Durable CO2 conversion in the proton-exchange membrane system

Fang，Wensheng1; Guo，Wei1; Lu，Ruihu2; Yan，Ya3; Liu，Xiaokang4; Wu，Dan4; Li，Fu Min1; Zhou，Yansong1; He，Chaohui1; Xia，Chenfeng1; Niu，Huiting1; Wang，Sicong4; Liu，Youwen5; Mao，Yu2; Zhang，Chengyi2; You，Bo1; Pang，Yuanjie6; Duan，Lele7; Yang，Xuan1; Song，Fei8; Zhai，Tianyou5; Wang，Guoxiong9; Guo，Xingpeng1; Tan，Bien1; Yao，Tao4; Wang，Ziyun2; Xia，Bao Yu1

2024-02-01

10.1038/s41586-023-06917-5

Nature   影响因子和分区

0028-0836

1476-4687

Electrolysis that reduces carbon dioxide (CO) to useful chemicals can, in principle, contribute to a more sustainable and carbon-neutral future. However, it remains challenging to develop this into a robust process because efficient conversion typically requires alkaline conditions in which CO precipitates as carbonate, and this limits carbon utilization and the stability of the system. Strategies such as physical washing, pulsed operation and the use of dipolar membranes can partially alleviate these problems but do not fully resolve them. CO electrolysis in acid electrolyte, where carbonate does not form, has therefore been explored as an ultimately more workable solution. Herein we develop a proton-exchange membrane system that reduces CO to formic acid at a catalyst that is derived from waste lead–acid batteries and in which a lattice carbon activation mechanism contributes. When coupling CO reduction with hydrogen oxidation, formic acid is produced with over 93% Faradaic efficiency. The system is compatible with start-up/shut-down processes, achieves nearly 91% single-pass conversion efficiency for CO at a current density of 600 mA cm and cell voltage of 2.2 V and is shown to operate continuously for more than 5,200 h. We expect that this exceptional performance, enabled by the use of a robust and efficient catalyst, stable three-phase interface and durable membrane, will help advance the development of carbon-neutral technologies.

SCI

英语

其他

BIOLOGY & BIOCHEMISTRY ; CLINICAL MEDICINE ; MULTIDISCIPLINARY ; PLANT & ANIMAL SCIENCE ; ENVIRONMENT/ECOLOGY ; SOCIAL SCIENCES, GENERAL ; MICROBIOLOGY ; ECONOMICS BUSINESS ; IMMUNOLOGY ; MATERIALS SCIENCE ; COMPUTER SCIENCE ; SPACE SCIENCE ; MOLECULAR BIOLOGY & GENETICS ; CHEMISTRY ; NEUROSCIENCE & BEHAVIOR ; PHYSICS ; GEOSCIENCES ; ENGINEERING

2-s2.0-85183700868

Scopus

1.School of Chemistry and Chemical Engineering,State Key Laboratory of Materials Processing and Die & Mould Technology,Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education),Hubei Key Laboratory of Material Chemistry and Service Failure,Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan,China
2.School of Chemical Sciences,University of Auckland,Auckland,New Zealand
3.CAS Key Laboratory of Materials for Energy Conversion,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai,China
4.National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei,China
5.State Key Laboratory of Materials Processing and Die & Mould Technology and School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan,China
6.School of Optical and Electronic Information,Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan,China
7.Department of Chemistry and Shenzhen Grubbs Institute,Southern University of Science and Technology,Shenzhen,China
8.Shanghai Synchrotron Radiation Facility,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai,China
9.State Key Laboratory of Catalysis,Dalian National Laboratory for Clean Energy,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian,China

Fang，Wensheng,Guo，Wei,Lu，Ruihu,et al. Durable CO2 conversion in the proton-exchange membrane system[J]. Nature,2024,626(7997):86-91.

Fang，Wensheng.,Guo，Wei.,Lu，Ruihu.,Yan，Ya.,Liu，Xiaokang.,...&Xia，Bao Yu.(2024).Durable CO2 conversion in the proton-exchange membrane system.Nature,626(7997),86-91.

Fang，Wensheng,et al."Durable CO2 conversion in the proton-exchange membrane system".Nature 626.7997(2024):86-91.