Polymer‐Supported Liquid Layer Electrolyzer Enabled Electrochemical CO2 Reduction to CO with High Energy Efficiency
Shangyu Li,
Yiwen Ma,
Tiancheng Zhao,
Jiaxin Li,
Xinyue Kang,
Wen Guo,
Yunzhou Wen,
Liping Wang,
Yurui Wang,
Renxing Lin,
Tiantian Li,
Prof. Hairen Tan,
Prof. Huisheng Peng,
Prof. Bo Zhang
Affiliations
Shangyu Li
State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University 200438 Shanghai P. R. China
Yiwen Ma
State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University 200438 Shanghai P. R. China
Tiancheng Zhao
State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University 200438 Shanghai P. R. China
Jiaxin Li
State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University 200438 Shanghai P. R. China
Xinyue Kang
State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University 200438 Shanghai P. R. China
Wen Guo
State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University 200438 Shanghai P. R. China
Yunzhou Wen
State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University 200438 Shanghai P. R. China
Liping Wang
State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University 200438 Shanghai P. R. China
Yurui Wang
National Laboratory of Solid State Microstructures Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied Science Nanjing University 210093 Jiangsu P. R. China
Renxing Lin
National Laboratory of Solid State Microstructures Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied Science Nanjing University 210093 Jiangsu P. R. China
Tiantian Li
National Laboratory of Solid State Microstructures Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied Science Nanjing University 210093 Jiangsu P. R. China
Prof. Hairen Tan
National Laboratory of Solid State Microstructures Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied Science Nanjing University 210093 Jiangsu P. R. China
Prof. Huisheng Peng
State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University 200438 Shanghai P. R. China
Prof. Bo Zhang
State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University 200438 Shanghai P. R. China
Abstract The electrochemical conversion of carbon dioxide (CO2) to carbon monoxide (CO) is a favorable approach to reduce CO2 emission while converting excess sustainable energy to important chemical feedstocks. At high current density (>100 mA cm−2), low energy efficiency (EE) and unaffordable cell cost limit the industrial application of conventional CO2 electrolyzers. Thus, a crucial and urgent task is to design a new type of CO2 electrolyzer that can work efficiently at high current density. Here we report a polymer‐supported liquid layer (PSL) electrolyzer using polypropylene non‐woven fabric as a separator between anode and cathode. Ag based cathode was fed with humid CO2 and potassium hydroxide was fed to earth‐abundant NiFe‐based anode. In this configuration, the PSL provided high‐pH condition for the cathode reaction and reduced the cell resistance, achieving a high full cell EE over 66 % at 100 mA cm−2.
