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A Ship-in-a-Bottle Strategy To Synthesize Encapsulated Intermetallic Nanoparticle Catalysts: Exemplified for Furfural Hydrogenation
ACS Catalysis
  • Raghu V. Maligal-Ganesh, Iowa State University
  • Chaoxian Xiao, Iowa State University
  • Tian Wei Goh, Iowa State University
  • Lin-Lin Wang, Ames Laboratory
  • Jeffrey Gustafson, Iowa State University
  • Yuchen Pei, Iowa State University
  • Zhiyuan Qi, Iowa State University
  • Duane D. Johnson, Ames Laboratory
  • Shiran Zhang, University of Kansas
  • Franklin Feng Tao, University of Kansas
  • Wenyu Huang, Iowa State University
Document Type
Article
Publication Version
Published Version
Publication Date
1-1-2016
DOI
10.1021/acscatal.5b02281
Abstract
Intermetallic compounds are garnering increasing attention as efficient catalysts for improved selectivity in chemical processes. Here, using a ship-in-a-bottle strategy, we synthesize single-phase platinum-based intermetallic nanoparticles (NPs) protected by a mesoporous silica (mSiO2) shell by heterogeneous reduction and nucleation of Sn, Pb, or Zn in mSiO2-encapsulated Pt NPs. For selective hydrogenation of furfural to furfuryl alcohol, a dramatic increase in activity and selectivity is observed when intermetallic NPs catalysts are used in comparison to Pt@mSiO2. Among the intermetallic NPs, PtSn@mSiO2 exhibits the best performance, requiring only one-tenth of the quantity of Pt used in Pt@mSiO2 for similar activity and near 100% selectivity to furfuryl alcohol. A high-temperature oxidation–reduction treatment easily reverses any carbon deposition-induced catalyst deactivation. X-ray photoelectron spectroscopy shows the importance of surface composition to the activity, whereas density functional theory calculations reveal that the enhanced selectivity on PtSn compared to Pt is due to the different furfural adsorption configurations on the two surfaces.
Comments

Reprinted (adapted) with permission from ACS Catal., 2016, 6 (3), pp 1754–1763. Copyright 2016 American Chemical Society.

Copyright Owner
American Chemical Society
Language
en
File Format
application/pdf
Citation Information
Raghu V. Maligal-Ganesh, Chaoxian Xiao, Tian Wei Goh, Lin-Lin Wang, et al.. "A Ship-in-a-Bottle Strategy To Synthesize Encapsulated Intermetallic Nanoparticle Catalysts: Exemplified for Furfural Hydrogenation" ACS Catalysis Vol. 6 Iss. 3 (2016) p. 1754 - 1763
Available at: http://works.bepress.com/wenyu_huang/37/