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Figure 1
Sketch of SBA-15 showing the macropores in the 20 µm particle, the 2 µm rod-shaped subunit and the 10 nm hexagonal-ordered mesopores [reproduced from the work by Rasmussen et al. (2017BB22)].

IUCrJ
Volume 9| Part 1| January 2022| Pages 11-20
ISSN: 2052-2525
https://doi.org/10.1107/S205225252101071X