Phenol Deoxygenation Mechanisms on Fe(110) and Pd(111)
- Washington State Univ., Pullman, WA (United States); Washington State University
- Washington State Univ., Pullman, WA (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Washington State Univ., Pullman, WA (United States)
The catalytic deoxygenation of phenolic compounds has become a major area of interest in recent years as they are produced during the pyrolysis of lignin and are present in biofuels. Our previous work showed that a PdFe bimetallic catalyst was catalytically active for the deoxygenation of phenolics. In order to better understand and control the catalytic deoxygenation reaction of phenolics, the detailed surface reaction mechanisms are needed for phenol, a key intermediate in phenolic deoxygeantion. Here, we have examined five distinct reaction mechanisms for the deoxygenation of phenol on the Fe (110) and Pd (111) surfaces so as to identify the most likely deoxygenation mechanism on these surfaces. Here, our results show that the elementary phenol deoxygenation reaction step for each mechanism was highly endothermic on Pd (111) while the same mechanisms are exothermic on Fe (110). Based on the reaction energy studies, detailed mechanistic studies were performed on the Fe (110) surface and it was found that the most energetically and kinetically favorable reaction mechanism occurs via the direct cleavage of the C-O bond.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1772899
- Journal Information:
- ACS Catalysis, Journal Name: ACS Catalysis Journal Issue: 2 Vol. 5; ISSN 2155-5435
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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Direct Deoxygenation of Phenol over Fe-Based Bimetallic Surfaces Using On-the-Fly Surrogate Models
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Sun Oct 12 20:00:00 EDT 2025
· Journal of Physical Chemistry. C
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OSTI ID:3005777
Related Subjects
09 BIOMASS FUELS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
97 MATHEMATICS AND COMPUTING
Activation energy
Adsorption
Aromatic compounds
BEP relations
Benzene production
Chemical reactions
Density functional theory
Fe (110)
Minimum energy pathways
Pd (111)
Phenol deoxygenation
Redox reactions
Transition state theory
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
97 MATHEMATICS AND COMPUTING
Activation energy
Adsorption
Aromatic compounds
BEP relations
Benzene production
Chemical reactions
Density functional theory
Fe (110)
Minimum energy pathways
Pd (111)
Phenol deoxygenation
Redox reactions
Transition state theory