Modeling diurnal and annual ethylene generation from solar-driven electrochemical CO2 reduction devices,Energy & Environmental Science

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Modeling diurnal and annual ethylene generation from solar-driven electrochemical CO2 reduction devices
Energy & Environmental Science ( IF 32.5 ) Pub Date : 2024-02-29 , DOI: 10.1039/d4ee00545g
Kyra M. K. Yap _{1,

2} , William J. Wei _{3,

4} , Melanie Rodríguez Pabón _{1,

2} , Alex J. King _{3,

4} , Justin C. Bui _{3,

4} , Lingze Wei _{1,

2} , Sang-Won Lee _{1,

2} , Adam Z. Weber ₄ , Alexis T. Bell _{3,

4} , Adam C. Nielander ₂ , Thomas F. Jaramillo _{1,

2}

Affiliation

Integrated solar fuels devices for CO₂ reduction (CO₂R) are a promising technology class towards reducing carbon emissions. Designing integrated CO₂R solar fuels devices requires careful co-design of electrochemical and photovoltaic components as well as consideration of the diurnal and seasonal effects of solar irradiance, temperature, and other meteorological factors expected for ‘on-sun’ deployment. Using a photovoltaic-electrochemical (PV-EC) platform, we developed a temperature and potential-dependent diurnal and annual model using experimentally-determined CO₂R performance of Cu-based electrocatalysts, local meteorological data from the National Solar Radiation Database (NSRD), and modeled performance of commercial c-Si PVs. We simulated gaseous diurnal product outputs with and without the effects of ambient temperature. From these outputs, we observed seasonal variation in gaseous product generation, with up to two-fold increases in ethylene productivity between the Winter and Summer, analyzed the consequences of dynamic cloud coverage, and identified periods where device cooling/heating mechanisms could be implemented to maximize ethylene generation. Finally, we modeled the annual ethylene generation for a scaled 1 MW solar farm at three different locations (Beijing, CN; Sydney, AUS; Barstow, CA) to determine the consequences of local meteorological climates on PV-EC CO₂R product output, recording a maximum ethylene output of 18.5 tonne per year at Barstow. Overall, this model presents a critical tool for streamlining the translation of experimental solar-driven electrochemical research to real-world implementation.

更新日期：2024-03-01

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