“…38 Three peaks of O 1s around 532.2, 531.2, and 529.8 eV correspond to CQO, C-O, and metal-O bonds, respectively. 43 The peak at 399.6 eV was attributed to N 1s from the amino group in the building block of Zr-MOF. 44 Moreover, the comparison of the calculated elemental compositions from the XPS analysis verified the existence of Ti, Zr, Pd, and Co species after integrating metal NPs into MXene/Zr-MOF (Table S2, ESI †), in accordance with the TEM and ICP-OES results.…”