“H2-free” demethoxylation of guaiacol in subcritical water using Pt supported on N-doped carbon catalysts: A cost-effective strategy for biomass upgrading

Laura Pastor-Pérez*, Wei Jin, Juan J. Villora-Picó, Qiang Wang, M. Mercedes Pastor-Blas, Antonio Sepúlveda-Escribano, Tomas R. Reina

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

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 languageEnglish
Pages (from-to)377-385
Number of pages9
JournalJournal of Energy Chemistry
Volume58
Early online date08 Jan 2021
DOIs
Publication statusPublished - Jul 2021
Externally publishedYes

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

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