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Title: Synergistic Catalysis between Pd and Fe in Gas Phase Hydrodeoxygenation of m-Cresol

Journal Article · · ACS Catalysis
DOI:https://doi.org/10.1021/cs500578g· OSTI ID:1773667
 [1];  [2];  [2];  [3];  [2];  [3];  [3];  [2];  [1]
  1. Washington State Univ., Pullman, WA (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. Washington State Univ., Pullman, WA (United States)
  3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Here, a series of Pd/Fe2O3 catalysts were synthesized, characterized, and evaluated for the hydrodeoxygenation (HDO) of m-cresol. It was found that the addition of Pd remarkably promotes the catalytic activity of Fe while the product distributions resemble that of monometallic Fe catalyst, showing high selectivity toward the production of toluene (C–O cleavage without saturation of aromatic ring and C–C cleavage). Reduced catalysts featured with Pd patches on the top of reduced Fe nanoparticle surface, and the interaction between Pd and Fe, was further confirmed using X-ray photoelectron spectroscopy (XPS), scanning transmission electron microscopy (STEM), and X-ray absorption near edge fine structure (XANES). A possible mechanism, including Pd assisted H2 dissociation and Pd facilitated stabilization of the metallic Fe surface as well as Pd enhanced product desorption, is proposed to be responsible for the high activity and HDO selectivity in Pd–Fe catalysts. The synergic catalysis derived from Pd–Fe interaction found in this work was proved to be applicable to other precious metal promoted Fe catalysts, providing a promising strategy for future design of highly active and selective HDO catalysts.

Research Organization:
Univ. of Delaware, Newark, DE (United States). Synchrotron Catalysis Consortium (SCC)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
FG02-05ER15688
OSTI ID:
1773667
Journal Information:
ACS Catalysis, Vol. 4, Issue 10; ISSN 2155-5435
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 155 works
Citation information provided by
Web of Science

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Techno‐economic analysis of jet‐fuel production from biorefinery waste lignin journal December 2018
Selective Deoxygenation of Biomass-Derived Bio-oils within Hydrogen-Modest Environments: A Review and New Insights journal July 2016
Understanding the Performance and Stability of Supported Ni-Co-Based Catalysts in Phenol HDO journal November 2016
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