Abstract
“H2-free” HDO is a revolutionary route to circumvent the limitations of H2-fed HDO reactors for biomass upgrading. This work demonstrates the viability of this economically appealing route when an adequate catalyst is implemented. Herein, we have developed a new family of Pt catalysts supported on N-doped activated carbons for the H2-free HDO process of guaiacol. Several N-donors have been used to tune the catalyst's structural and electronic properties. As a general trend, the N-promoted samples are more selective towards oxygen-depleted products. The best performing material, namely Pt/PANI-AC, reached outstanding guaiacol conversion values – ca. 75% at 300 °C while displaying reasonable stability for multiple recycling operations. The advanced performance is ascribed to the modified electronic and acid-base properties which favor guaiacol activation and C−O cleavage, as well as the excellent dispersion of the Pt nanoparticles.
Original language | English |
---|---|
Pages (from-to) | 377-385 |
Number of pages | 9 |
Journal | Journal of Energy Chemistry |
Volume | 58 |
Early online date | 08 Jan 2021 |
DOIs | |
Publication status | Published - Jul 2021 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2020 Science Press
Keywords
- Biomass upgrading
- Guaiacol
- H-free
- HDO
- N-doped carbon
- Pt
ASJC Scopus subject areas
- Fuel Technology
- Energy Engineering and Power Technology
- Energy (miscellaneous)
- Electrochemistry