Fig. 1: Exemplification of how the advancement in electron microscopy has led to the continuous improvement of MOF image resolution. | Communications Chemistry

Fig. 1: Exemplification of how the advancement in electron microscopy has led to the continuous improvement of MOF image resolution.

From: Bulk and local structures of metal–organic frameworks unravelled by high-resolution electron microscopy

Fig. 1

a Structural models of the building units (super tetrahedron and mesoporous cage). b Schematic illustration of the [110] projected structure of MIL-101 with the typical truncated octahedral crystal morphology imposed. c A series of electron microscopy images of MIL-101 acquired in different years: HR-TEM image in 2005 (adapted with permission from ref. 23. © 2005 American Chemical Society); ADF-STEM image in 2016 (adapted with permission from ref. 46. © 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim); low-dose HR-TEM image obtained with the assistances of a DDEC camera in 2018 (published in 2019) (adapted with permission from ref. 36. © 2019 American Chemical Society), iDPC-STEM image in 2019 (unpublished), clearly showing that the image resolution is continuously improved with the advancement of the imaging techniques.

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