electrode with a Nafion membrane. An efficient reduction of CO 2 to CO in the cathode using the proton from water oxidation in the anode is conducted using perovskite solar cells under 1 sun condition. The sustainable reaction condition is secured by balancing each reaction rate based on products analysis. Through this system, we collect reduction products such as CO and H 2 and oxidation product, O 2 , separately. Employing separation of each electrode system and series-connected perovskite solar cells, we achieve 8% of solar to fuel efficiency with 85% of CO selectivity under 1 sun illumination.

Suggested Citation

  • Jaehoon Chung & Nam Joong Jeon & Jun Hong Noh, 2021. "Solar-Driven Simultaneous Electrochemical CO 2 Reduction and Water Oxidation Using Perovskite Solar Cells," Energies, MDPI, vol. 15(1), pages 1-8, December.
    • Handle: RePEc:gam:jeners:v:15:y:2021:i:1:p:270-:d:715581
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    References listed on IDEAS

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    1. Jessica Marshall, 2014. "Solar energy: Springtime for the artificial leaf," Nature, Nature, vol. 510(7503), pages 22-24, June.
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