Fig. 1 | Nature Communications

Fig. 1

From: Positive and negative regulation of carbon nanotube catalysts through encapsulation within macrocycles

Fig. 1

Structures and microscopy. a Chemical structure of the macrocycles and b minimum energy (DFT) geometries of the corresponding MINTs with (6,5)-SWNTs. The calculated diameter of MINT-AQ is shown for comparison with the microscopy images. c, d Representative TEM images of MINT-AQ, showing SWNTs surrounded objects of adequate size (ca. 2 nm) and shape to be mac-AQ. Scale bars are 5 nm. e ac-HRTEM image of a single MINT-AQ, and f its corresponding analysis along the box depicted with thin white and red lines. gl AFM characterization of MINT-AQ. We observe isolated SWNTs with protrusions of around 2 nm (g, h), as shown in the profiles along the white dashed lines (i, j). The phase images (k, l) show energy dissipation contrast at the protrusions. Scale bars are 50 nm (g, k) and 100 nm (h, l)

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