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This study developed manganese-based oxide (MnOx) catalysts using a mechanochemical oxidation method at room temperature, employing a metal-organic framework (Mn-BTC) as the precursor and KMnO4 as the oxidizing agent. Among the synthesized catalysts, MnOx-0.2 demonstrated the highest catalytic activity for propane oxidation, achieving a low T90 temperature of only 238 °C. Comprehensive characterization revealed that the MnOx-0.2 catalyst possessed a distinctive nanowire structure, abundant oxygen vacancies, a significantly increased surface-active oxygen-to-lattice oxygen ratio (Osur/Olatt = 1.904), and a higher Mn3+ content (51.76 %). These unique properties significantly enhanced lattice oxygen mobility and redox capability. Furthermore, in situ DRIFTS studies demonstrated that the cooperative interaction between surface-active oxygen species and lattice oxygen effectively facilitated the catalytic oxidation reaction. This research provides a simple, efficient, and environmentally friendly strategy for synthesizing high-performance MnOx catalysts with promising potential for practical industrial applications. © 2025
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Journal of Molecular Structure
ISSN: 0022-2860
Year: 2025
Volume: 1341
3 . 8 0 0
JCR@2022
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ESI Highly Cited Papers on the List: 0 Unfold All
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