Figure 3.

Amphiphilic nature of the bifunctional mixed SURMOF (HKUST‐1)/SURZIF (ZIF‐8) as evaluated with in situ Photoinduced Force Microscopy (PiFM). A) AFM image of 10 layers of ZIF‐8/HKUST‐1 grown on MPyr/MHDA. Markers indicate the location of point spectra taken for HKUST‐1 (yellow) and ZIF‐8 (red) before and after vacuum/N₂ purge cycles. B) IR spectra show the removal of ad‐/physisorbed water on the ambient HKUST‐1 and the water‐independent IR spectrum of ZIF‐8. C) IR spectra of both species after the introduction of 1000 ppm D₂O, and D) Zoom‐in IR spectra of the two areas marked in (C) showing the appearance of new peaks in the HKUST‐1 spectrum.