Imperial College London
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Dr Roberto Rinaldi FRSC

Faculty of Engineering, Department of Chemical Engineering

Reader in Applied Chemistry
 
 
 
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Contact

 

+44 (0)20 7594 1302r.rinaldi1 Website

 
 
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Location

 

523ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Dierks:2018:10.1002/cctc.201702001,
author = {Dierks, M and Cao, Z and Manayil, JC and Akilavasan, J and Wilson, K and Schüth, F and Rinaldi, R},
doi = {10.1002/cctc.201702001},
journal = {ChemCatChem},
pages = {2219--2231},
title = {Impact of hydrophobic organohybrid silicas on the stability of Ni<inf>2</inf>P catalyst phase in the hydrodeoxygenation of biophenols},
url = {http://dx.doi.org/10.1002/cctc.201702001},
volume = {10},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Hydrodeoxygenation (HDO) of lignocellulose-derived pyrolysis oils offers an option to produce fuel substitutes. However, catalyst deactivation and stability constitute a significant issue. Herein, the dependence of stability and activity of Ni 2 P/SiO 2 HDO catalysts on the support surface polarity is addressed in detail. The support surface polarity was adjusted by copolymerizing tetraethyl orthosilicate (TEOS) with different types and amounts of organosilanes by a sol-gel process in the presence of nickel nitrate and citric acid. After thermal treatment under an inert atmosphere, Ni/SiO 2 precursors were formed. They were converted into Ni 2 P/SiO 2 catalysts by using NaH 2 PO 2 as a PH 3 source. The catalyst surface polarity was characterized by inverse gas chromatography measurements of the free energy of methanol adsorption, and specific and dispersive surface energies derived from polar and nonpolar probe molecule adsorption. The correlation between catalyst performance and support surface polarity indicates that, to prevent deactivation of the catalyst by water under reaction conditions, the affinity of the support towards polar substances must be decreased below a threshold value.
AU  - Dierks,M
AU  - Cao,Z
AU  - Manayil,JC
AU  - Akilavasan,J
AU  - Wilson,K
AU  - Schüth,F
AU  - Rinaldi,R
DO  - 10.1002/cctc.201702001
EP  - 2231
PY  - 2018///
SN  - 1867-3880
SP  - 2219
TI  - Impact of hydrophobic organohybrid silicas on the stability of Ni<inf>2</inf>P catalyst phase in the hydrodeoxygenation of biophenols
T2  - ChemCatChem
UR  - http://dx.doi.org/10.1002/cctc.201702001
UR  - http://hdl.handle.net/10044/1/58326
VL  - 10
ER  -
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