缩放比例
电化学
材料科学
化学
电极
物理化学
数学
几何学
作者
Kai Han,Ben C. Rowley,Maarten P. Schellekens,Sander J. T. Brugman,M. P. de Heer,Lucas Keyzer,Paul J. Corbett
出处
期刊:ACS energy letters
[American Chemical Society]
日期:2024-05-17
卷期号:9 (6): 2800-2806
被引量:2
标识
DOI:10.1021/acsenergylett.4c00936
摘要
The key challenges for the industrial electrolysis of CO2 into CO are the low CO2 conversion, restricted scale-up, and poor long-term operation. Systematic process design and electrolyzer engineering are essential for addressing these challenges and exploiting the full potential of commercial CO2 electrolysis. In this study, we employed a bipolar membrane (BPM) in a pressurized electrolyzer with a 25 cm2 active area to achieve a maximum FECO of 93% with a cell voltage of 3.5 V and a maximum CO2 single-pass conversion of 70% without detecting CO2 crossover. In addition, we upscaled the system active area from 5 to 250 cm2 and showed that this increase did not result in a loss of performance. In particular, the performance on the pressurized 100 cm2 electrolyzer established an average FECO of 85% with a CO2 single-pass conversion of 60% for over 120 h. This provides practical approaches for transitioning from laboratory-scale to industrial-scale electrolysis.
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