Synthesis of ..alpha..-MoC1-x Nanoparticles with a Surface-Modified SBA-15 Hard Template: Determination of Structure-Function Relationships in Acetic Acid Deoxygenation

Research output: Contribution to journalArticlepeer-review

42 Scopus Citations

Abstract

Surface modification of mesoporous SBA-15 silica generated a hydrophobic environment for a molybdenum diamine (Mo-diamine) precursor solution, enabling direct growth of isolated 1.9±0.4 nm α-MoC1−xnanoparticles (NPs) inside the pores of the support. The resulting NP catalysts are bifunctional, and compared to bulk α-MoC1−xand β-Mo2C, the NPs exhibit a greater acid-site:H-site ratio and a fraction of stronger acid sites. The greater acid-site:H-site ratio results in higher decarbonylation (DCO) selectivity during acetic acid hydrodeoxygenation (HDO) reactions, and the stronger acid sites lead to higher activity and ketonization (KET) selectivity at high temperatures. The hard-templating synthetic method could be a versatile route toward carbide NPs of varying size, composition, and phase, on a range of mesoporous oxide supports.

Original languageAmerican English
Pages (from-to)9026-9029
Number of pages4
JournalAngewandte Chemie - International Edition
Volume55
Issue number31
DOIs
StatePublished - 2016

Bibliographical note

Publisher Copyright:
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

NREL Publication Number

  • NREL/JA-5100-66185

Keywords

  • bifunctional catalysts
  • biomass conversion
  • hydrodeoxygenation
  • metal carbides
  • surface chemistry

Fingerprint

Dive into the research topics of 'Synthesis of ..alpha..-MoC1-x Nanoparticles with a Surface-Modified SBA-15 Hard Template: Determination of Structure-Function Relationships in Acetic Acid Deoxygenation'. Together they form a unique fingerprint.

Cite this