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Hydrodechlorination of Dichloromethane by a Metal-Free Triazole-Porphyrin Electrocatalyst: Demonstration of Main-Group Element Electrocatalysis

submitted on 04.08.2020, 21:05 and posted on 05.08.2020, 12:55 by Caroline Williams, Amir Lashgari, Marcus Ang, Pranita Dhungana, Jianbing Jiang

In this work, the electrocatalytic reduction of dichloromethane (CH2Cl2) into hydrocarbons involving a main group element-based molecular triazole-porphyrin electrocatalyst H2PorT8 is reported. This catalyst converted CH2Cl2 in acetonitrile to various hydrocarbons (methane, ethane, and ethylene) with a Faradaic efficiency of 70% and current density of –13 mA/cm2 at a potential of –2.2 V vs. Fc/Fc+ using water as a proton source. The findings of this study and its mechanistic interpretations demonstrated that H2PorT8 was an efficient and stable catalyst for the hydrodechlorination of CH2Cl2 and that main group catalysts could be potentially used for exploring new catalytic reaction mechanisms.


National Science Foundation


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University of Cincinnati


United States

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Declaration of Conflict of Interest

no conflict of interest