Interfacial Strong Metal-Support Interaction over Ni/CeO2 for Hydrodeoxygenation of Guaiacol to Phenols
Abstract
The hydrodeoxygenation (HDO) of guaiacol demonstrates significant potential for the efficient conversion of biomass into biofuels and fine chemicals. In this work, a Ni/CeO2 catalyst was synthesized via a combined hydrothermal and pyrolysis method; the catalytic performance of the material was evaluated, with a water-glycerol mixture employed as the in situ hydrogen donor. Under the optimal conditions of 280 °C and 6 h, the guaiacol conversion reached 56.71%, and the catalyst maintained a conversion rate close to 50% after four consecutive uses, showing excellent reusability. Combined with product distribution and characterization results, the HDO reaction pathways and mechanisms of guaiacol over Ni/CeO2 were proposed. Metallic Ni active sites, oxygen vacancies, and surface acid sites exerted a synergistic effect to modulate the cleavage of C–O bonds and product selectivity. This study provides a feasible strategy for the selective conversion of guaiacol into high-value phenols.
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References 38
- Authors
- Qiu, B., Zhai, X., Cao, W., & Chu, H.
- Affiliations
- Anhui University of Technology (CN)
- Corresponding author
- Chu, Huaqiang
- ORCID
- Chu, Huaqiang
- Venue
- ACS Sustainable Chemistry & Engineering
- Publisher
- American Chemical Society (ACS)
- Published
- 2026-10-13
- Volume
- 14
- Issue
- 42
- Pages
- 19396-19406
- ISSN
- 2168-0485 (ISSN-L)
- OpenAlex
- W7221719688
- Cited by
- 0
- References
- 38
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- ACS Sustainable Chemistry & Engineering (publishedVersion)
- Funders
- University Natural Science Research Project of Anhui Province (2022AH050311, KJ2020ZD29)
- National Natural Science Foundation of China (52306125)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Catalysis for Biomass Conversion
- Physical Sciences › Engineering › Mechanical Engineering › Catalysis and Hydrodesulfurization Studies
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Keywords
- hydrodeoxygenation, guaiacol, Ni/CeO2 catalyst, strong metal-support interaction, cerium oxide, nickel catalysts, phenol production, biomass conversion, biofuels, oxygen vacancies, surface acid sites, C–O bond cleavage, reaction mechanism, catalyst reusability
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