Oxidation of 5‑HMF Catalyzed by N‑Doped Carbon-Supported Non-Noble Metal Catalysts
Kaleeswari Kalimuthu1, Thinnaphat Poonsawat1, Peerapong Chumkaeo1
1NANOCAST Laboratory, Center for Catalysis for Advanced Sustainable Transformation (CAST), Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, 272 Rama VI Road, Ratchathewi, Bangkok 10400, Thailand.
Abstract:
2,5-Furandicarboxylic acid (FDCA) is an exceptionally promising biodegradable alternative to petroleum-derived terephthalic acid. The synthesis of FDCA from biomass-derived 5-hydroxymethylfurfural (HMF) has attracted significant attention. Herein, we report a straightforward method for synthesizing N-doped carbon-supported metal/metal phosphide catalysts developed using solid grinding techniques followed by pyrolysis. The synergistic effects of metal alloys and metal phosphides significantly influenced the product selectivity. The optimized catalyst (FeP-Co_0.2/NC) achieved a remarkable FDCA yield of 91.6% with complete HMF conversion at 150 °C for 24 h, using water as the solvent and O2 as the oxidant. This study presents a sustainable and efficient approach for FDCA production. This discovery represents a sustainable method for producing FDCA with a high yield by employing environmentally friendly solvents and oxidizers.
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