Xu, Shuman;
Zheng, Ke;
Boruntea, Cristian-Renato;
Cheng, Dang-guo;
Chen, Fengqiu;
Ye, Guanghua;
Zhou, Xinggui;
(2023)
Surface barriers to mass transfer in nanoporous materials for catalysis and separations.
Chemical Society Reviews
10.1039/d2cs00627h.
(In press).
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Abstract
Surface barriers to mass transfer in various nanoporous materials have been increasingly identified. These past few years especially, a significant impact on catalysis and separations has come to light. Broadly speaking, there are two types of barriers: internal barriers, which affect intraparticle diffusion, and external barriers, which determine the uptake and release rates of molecules into and out of the material. Here, we review the literature on surface barriers to mass transfer in nanoporous materials and describe how the existence and influence of surface barriers has been characterized, aided by molecular simulations and experimental measurements. As this is a complex, evolving research topic, without consensus from the scientific community at the time of writing, we present various current viewpoints, not always in agreement, on the origin, nature, and function of such barriers in catalysis and separation. We also emphasize the need for considering all the elementary steps of the mass transfer process in optimally designing new nanoporous and hierarchically structured adsorbents and catalysts.
| Type: | Article |
|---|---|
| Title: | Surface barriers to mass transfer in nanoporous materials for catalysis and separations |
| Location: | England |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1039/d2cs00627h |
| Publisher version: | https://doi.org/10.1039/D2CS00627H |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10172020 |
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