In situ uncovering the catalytic cycle of electrochemical and chemical oxygen reduction mediated by iron porphyrin

Chemical Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

As one of the critical reactions in biotransformation and energy conversion processes, oxygen reduction reaction (ORR) catalyzed by iron porphyrins has been widely explored electrochemical, spectroscopic, theoretical methods. However, experimental identification all proposed intermediates catalytic cycle is rather challenging mechanistic studies ORR driven electrochemical or chemical Herein, we report application mass spectrometry (EC-MS) (CR-MS) to situ uncover ORRs mediated an porphyrin molecular catalyst. Five crucial iron-oxygen detected both EC-MS CR-MS help build whole indicate details 4e-/4H+ pathway produce H2O ORRs. By combining MS methods with spectroscopic characterize study selectivities, this work provides a comparison model porphyrin.

Language: Английский

Enhancing oxygen evolution over a highly fluorinated porphyrin-based COF covalently anchored on graphene oxide

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 163089 - 163089

Published: March 1, 2025

Language: Английский

分子电催化：金属卟啉催化析氢、析氧和氧还原反应研究

Chinese Science Bulletin (Chinese Version), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024