02440nas a2200289   4500008004100000022001400041245013400055210006900189260000800258300001100266490000800277520138900285653003601674653003401710653002501744653003101769653002601800653002401826100002101850700001901871700003701890700002001927700002201947700002601969700002601995856012902021       2026                        eng d  a1387-700300aEnhancing Ru dispersion and catalytic stability via nitrogen-doped mesoporous carbon supports for biomass-derived FDCA production0 aEnhancing Ru dispersion and catalytic stability via nitrogendope  cJUN  a1165610 v1883 a<p>
	The rational design of efficient and selective nanostructured catalysts represents a key strategy for transforming biomass-derived feedstocks into value-added chemicals and fuels. 5-hydroxymethylfurfural (HMF) has emerged as one of the most promising platform chemicals due to its versatile reactivity and potential to be transformed into a wide range of value-added products. Herein, we report the preparation of Ru nanoparticles supported on both N-free and N-doped mesoporous carbon via wetness impregnation, and their application in the catalytic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) under mild reaction conditions. The 3wt% Ru-NMC-2 catalyst afforded complete HMF conversion with 83% yield of FDCA at 110 degrees C within 10 h under 10 bar O2. Our research reveals that the nitrogen content in the carbon matrix imparts basicity to the catalyst support, stabilizing smaller Ru metal nanoparticles and helping to maintain a higher metal dispersion (66%), thereby enhancing FDCA yield and turnover frequency. Furthermore, XPS analysis demonstrated that N doping in the carbon matrix would aid in stabilizing the higher availability of metallic Ru compared with nitrogen-free counterparts. The recyclability of the catalyst was demonstrated over 5 cycles, and it exhibited satisfactory catalytic performance towards FDCA yield.</p>
10a5-Furandicarboxylic acid (FDCA)10a5-hydroxymethylfurfural (HMF)10abiomass valorization10aMetal-support interactions10anitrogen-doped carbon10aRuthenium catalysts1 aKandasamy, Prabu1 aGogoi, Pranjal1 aVenugopalan, Aswathy, Thareparam1 aPandey, Pragati1 aRaja, Abhishekram1 aManikandan, Marimuthu1 aRaja, Thirumalaiswamy  uhttps://library.ncl.res.in/content/enhancing-ru-dispersion-and-catalytic-stability-nitrogen-doped-mesoporous-carbon-supports