Versatile nickel-tungsten bimetallics/carbon nanofiber catalysts for direct conversion of cellulose to ethylene glycol

We herein propose a novel synthetic methodology for a series of nickel-tungsten bimetallics/carbon nanofiber catalysts (Ni, 0.37-2.08 wt%; W, 0.01-0.06 wt%) in situ fabricated by pyrolysis (950 °C) of Ni, W and Zn-containing metal organic framework (Ni 0.6− x -W x -ZnBTC, x = 0-0.6) fibers. The resu...

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Bibliographic Details
Published in:Green chemistry : an international journal and green chemistry resource : GC 2016-01, Vol.18 (14), p.3949-3955
Main Authors: Yang, Ying, Zhang, Wen, Yang, Feng, Brown, Dennis E, Ren, Yang, Lee, Sungsik, Zeng, Dehong, Gao, Qiang, Zhang, Xin
Format: Article
Language:English
Subjects:
Bimetals
Carbon fibers
Catalysis
Catalysts
Direct conversion
Ethylene glycol
MATERIALS SCIENCE
Nanofibers
Nickel
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Summary:We herein propose a novel synthetic methodology for a series of nickel-tungsten bimetallics/carbon nanofiber catalysts (Ni, 0.37-2.08 wt%; W, 0.01-0.06 wt%) in situ fabricated by pyrolysis (950 °C) of Ni, W and Zn-containing metal organic framework (Ni 0.6− x -W x -ZnBTC, x = 0-0.6) fibers. The resulting catalysts (Ni 0.6− x -W x /CNF) have uniform particles ( ca. 68 nm), evenly dispersed onto the hierarchically porous carbon nanofibers formed simultaneously. All of the Ni 0.6− x -W x /CNF catalysts prove to be highly active towards direct conversion of cellulose to ethylene glycol (EG). A large productivity ranging from 15.3 to 70.8 mol EG h −1 g W −1 is shown, two orders of magnitude higher than those by using other W-based catalysts reported. Sustainable and highly efficient production of ethylene glycol is achieved by direct conversion of cellulose over nickel-tungsten bimetallics/carbon nanofiber catalysts.
ISSN:1463-9262
1463-9270
DOI:10.1039/c6gc00703a