文献类型：期刊文献

英文题名：Carbon nanofibers supported Ru catalyst for sorbitol hydrogenolysis to glycols: Effect of calcination

作者：Zhao, Long[2];Zhou, Jinghong[1];Chen, Hong[1];Zhang, Mingguang[1];Sui, Zhijun[2];Zhou, Xinggui[2]

机构：[1]E China Univ Sci & Technol, Dept Chem Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2010

卷号：27

期号：5

起止页码：1412

外文期刊名：KOREAN JOURNAL OF CHEMICAL ENGINEERING

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000281513000010)】；

基金：The authors acknowledge the financial support from National Natural Science Foundation of China (No. 20776041) and Ministry of Education of China (IRT0721).

语种：英文

外文关键词：Ru/CNFs Catalyst; Calcination; Sorbitol Hydrogenolysis; Propylene Glycol; Ethylene Glycol

摘要：Carbon nanofiber (CNFs) supported Ru catalysts for sorbitol hydrogenolysis to ethylene glycol and propylene glycol were prepared by incipient wetness impregnation, calcination and reduction. The effect of calcination on catalyst properties was investigated using thermal gravimetry analysis, temperature-programmed reduction, X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy and N-2 physisorption. The results indicated that calcination introduced a great amount of surface oxygen-containing groups (SOCGs) onto CNF surface and induced the phase transformation of Ru species, but slightly changed the texture of Ru/CNFs. The catalytic performance in sorbitol hydrogenolysis showed that Ru/CNFs catalyst calcined at 240 degrees C presented the highest glycol selectivities and reasonable glycol yields. It was believed that the inhibition and confinement effect of SOCGs around Ru particles as well as the high dispersion of Ru particles was the key factor for the catalytic activity.