燃料化学学报2015，Vol.43Issue(12)：1454-1460,7.
官能化碳纳米管负载Ru催化山梨醇氢解制备低碳二元醇
Effect of modified groups of carbon nanotubes on catalytic properties of Ru/CNTs catalysts for hydrogenolysis of sorbitol
摘要
Abstract
Ruthenium catalysts supported on carbon nanotubes with different functional groups ( MCN, AMCN and GMCN ) were prepared by incipient wetness impregnation with ultrasonic-assistance and used for the hydrogenolysis of sorbitol. The catalysts were characterized by X-ray diffraction ( XRD ) , HRTEM, X-ray photoelectron spectroscopy ( XPS) and ICP-AES. The effects of functional group species, and base additives on the catalytic performance of Ru/CNTs in the sorbitol hydrogenolysis reaction were investigated. Nearly 99. 5%of sorbitol conversion and 47 . 7% total yield of ethylene glycol and 1 , 2-propanediol ( 1 , 2-PD ) could be achieved over Ru/AMCN under mild reaction conditions (205℃, 5. 0 MPa), using Ca(OH)2 as additive. The conversion of sorbitol and the selectivity to ethylene glycol ( EG ) and 1 , 2-propanediol ( 1 , 2-PD ) did not decrease over the five repeated runs, which confirmed that the Ru/AMCN catalyst exhibited high stability in the aqueous hydrogenolysis of sorbitol to glycols.关键词
山梨醇/氢解/1,2-丙二醇/乙二醇/Ru/CNTs/官能化Key words
sorbitol/hydrogenolysis/1/2-propanediol/ethylene glycol/Ru/CNTs/functionalization分类
化学化工引用本文复制引用
董慧焕,郭星翠,秦张峰,韩生,牟新东..官能化碳纳米管负载Ru催化山梨醇氢解制备低碳二元醇[J].燃料化学学报,2015,43(12):1454-1460,7.基金项目
The project was supported by the National Natural Science Foundation of China (21406251, 21201174) and the Foundation of State Key Laboratory of Coal Conversion (J13-14-603). 国家自然科学基金(21406251, 21201174)和煤转化国家重点实验室开放课题(J13-14-603)资助 （21406251, 21201174）
