期刊
SCIENTIFIC REPORTS
卷 5, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep16451
关键词
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资金
- National Natural Science Foundation of China [21306216, 21273260, 21303238, 21406251, 31470609]
- Shan Dong Provincial Natural Science Foundation for Distinguished Young Scholar, China [JQ 201305]
- Taishan Scholars Climbing Program of Shandong [tspd 20150210]
Ruthenium (Ru) supported on activated carbon (AC) and carbon nanotubes (CNTs) was carried out in the hydrogenolysis of sorbitol to ethylene glycol (EG) and 1,2-propanediol (1,2-PD) under the promotion of tungsten (WOx) species and different bases. Their catalytic activities and glycols selectivities strongly depended on the support properties and location of Ru on CNTs, owning to the altered metal-support interactions and electronic state of ruthenium. Ru located outside of the tubes showed excellent catalytic performance than those encapsulated inside the nanotubes. Additionally, the introduction of WOx into Ru/CNTs significantly improved the hydrogenolysis activities, and a complete conversion of sorbitol with up to 60.2% 1,2-PD and EG yields was obtained on RuWOx/CNTs catalyst upon addition of Ca(OH)(2). Stability study showed that this catalyst was highly stable against leaching and poisoning and could be recycled several times.
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