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. Graphic Abstract

中文翻译：

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纳米流体通道中单个催化颗粒的反应动力学

摘要 多相催化的前沿之一集中在单个催化纳米颗粒上发生的反应。在本文中，在流体纳米通道中的单个纳米颗粒上发生的反应在本文中通过使用类似于用于具有分散体的活塞流反应器的方程来描述。在文献中，可以找到该方程的各种边界条件。在相对长的通道的实际有趣的情况下，狄利克雷边界条件被证明是有效的。相应的分析和数值结果说明了沿通道的反应物浓度分布的细节以及反应速率对参数的依赖性。为了进行比较，还使用了 Danckwerts 边界条件。图形摘要