Document Type

Article

Publication Version

Published Version

Publication Date

2014

Journal or Book Title

ACS Catalysis

Volume

4

Issue

2

First Page

512

Last Page

518

DOI

10.1021/cs400851j

Abstract

Ketonization of the model bio-oil compound acetic acid was performed in a toluene-solvent condensed phase using five different CeMOx catalysts. The catalysts were characterized using a number of different techniques both before and after reaction testing to gain understanding of how material traits influence their catalytic performance. A number of potentially important catalytic properties were found to be of little importance for the respective reaction. For instance, it was discovered that there was no direct correlation between prereaction surface area with activity for ketonization at high or at low temperatures. Furthermore, better reducibility of the oxide did not appear to correlate with improved ketonization rates. XRD of postreaction materials used at different temperatures demonstrated the reaction temperature regime influenced whether the crystal structure of the fresh mixed oxide was disrupted. The precise temperature regimes were different, depending on composition of the catalytic material. Catalytic activity was then found to be maximized when metal carboxylate formation and subsequent decomposition of the carboxylate were appropriately balanced.

Comments

Reprinted (adapted) with permission from ACS Catalysis 4 (2014): 512, doi: 10.1021/cs400851j. Copyright 2014 American Chemical Society.

Copyright Owner

American Chemical Society

Language

en

File Format

application/pdf

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