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Appropriate deposition of metal complex-based catalysts on solid carriers sometimes results in considerably higher catalytic activity than that of the metal complex alone, due to interactions between the complex and solid. These catalysts could be a part of single-molecule catalysts (SMCs) or site-isolated molecular complex catalysts (SIMCs). Herein, we report a solid-supported metal complex catalyst for CH4 oxidation at room temperature. Specifically, µ-nitrido-bridged iron phthalocyanine dimer deposited on conductive carbon black can oxidatively activate the chemically stable C–H bond of CH4 with high efficiency even at 25 °C in an aqueous solution containing H2O2 as an oxidant. Its catalytic activity for CH4 oxidation is much higher than that of commonly used Fenton reaction with Fe2+ and H2O2 under the same conditions. Such high catalytic oxidizing activity is attributable to the interaction between the specific surface sites of carbon black and the high-valent iron-oxo species of the catalyst molecule.

Rights:

• Creative Commons BY Attribution 4.0 International
  

Keyword: μ-nitrido-bridged dimer, carbon substrate, iron phthalocyanine, methane oxidation, scanning transmission electron microscopy

Date published: 2026-01-31

Publisher: Wiley

Journal:

• ChemCatChem (ISSN: 18673880) vol. 18 issue. 3 e01356

Funding:

• JSPS JP23H04874 (メゾヒエラルキーの映像分子科学)

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1002/cctc.202501356

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Updated at: 2026-02-02 16:30:07 +0900

Published on MDR: 2026-02-02 13:53:09 +0900