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Ni3P as a High-Performance Catalytic Phase for Hydrodeoxygenation of Phenolic Compounds

Abstract

The catalytic performance of an unsupported Ni2P in aqueous phase hydrodeoxygenatio (HDO) of phenol was investigated. It was found that the unsupported Ni2P was water-sensitive, being transformed stepwise, first to an amorphous phase and then to Ni5P2 and Ni12P5, and finally to Ni3P in the presence of water at elevated temperatures. Nontheless, the generated Ni3P phase exhibted extraordinary hydrogenation activity at low temperatures and high HDO activity at high temperatures. The unsupported Ni3P was more active for hydrogenation of the aromatic ring in phenol molecule than Pd/SiO2(1.0 wt%). The unsupported Ni3P was catalytically active and stable in phenol HDO in both aqueous phase and organic phase. In addition to phenol, catechol and o-cresol were investigated in the HDO catalyzed by the unsupported Ni3P in both aqueous solution and in decalin solution. The HDO reactivity decreased in the order: phenol > catechol > o-cresol in aqueous phase, and was: phenol > o-cresol in organic phase (catechol is insoluble in decalin). In the oil phase HDOs of phenol and o-cresol, the unsupported Ni3P exhibited superior hydrogenation activity to the unsupported Ni2P at low temperatures.

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Publication details

The article was received on 29 Oct 2017, accepted on 05 Jan 2018 and first published on 08 Jan 2018


Article type: Paper
DOI: 10.1039/C7GC03262E
Citation: Green Chem., 2018, Accepted Manuscript
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    Ni3P as a High-Performance Catalytic Phase for Hydrodeoxygenation of Phenolic Compounds

    Z. Yu, Y. Wang, Z. Sun, X. Li, A. Wang, D. Camaioni and J. A. Lercher, Green Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7GC03262E

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