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. 2016 Dec 21;3(12):160552. doi: 10.1098/rsos.160552

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© 2016 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 4. — SEM images of (a) a NaA crystal-seeded HNM support before and (b) after a 2 min ultrasonic treatment; SEM images of (c) a silicalite-1 crystal-seeded HNM support before and (d) after a 2 min ultrasonic treatment; SEM images of (e) a NaY crystal-seeded HNM support before and (f) after a 2 min ultrasonic treatment.