Ye, G;
Guo, Z;
Sun, Y;
Zhu, K;
Liu, H;
Zhou, X;
Coppens, MO;
(2017)
Probing the Nature of Surface Barriers on ZSM-5 by Surface Modification.
Chemie Ingenieur Technik
, 89
(10)
pp. 1333-1342.
10.1002/cite.201700081.
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Abstract
The nature of external surface barriers in the zeolite ZSM-5 was explored by comparing mass transfer of n-heptane in samples with different crystal sizes, surface structure, and composition. These different surface properties were achieved by HF acid etching and SiO 2 deposition on an as-synthesized ZSM-5 crystal sample. HF etching does not reduce surface barriers. SiO 2 deposition on the same sample reduces surface barriers significantly. These insights into the nature of surface barriers could be used to guide the rational design of zeolitic materials with better mass transport properties.
| Type: | Article |
|---|---|
| Title: | Probing the Nature of Surface Barriers on ZSM-5 by Surface Modification |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/cite.201700081 |
| Publisher version: | http://doi.org/10.1002/cite.201700081 |
| Language: | English |
| Additional information: | © 2017 The Authors. Chemie Ingenieur Technik is published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | HF etching; n-Heptane; SiO2 deposition; Surface barriers; ZSM-5 |
| 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/10024562 |
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