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Microwave-assisted hydrothermal synthesis of NiSx and their promotional effect for the hydrodeoxygenation of p-cresol on MoS2

Paper ID Volume ID Publish Year Pages File Format Full-Text
49257 46730 2016 5 PDF Available
Title
Microwave-assisted hydrothermal synthesis of NiSx and their promotional effect for the hydrodeoxygenation of p-cresol on MoS2
Abstract

•NiSx with different phase compositions were synthesized by the microwave-assisted hydrothermal method.•The phase composition of NiSx was controlled by adjusting the synthesis conditions.•The presence of NiS2 enhanced p-cresol conversion but had no effect on product distribution.•The HDO reaction mechanism could be explained with Remote Control model through the spillover hydrogen.•NiS2 exhibited better promotional effect for the HDO activity of MoS2 than NiS and Ni3S4.

NiSx were synthesized by microwave assisted hydrothermal method using nickel nitrate and thiourea as precursor materials. Their phase compositions were controlled by adjusting the reaction temperature and pH value. In the hydrodeoxygenation (HDO) of p-cresol on MoS2, adding NiSx enhanced the conversion but had no effect on the product distribution. NiS2 phase exhibited higher promotional effect than NiS and Ni3S4 phases. The HDO reaction mechanism for p-cresol on NiSx + MoS2 could be well explained by the Remote Control model through a migration of spillover hydrogen.

Graphical abstractNiSx with different phase compositions were synthesized by microwave assisted hydrothermal method. In the HDO of p-cresol on MoS2, the presence of NiSx enhanced the conversion, but had no obvious effect on the product distribution. The HDO reaction mechanism for p-cresol on NiSx + MoS2 could be well explained with the Remote Control model through the spillover hydrogen generated on the NiSx. NiS2 exhibited better promotional effect for the HDO activity of MoS2 than NiS and Ni3S4.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
NiSx; Phase composition; Microwave-assisted hydrothermal method; Hydrodeoxygenation; MoS2; Remote Control model
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Microwave-assisted hydrothermal synthesis of NiSx and their promotional effect for the hydrodeoxygenation of p-cresol on MoS2
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 74, 10 January 2016, Pages 60–64
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us