Tuning the Acidity of Pt/CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether
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Document Type
Journal Article
Publication Date
2019
DOI
10.3791/59870
Abstract
We herein present a method for the synthesis of HNbWO6, HNbMoO6, HTaWO6 solid acid nanosheet modified Pt/CNTs. By varying the weight of various solid acid nanosheets, a series of Pt/xHMNO6/CNTs with different solid acid compositions (x = 5, 20 wt%; M = Nb, Ta; N = Mo, W) have been prepared by carbon nanotube pretreatment, protonic exchange, solid acid exfoliation, aggregation and finally Pt particles impregnation. The Pt/xHMNO6/CNTs are characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and NH3-temperature programmed desorption. The study revealed that HNbWO6 nanosheets were attached on CNTs, with some edges of the nanosheets being bent in shape. The acid strength of the supported Pt catalysts increases in the following order: Pt/CNTs < Pt/5HNbWO6/CNTs < Pt/20HNbMoO6/CNTs < Pt/20HNbWO6/CNTs < Pt/20HTaWO6/CNTs. In addition, the catalytic hydroconversion of lignin-derived model compound: diphenyl ether using the synthesized Pt/20HNbWO6 catalyst has been investigated.
Source Publication
Journal of Visualized Experiments
Volume Number
2019
Issue Number
150
ISSN
1940-087X
Recommended Citation
Guan, W.,Li, C.,Chen, X.,Lu, X.,Tsang, C.,Hu, H.,Qi, H.,& Liang, C. (2019). Tuning the Acidity of Pt/CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether. Journal of Visualized Experiments, 2019 (150). http://dx.doi.org/10.3791/59870