Kinetics of Reaction on a Single Catalytic Particle in a Fluidic Nanochannel

Abstract

One of the frontiers in heterogeneous catalysis is focused on reactions occurring on single catalytic nanoparticles. In this context, a reaction taking place on a single nanoparticle in a fluidic nanochannel is herein described by using the equation similar to that employed for a plug-flow reactor with dispersion. In the literature, one can find various boundary conditions for this equation. In the practically interesting case of a relatively long channel, the Dirichlet boundary conditions are shown to be valid. The corresponding analytical and numerical results illustrate the specifics of the profiles of the reactant concentration along the channel and the dependence of the reaction rate on the parameters. For comparison, the Danckwerts boundary conditions were used as well.

Analysis of the initiation of viral infection under flow conditions with applications to transmission in feed

“…is fixed. The discussion of this boundary condition in the context of chemical engineering is given by one of us (Zhdanov, 2020). In our present context, as we have already noticed, the role of diffusion is expected to be less important compared to flow.…”

“…With the reservation above, we can, however, notice that by analogy with chemical engineering [see, e.g., the discussion by one of us (Zhdanov, 2020)], Eq. (10) can be solved with different boundary conditions.…”