Impact of oxygen vacancies in Ni supported mixed oxide catalysts on anisole hydrodeoxygenation

Impact of oxygen vacancies in Ni supported mixed oxide catalysts on anisole hydrodeoxygenation

The hydrodeoxygenation (HDO) activity of anisole has been investigated over Ni catalysts on mixed metal oxide supports containing NbZr and TiZr in 1:1 and 1:4 ratios. XRD patterns indicate the incorporation of Ti (or Nb) into the ZrO2 framework. XPS and oxygen pulse chemisorption analyses reveal t...

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Bibliographic Details
Main Authors: Hadi Ali, Tom Vandevyvere, Jeroen Lauwaert, Sushil Kumar Kansal, Shunmugavel Saravanamurugan, Joris W. Thybaut
Format: Article
Language:English
Published: Elsevier 2022-04-01
Series:Catalysis Communications
Subjects:
Hydrodeoxygenation
Anisole
Benzene
Oxophilic sites
Oxygen vacancy sites
Nickel
Online Access:http://www.sciencedirect.com/science/article/pii/S1566736722000413
Description
Summary:The hydrodeoxygenation (HDO) activity of anisole has been investigated over Ni catalysts on mixed metal oxide supports containing NbZr and TiZr in 1:1 and 1:4 ratios. XRD patterns indicate the incorporation of Ti (or Nb) into the ZrO2 framework. XPS and oxygen pulse chemisorption analyses reveal that Ni/Ti1Zr4 and Ni/Nb1Zr4 possessed more oxygen vacancy sites than Ni/Ti1Zr1 and Ni/Nb1Zr1, respectively. Correspondingly, the HDO activity of Ni/Ti1Zr4 and Ni/Nb1Zr4 was higher with an anisole conversion up to 30.7 and 34.4%, with high selectivity towards benzene (up to 64.7 and 63.3%), compared to corresponding Ni/Ti1Zr1 and Ni/Nb1Zr1 catalysts.
ISSN:1873-3905

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