Duan Yan-Xin, Zhou Yi-Tong, Yu Zhen, Liu Dong-Xue, Wen Zi, Yan Jun-Min, Jiang Qing
Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China.
Angew Chem Int Ed Engl. 2021 Apr 12;60(16):8798-8802. doi: 10.1002/anie.202015713. Epub 2021 Mar 9.
Formic acid (HCOOH) is one of the most promising chemical fuels that can be produced through CO electroreduction. However, most of the catalysts for CO electroreduction to HCOOH in aqueous solution often suffer from low current density and limited production rate. Herein, we provide a bismuth/cerium oxide (Bi/CeO ) catalyst, which exhibits not only high current density (149 mA cm ), but also unprecedented production rate (2600 μmol h cm ) with high Faradaic efficiency (FE, 92 %) for HCOOH generation in aqueous media. Furthermore, Bi/CeO also shows favorable stability over 34 h. We hope this work could offer an attractive and promising strategy to develop efficient catalysts for CO electroreduction with superior activity and desirable stability.
甲酸（HCOOH）是通过CO电还原能够制备的最具前景的化学燃料之一。然而，大多数用于在水溶液中将CO电还原为HCOOH的催化剂常常存在电流密度低和产率有限的问题。在此，我们提供了一种铋/氧化铈（Bi/CeO）催化剂，其不仅展现出高电流密度（149 mA cm⁻²），而且在水性介质中生成HCOOH时具有前所未有的产率（2600 μmol h⁻¹ cm⁻²）以及高法拉第效率（FE，92%）。此外，Bi/CeO在34小时以上还表现出良好的稳定性。我们希望这项工作能够为开发具有卓越活性和理想稳定性的高效CO电还原催化剂提供一种有吸引力且前景广阔的策略。
