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Updated: Dec 16, 2025
08:15
Temperature-programmed Deoxygenation of Acetic Acid on Molybdenum Carbide Catalysts
Published on: February 7, 2017
11.7K
Biomass hydrodeoxygenation catalysts innovation from atomistic activity predictors
Fabian Morteo-Flores1, Julien Engel1, Alberto Roldan1
1Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK.
Summary
This study uses computational methods to understand how transition metals catalyze biomass conversion. Nickel shows promise for efficient hydrodeoxygenation (HDO) of biomass derivatives, aiding the circular economy.
Area of Science:
- Catalysis research
- Computational chemistry
- Sustainable energy
Background:
- Circular economy principles aim to reduce raw material consumption and environmental impact.
- Second-generation biomass conversion offers a sustainable route to bulk chemicals.
- Catalytic processes are crucial for upgrading lignocellulosic biomass into biofuels.
Purpose of the Study:
- To investigate the relationship between transition metal properties and their catalytic activity in biomass valorization.
- To understand the role of hydrogen and oxygen affinity in hydrodeoxygenation (HDO) of biomass-derived compounds.
- To identify efficient catalysts for low-temperature HDO processes.
Main Methods:
- Density functional theory (DFT) calculations were employed.
- Explored the properties of 13 transition metals as potential catalysts.
- Analyzed hydrogen and oxygen adsorption energies and electronic properties.
Main Results:
- A linear relationship was found between metal electronic properties and hydrogen/oxygen adsorption energies.
- These relationships rationalize catalyst binding affinity and C-O bond breaking.
- Nickel (Ni) demonstrated a balanced affinity for hydrogen and oxygen.
- A combination of work function and d-band properties provided better correlation than d-band properties alone for predicting adsorption strength.
Conclusions:
- The findings accelerate catalyst innovation for efficient biomass hydrodeoxygenation.
- Computational insights guide the development of catalysts for a circular economy.
- Optimized catalysts can enable low-temperature HDO processes for biomass derivatives like guaiacol and anisole.
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