Parallel experiments in electrochemical CO2 reduction enabled by standardized analytics

IF 42.8 1区化学 Q1 CHEMISTRY, PHYSICAL

Nature Catalysis Pub Date : 2024-06-26 DOI:10.1038/s41929-024-01172-x

Alessandro Senocrate, Francesco Bernasconi, Peter Kraus, Nukorn Plainpan, Jens Trafkowski, Fabian Tolle, Thomas Weber, Ulrich Sauter, Corsin Battaglia

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引用次数: 0

Abstract

Electrochemical CO2 reduction (eCO2R) is a promising strategy to transform detrimental CO2 emissions into sustainable fuels and chemicals. Key requirements for advancing this field are the development of analytical systems and of methods that are able to accurately and reproducibly assess the performance of catalysts, electrodes and electrolysers. Here we present a comprehensive analytical system for eCO2R based on commercial hardware, which captures data for >20 gas and liquid products with <5 min time resolution by chromatography, tracks gas flow rates, monitors electrolyser temperatures and flow pressures, and records electrolyser resistances and electrode surface areas. To complement the hardware, we develop an open-source software that automatically parses, aligns in time and post-processes the heterogeneous data, yielding quantities such as Faradaic efficiencies and corrected voltages. We showcase the system’s capabilities by performing measurements and data analysis on eight parallel electrolyser cells simultaneously. Electrocatalytic CO2 reduction powered by renewable electricity is a promising technology for sustainable fuel and chemical production but accurate and reproducible analytical methods are required to advance the basic and applied science. Here a comprehensive analytical system is designed to capture numerous operating parameters in real time with automated and standardized data analysis.

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利用标准化分析技术进行二氧化碳电化学还原平行实验

电化学二氧化碳还原（eCO2R）是将有害的二氧化碳排放转化为可持续燃料和化学品的一项前景广阔的战略。推动这一领域发展的关键要求是开发分析系统和方法，以准确、可重复地评估催化剂、电极和电解槽的性能。在此，我们介绍一种基于商用硬件的 eCO2R 综合分析系统，该系统通过色谱法以 5 分钟的时间分辨率捕获 20 种气体和液体产品的数据，跟踪气体流速，监控电解槽温度和流动压力，并记录电解槽电阻和电极表面积。作为硬件的补充，我们还开发了一款开源软件，可自动解析、及时对齐和后处理异构数据，生成法拉第效率和校正电压等量。我们通过同时对八个并联电解槽进行测量和数据分析，展示了该系统的能力。

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来源期刊

Nature Catalysis Chemical Engineering-Bioengineering

CiteScore

52.10

自引率

1.10%

发文量

140

期刊介绍： Nature Catalysis serves as a platform for researchers across chemistry and related fields, focusing on homogeneous catalysis, heterogeneous catalysis, and biocatalysts, encompassing both fundamental and applied studies. With a particular emphasis on advancing sustainable industries and processes, the journal provides comprehensive coverage of catalysis research, appealing to scientists, engineers, and researchers in academia and industry. Maintaining the high standards of the Nature brand, Nature Catalysis boasts a dedicated team of professional editors, rigorous peer-review processes, and swift publication times, ensuring editorial independence and quality. The journal publishes work spanning heterogeneous catalysis, homogeneous catalysis, and biocatalysis, covering areas such as catalytic synthesis, mechanisms, characterization, computational studies, nanoparticle catalysis, electrocatalysis, photocatalysis, environmental catalysis, asymmetric catalysis, and various forms of organocatalysis.