Campus Units

Chemistry, Mathematics, Physics and Astronomy, Ames Laboratory

Document Type

Article

Publication Version

Published Version

Publication Date

6-2012

Journal or Book Title

Physical Review Letters

Volume

108

Issue

22

First Page

228301-1

Last Page

228301-5

DOI

10.1103/PhysRevLett.108.228301

Abstract

Behavior of catalytic reactions in narrow pores is controlled by a delicate interplay between fluctuations in adsorption-desorption at pore openings, restricted diffusion, and reaction. This behavior is captured by a generalized hydrodynamic formulation of appropriate reaction-diffusion equations (RDE). These RDE incorporate an unconventional description of chemical diffusion in mixed-component quasi-single-file systems based on a refined picture of tracer diffusion for finite-length pores. The RDE elucidate the nonexponential decay of the steady-state reactant concentration into the pore and the non-mean-field scaling of the reactant penetration depth.

Comments

This article is from Physical Review Letters 108 (2012): 228301, doi:10.1103/PhysRevLett.108.228301. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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