Combined in Situ XAFS and FTIR Study of the Hydrodeoxygenation Reaction of 2-Methyltetrahydrofuran on Ni 2 P/SiO 2

Ayako Iino, Atsushi Takagaki, Ryuji Kikuchi, S. Ted Oyama, Kyoko K. Bando

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    13 Citations (Scopus)

    Abstract

    This paper deals with a study of the mechanism of hydrodeoxygenation (HDO) at 0.1 MPa and 300-350 °C of 2-methyltetrahydrofuran (2-MTHF) over a Ni 2 P/SiO 2 catalyst. The study was conducted using in situ Fourier transform infrared (FTIR) spectroscopy to monitor the adsorbed species during reaction and in situ X-ray absorption fine structure (XAFS) to probe the oxidation state of the Ni component. The work is relevant to the upgrading of bio-oil derived from the pyrolysis of biomass. It was deduced that the initial interaction of the 2-MTHF was with OH groups on the catalyst surface, followed by adsorption on Ni sites. Ring-opening of the tetrahydrofuran led to the formation of the main products of the reaction, n-pentane by HDO and n-butane + CO by decarbonylation. The CO band appeared with a slight delay in the FTIR spectrum because the reaction to form n-pentane was favored and turned over about four times before one n-butane + CO was formed.

    Original languageEnglish
    Pages (from-to)7633-7643
    Number of pages11
    JournalJournal of Physical Chemistry C
    Volume123
    Issue number13
    DOIs
    Publication statusPublished - Apr 4 2019

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • General Energy
    • Physical and Theoretical Chemistry
    • Surfaces, Coatings and Films

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