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Article
CeMOx-promoted ketonization of biomass-derived carboxylic acids in the condensed phase
ACS Catalysis
  • Ryan William Snell, Iowa State University
  • Brent H. Shanks, Iowa State University
Document Type
Article
Publication Version
Published Version
Publication Date
1-1-2014
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
Date Available
2015-03-11
File Format
application/pdf
Citation Information
Ryan William Snell and Brent H. Shanks. "CeMOx-promoted ketonization of biomass-derived carboxylic acids in the condensed phase" ACS Catalysis Vol. 4 Iss. 2 (2014) p. 512 - 518
Available at: http://works.bepress.com/brent_shanks/31/