Volume 135, Issue 21 e202302950
Forschungsartikel

A Direct Formaldehyde Fuel Cell for CO2-Emission Free Co-generation of Electrical Energy and Valuable Chemical/Hydrogen

Dr. Yang Yang

Dr. Yang Yang

Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, 518055 Shenzhen, China

College of Physics and Optoelectronic Engineering, Shenzhen University, 518060 Shenzhen, China

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Xuexian Wu

Xuexian Wu

Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, 518055 Shenzhen, China

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Dr. Munir Ahmad

Dr. Munir Ahmad

Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, 518055 Shenzhen, China

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Dr. Fengzhan Si

Dr. Fengzhan Si

Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, 518055 Shenzhen, China

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Dr. Shujing Chen

Dr. Shujing Chen

Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, 518055 Shenzhen, China

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Dr. Chunhua Liu

Dr. Chunhua Liu

Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, 518055 Shenzhen, China

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Dr. Yan Zhang

Dr. Yan Zhang

Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, 518055 Shenzhen, China

Pingshan Translational Medicine Center, Shenzhen Bay Laboratory, 518055 Shenzhen, China

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Prof. Lei Wang

Prof. Lei Wang

Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, 518055 Shenzhen, China

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Prof. Jiujun Zhang

Prof. Jiujun Zhang

College of Materials Science and Engineering, Fuzhou University, 350108 Fuzhou, China

Institute for Sustainable Energy, College of Science, Shanghai University, 200444 Shanghai, China

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Prof. Jing-Li Luo

Prof. Jing-Li Luo

Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, 518055 Shenzhen, China

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Prof. Xian-Zhu Fu

Corresponding Author

Prof. Xian-Zhu Fu

Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, 518055 Shenzhen, China

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First published: 22 March 2023

Abstract

Converting carbon-based molecular fuels into electricity efficiently and cleanly without emitting CO2 remains a challenge. Conventional fuel cells using noble metals as anode catalysts often suffer performance degradation due to CO poisoning and a host of problems associated with CO2 production. This study provides a CO2-emission-free direct formaldehyde fuel cell. It enables a flow of electricity while producing H2 and valuable formate. Unlike conventional carbon-based molecules electrooxidation, formaldehyde 1-electron oxidation is performed on the Cu anode with high selectivity, thus generating formate and H2 without undergoing CO2 pathway. In addition, the fuel cell produces 0.62 Nm3 H2 and 53 mol formate per 1 kWh of electricity generated, with an open circuit voltage of up to 1 V and a peak power density of 350 mW cm−2. This study puts forward a zero-carbon solution for the efficient utilization of carbon-based molecule fuels that generates electricity, hydrogen and valuable chemicals in synchronization.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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