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Photovoltaic-Powered Electrochemical CO2 Reduction: Benchmarking against the Theoretical Limit AITranslate

Bingxin Liu; Lushan Ma; Hao Feng; Ying Zhang; Jingjing Duan; Yongjie Wang; Dong Liu; Qiang Li;
Nanjing University of Science and Technology; Nanjing University of Science and Technology; Nanjing University of Science and Technology; Nanjing University of Science and Technology; Nanjing University of Science and Technology; Harbin Institute of Technology; Nanjing University of Science and Technology; Nanjing University of Science and Technology
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Abstract AITranslate

In this work, benchmarking against the theoretical limit and against water splitting was used to indicate the promise of photovoltaic-powered electrochemical CO2 reduction. A benchmark device was built by the successful integration of high-performance cathode, anode, membrane-electrode-assembly reactor and dual-junction photoabsorber. This is the first report on dual-junction photoabsorber-driven CO2 electrolysis. We experimentally demonstrated a record-high solar-to-chemical energy conversion efficiency of 21.3% and a projected efficiency of 25.3%. This performance metric remarkably reaches 87% of the theoretical efficiency limit and surpasses the solar-to-hydrogen efficiency based on the same photoabsorber. This work paves the way for efficient solar fuel production with solar CO as the intermediate.

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DOI：https://doi.org/10.1021/acsenergylett.2c02906

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Citation Information:

In this work, benchmarking against the theoretical limit and against water splitting was used to indicate the promise of photovoltaic-powered electrochemical CO2 reduction. A benchmark device was built by the successful integration of high-performance cathode, anode, membrane-electrode-assembly reactor and dual-junction photoabsorber. This is the first report on dual-junction photoabsorber-driven CO2 electrolysis. We experimentally demonstrated a record-high solar-to-chemical energy conversion efficiency of 21.3% and a projected efficiency of 25.3%. This performance metric remarkably reaches 87% of the theoretical efficiency limit and surpasses the solar-to-hydrogen efficiency based on the same photoabsorber. This work paves the way for efficient solar fuel production with solar CO as the intermediate.

quote

GB/T 7714-2015 [1] Bingxin Liu, Lushan Ma, Hao Feng, et al. ACS Energy Letters, 2023(8). DOI:10.1021/acsenergylett.2c02906.
MLA [1] Bingxin Liu, et al., ACS Energy Letters, no. 8, 2023, https://doi.org/10.1021/acsenergylett.2c02906.
APA [1] Bingxin Liu, Lushan Ma, Hao Feng, Ying Zhang, Jingjing Duan, Yongjie Wang, Dong Liu, & Qiang Li. (2023). ACS Energy Letters(8). https://doi.org/10.1021/acsenergylett.2c02906
IEEE [1] Bingxin Liu, Lushan Ma, Hao Feng, Ying Zhang, Jingjing Duan, Yongjie Wang, Dong Liu, and Qiang Li, ACS Energy Letters, no. 8, 2023, doi: 10.1021/acsenergylett.2c02906.