Scaled CO Electroreduction to Alcohols

IF 14.7 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Nature Communications Pub Date : 2025-05-29 DOI:10.1038/s41467-025-59180-9

Panagiotis Papangelakis, Colin P. O’Brien, Ali Shayesteh Zeraati, Shijie Liu, Alexander Paik, Vivian Nelson, Sungjin Park, Yurou Celine Xiao, Roham Dorakhan, Puhua Sun, Jinhong Wu, Christine M. Gabardo, Ning Wang, Rui Kai Miao, Edward H. Sargent, David Sinton

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Abstract

Electrocatalysis offers a promising route to convert CO₂ into alcohols, which is most efficient in a two-step cascade reaction with CO₂-to-CO followed by CO-to-alcohol. However, current alcohol-producing CO₂/CO electrolyzers suffer from low selectivity or alcohol crossover, resulting in alcohol concentrations of less than 1%, which are further diluted in downstream cold-traps. As a result, electrocatalytic alcohol production has yet to be scaled beyond the lab (1-10 cm²). Here, we reverse the electroosmotic drag of water using a cation exchange membrane assembly, enabling the recovery of over 85% of alcohol products at a concentration of 6 wt.%. We develop a multi-step condenser strategy to separate the produced alcohols from the effluent gas stream without dilution. Scaling up this approach to an 800 cm² cell resulted in an output of 200 mL alcohol/day.

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CO电还原制醇

电催化为将CO2转化为醇提供了一种很有前途的途径，该途径在CO2- co - CO-to-alcohol的两步级联反应中效率最高。然而，目前生产酒精的CO2/CO电解槽存在选择性低或酒精交叉的问题，导致酒精浓度低于1%，在下游冷阱中进一步稀释。因此，电催化酒精生产尚未超出实验室（1-10平方厘米）的规模。在这里，我们使用阳离子交换膜组件逆转水的电渗透阻力，使浓度为6 wt.%的酒精产品的回收率超过85%。我们开发了一种多步冷凝器策略，以分离生产的酒精从流出气流而不稀释。将这种方法扩大到800平方厘米的细胞，结果是每天输出200毫升酒精。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nature Communications Biological Science Disciplines-

CiteScore

24.90

自引率

2.40%

发文量

6928

审稿时长

3.7 months

期刊介绍： Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.