Phosphorylated mesoporous carbon as effective catalyst for the selective fructose dehydration to HMF  

作　　者：A. Villa M. Schiavoni P. F. Fulvio S. M. Mahurin S. Dai R. T. Mayes G. M. Veith L. Prati 

机构地区：[1]Dipartimento di Chimica, Universita'degli Studi di Milano, via Golgi 19-20133 Milano, Italy [2]Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, United States [3]Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, United States

出　　处：《Journal of Energy Chemistry》2013年第2期305-311,共7页能源化学（英文版）

基　　金：supported by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory, managed by UT-Battelle,LLC, for the U. S. Department of Energy (GMV). TEM studies were performed through Oak Ridge National Laboratory’s Center for Nanophase Materials Science (CNMS) which is sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U. S. Department of Energy

摘　　要：Phosphorylated mesoporous carbons （PMCs） were investigated as catalysts in the dehydration of fructose to hydroxymethylfurfural （HMF）. The acidic PMCs show better selectivity to HMF compared to sulfonated carbon catalyst （SC） despite lower activity. The concentration of P-O groups on the PMC was correlated with the activity/selectivity of the catalysts; the higher the P-O concentration, the higher the activity. However, the higher the P-O content, the lower the selectivity to HME Indeed, a lower concentration of the P-O groups minimized the degradation of HMF to levulinic acid and the formation of by-products, such as humines. Stability tests showed that these systems deactivate due to the formation of humines and water insoluble by-products derived from the dehydration of fructose which blocked the catalytically active sites.Phosphorylated mesoporous carbons （PMCs） were investigated as catalysts in the dehydration of fructose to hydroxymethylfurfural （HMF）. The acidic PMCs show better selectivity to HMF compared to sulfonated carbon catalyst （SC） despite lower activity. The concentration of P-O groups on the PMC was correlated with the activity/selectivity of the catalysts; the higher the P-O concentration, the higher the activity. However, the higher the P-O content, the lower the selectivity to HME Indeed, a lower concentration of the P-O groups minimized the degradation of HMF to levulinic acid and the formation of by-products, such as humines. Stability tests showed that these systems deactivate due to the formation of humines and water insoluble by-products derived from the dehydration of fructose which blocked the catalytically active sites.

关 键 词：phosphorylated mesoporous carbons fructose dehydration HYDROXYMETHYLFURFURAL 

分 类 号：O643.32[理学—物理化学]