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.
Angew Chem Int Ed Engl. 2023 May 15;62(21):e202302950. doi: 10.1002/anie.202302950. Epub 2023 Apr 18.
Converting carbon-based molecular fuels into electricity efficiently and cleanly without emitting CO 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 CO production. This study provides a CO -emission-free direct formaldehyde fuel cell. It enables a flow of electricity while producing H 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 H without undergoing CO pathway. In addition, the fuel cell produces 0.62 Nm H 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 . 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.
将碳基分子燃料高效、清洁地转化为电能而不排放 CO 仍然是一个挑战。传统的使用贵金属作为阳极催化剂的燃料电池往往会因 CO 中毒和与 CO 生成相关的一系列问题而导致性能下降。本研究提供了一种无 CO 排放的直接甲醛燃料电池。它在产生 H 和有价值的甲酸盐的同时实现了电流的流动。与传统的基于碳的分子电氧化不同，甲醛在 Cu 阳极上以高选择性进行 1 电子氧化，从而在不经历 CO 途径的情况下生成甲酸盐和 H。此外，该燃料电池每产生 1 kWh 的电能可产生 0.62 Nm H 和 53 mol 甲酸盐，开路电压高达 1 V，峰值功率密度为 350 mW·cm 。本研究提出了一种零碳解决方案，可高效利用碳基分子燃料，同步发电、产氢和有价值的化学品。
