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The relative amounts of acidic and basic sites in niobium‐containing ordered mesoporous silicates (Nb‐KIT‐6) are tunable with metal loading. The acidity and basicity change from 0.11 to 0.34 mmol NH3‐equiv./g cat. and 0.17 to 0.31 mmol CO2‐equiv./g cat., respectively, as the Nb loading is increased from 1.5 to 10.9%. This work harnesses this unique feature to better understand acidity and basicity...
2,5‐furandicarboxylic acid (FDCA) is a potential non‐phthalate based bio‐renewable substitute for terephthalic acid‐based plastics. Herein, we present an investigation of the oxidation rate of 5‐hydroxymethylfurfural (HMF) to FDCA in acetic acid medium using Co/Mn/Br catalyst. Transient concentration profiles of the reactant (HMF), intermediates [2,5‐diformylfuran (DFF), 5‐formyl‐2‐furancarboxylic...
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