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Presentation
Conversion Reactions in Surface-Functionalized Mesoporous Materials: Effect of Restricted Transport and Catalytic Site Distribution
MRS Proceedings
  • Jing Wang, Iowa State University
  • David Ackerman, Iowa State University
  • Kapil Kandel, Iowa State University
  • Igor I. Slowing, Iowa State University
  • Marek Pruski, Iowa State University
  • James W. Evans, Iowa State University
Document Type
Article
Disciplines
Publication Version
Published Version
Publication Date
1-1-2012
DOI
10.1557/opl.2012.229
Abstract

We analyze the interplay between anomalous transport and conversion reaction kinetics in mesoporous materials functionalized with catalytic groups. Of primary interest is functionalized mesoporous silica containing an array of linear pores with diameters tunable from 2-10 nm, although functionalization can produce smaller effective diameters, d. For d < 2 nm, transport and specifically passing of reactant and product species within the pores can be strongly inhibited (single-file diffusion). The distribution of catalytic groups can also vary depending on the synthesis approach. We apply statistical mechanical modeling (utilizing spatially discrete stochastic lattice-gas models) to explore the dependence of reactivity on the extent of inhibition of passing of species within the pore, as well as on the distribution of catalytic sites.

Comments

This article is from MRS Proceedings 1423 (2012): 6 pp., doi:10.1557/opl.2012.229. Posted with permission.

Copyright Owner
Materials Research Society
Language
en
File Format
application/pdf
Citation Information
Jing Wang, David Ackerman, Kapil Kandel, Igor I. Slowing, et al.. "Conversion Reactions in Surface-Functionalized Mesoporous Materials: Effect of Restricted Transport and Catalytic Site Distribution" MRS Proceedings Vol. 1423 (2012) p. 1 - 6
Available at: http://works.bepress.com/james-evans/26/