The effects of SMSI on m-Cresol Hydrodeoxygenation over Pt/Nb2O5 and Pt/TiO2
Abstract
The hydrodeoxygenation (HDO) of m-cresol was studied on Pt/Nb2O5/MgAl2O4 and Pt/TiO2/MgAl2O4 catalysts to understand the effects of Strong Metal Support Interactions (SMSI). The Nb2O5 and TiO2 supports were prepared as 0.7-nm films on MgAl2O4 by Atomic Layer Deposition (ALD) to ensure that the structures of the catalyst were the same. When reduced at 773 K to place Pt in the encapsulated state, Pt/Nb2O5/MgAl2O4 was much less active than Pt/MgAl2O4 at 573 K but much more active at 623 K. While Pt/MgAl2O4 deactivated rapidly due to coking, Pt/Nb2O5/MgAl2O4 showed significantly better coke tolerance and was almost 100% selective towards toluene production. Pt/Nb2O5/MgAl2O4 reduced at lower temperatures exhibited intermediate catalytic properties. The effect of reduction temperature on Pt/TiO2/MgAl2O4 was much less and this catalyst was more similar to Pt/MgAl2O4 than its Nb2O5 counterpart. Lastly, the implications of these results for understanding the nature of oxide promoters on HDO of m-cresol are discussed.
- Authors:
-
[1];
[2];
- Univ. of Pennsylvania, Philadelphia, PA (United States); Univ. of Delaware, Newark, DE (United States). Catalysis Center for Energy Innovation
- Univ. of Pennsylvania, Philadelphia, PA (United States)
- Publication Date:
- Research Org.:
- Univ. of Delaware, Newark, DE (United States). Catalysis Center for Energy Innovation
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- OSTI Identifier:
- 1779103
- Alternate Identifier(s):
- OSTI ID: 1781868
- Grant/Contract Number:
- SC0001004; NNCI-1542153
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Catalysis
- Additional Journal Information:
- Journal Volume: 398; Journal ID: ISSN 0021-9517
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 09 BIOMASS FUELS; Cresol; Hydrodeoxygenation; Support effects; Platinum; Niobium oxide; Titanium oxide; Atomic Layer Deposition (ALD).
Citation Formats
Huang, Renjing, Kwon, Ohhun, Lin, Chao, and Gorte, Raymond J. The effects of SMSI on m-Cresol Hydrodeoxygenation over Pt/Nb2O5 and Pt/TiO2. United States: N. p., 2021.
Web. doi:10.1016/j.jcat.2021.04.012.
Huang, Renjing, Kwon, Ohhun, Lin, Chao, & Gorte, Raymond J. The effects of SMSI on m-Cresol Hydrodeoxygenation over Pt/Nb2O5 and Pt/TiO2. United States. https://doi.org/10.1016/j.jcat.2021.04.012
Huang, Renjing, Kwon, Ohhun, Lin, Chao, and Gorte, Raymond J. Wed .
"The effects of SMSI on m-Cresol Hydrodeoxygenation over Pt/Nb2O5 and Pt/TiO2". United States. https://doi.org/10.1016/j.jcat.2021.04.012. https://www.osti.gov/servlets/purl/1779103.
@article{osti_1779103,
title = {The effects of SMSI on m-Cresol Hydrodeoxygenation over Pt/Nb2O5 and Pt/TiO2},
author = {Huang, Renjing and Kwon, Ohhun and Lin, Chao and Gorte, Raymond J.},
abstractNote = {The hydrodeoxygenation (HDO) of m-cresol was studied on Pt/Nb2O5/MgAl2O4 and Pt/TiO2/MgAl2O4 catalysts to understand the effects of Strong Metal Support Interactions (SMSI). The Nb2O5 and TiO2 supports were prepared as 0.7-nm films on MgAl2O4 by Atomic Layer Deposition (ALD) to ensure that the structures of the catalyst were the same. When reduced at 773 K to place Pt in the encapsulated state, Pt/Nb2O5/MgAl2O4 was much less active than Pt/MgAl2O4 at 573 K but much more active at 623 K. While Pt/MgAl2O4 deactivated rapidly due to coking, Pt/Nb2O5/MgAl2O4 showed significantly better coke tolerance and was almost 100% selective towards toluene production. Pt/Nb2O5/MgAl2O4 reduced at lower temperatures exhibited intermediate catalytic properties. The effect of reduction temperature on Pt/TiO2/MgAl2O4 was much less and this catalyst was more similar to Pt/MgAl2O4 than its Nb2O5 counterpart. Lastly, the implications of these results for understanding the nature of oxide promoters on HDO of m-cresol are discussed.},
doi = {10.1016/j.jcat.2021.04.012},
journal = {Journal of Catalysis},
number = ,
volume = 398,
place = {United States},
year = {Wed Apr 21 00:00:00 EDT 2021},
month = {Wed Apr 21 00:00:00 EDT 2021}
}
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