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Effect of Acid‐Basic Sites Ratio on the Catalytic Activity to Obtain 5‐HMF from Glucose Using Al2O3‐TiO2‐W Catalysts
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-12-04 , DOI: 10.1002/slct.201802607 Gerardo E. Córdova‐Pérez 1 , Gilberto Torres‐Torres 1 , Filiberto Ortíz‐Chi 2 , Srinivas Godavarthi 2 , Adib A. Silahua‐Pavón 1 , Armando Izquierdo‐Colorado 3 , Patrick Da Costa 3 , Norberto Hernández‐Como 4 , Miguel Aleman 4 , Claudia G. Espinosa‐González 2
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-12-04 , DOI: 10.1002/slct.201802607 Gerardo E. Córdova‐Pérez 1 , Gilberto Torres‐Torres 1 , Filiberto Ortíz‐Chi 2 , Srinivas Godavarthi 2 , Adib A. Silahua‐Pavón 1 , Armando Izquierdo‐Colorado 3 , Patrick Da Costa 3 , Norberto Hernández‐Como 4 , Miguel Aleman 4 , Claudia G. Espinosa‐González 2
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A series of Al2O3‐TiO2‐W materials with variation in W composition was prepared using an innocuous and easy sol‐gel method, under both acid and basic pH conditions. The morphology and composition of W in the materials were studied by Scanning Electron Microscopy (SEM) and Energy Dispersive X‐ray spectroscopy (EDS), respectively, Density of basic and acid sites by CO2 and NH3 temperature programmed desorption (TPD) technique, and physicochemical properties by N2 physisorption studies, X‐ray diffraction (XRD), and UV‐Vis spectroscopy. The catalytic properties of Al2O3‐TiO2‐W were examined for the conversion of glucose to produce 5‐hydroxymethylfurfural (5‐HMF) and the best yield of 5‐HMFobtained with the catalyst of 5 w% W load. This high yield level was achieved when the catalyst with 2.35 acid‐basic sites molar ratio was probed.
中文翻译：
Al2O3-TiO2-W催化剂上酸碱位比对葡萄糖催化制取5-HMF活性的影响
在酸性和碱性pH条件下，采用无毒且易溶的溶胶-凝胶法制备了一系列W组成不同的Al 2 O 3 -TiO 2 -W材料。通过扫描电子显微镜（SEM）和能量色散X射线光谱（EDS）分别研究了材料中W的形态和组成，通过CO 2和NH 3程序升温脱附（TPD）技术分别研究了碱性和酸性位点的密度。以及通过N 2物理吸附研究，X射线衍射（XRD）和UV-Vis光谱学获得的理化特性。Al 2 O 3 -TiO 2的催化性能检查了‐W的葡萄糖转化为5-羟甲基糠醛（5-HMF）的转化率，并使用了5 w％的W负载量的催化剂获得了最佳的5-HMF收率。当探测到具有2.35酸碱性位点摩尔比的催化剂时，达到了如此高的收率水平。
更新日期：2018-12-04
中文翻译：
Al2O3-TiO2-W催化剂上酸碱位比对葡萄糖催化制取5-HMF活性的影响
在酸性和碱性pH条件下，采用无毒且易溶的溶胶-凝胶法制备了一系列W组成不同的Al 2 O 3 -TiO 2 -W材料。通过扫描电子显微镜（SEM）和能量色散X射线光谱（EDS）分别研究了材料中W的形态和组成，通过CO 2和NH 3程序升温脱附（TPD）技术分别研究了碱性和酸性位点的密度。以及通过N 2物理吸附研究，X射线衍射（XRD）和UV-Vis光谱学获得的理化特性。Al 2 O 3 -TiO 2的催化性能检查了‐W的葡萄糖转化为5-羟甲基糠醛（5-HMF）的转化率，并使用了5 w％的W负载量的催化剂获得了最佳的5-HMF收率。当探测到具有2.35酸碱性位点摩尔比的催化剂时，达到了如此高的收率水平。
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