Notably, despite the low surface area, the 600-second sample still showed higher catalytic activity than the untreated MOF (Figure ), suggesting that the local atomic structure around Zr atoms may be more influential on the catalytic activity than surface area and porosity. PDF analysis (Figure ) shows that the long-range order of DUT-67 vanished after 99 180 seconds of treatment (hereafter called aDUT-67), though a signal at 11 Å persisted, 100 coming from inter-cluster Zr-Zr pairs, indicating that clusters are still connected through 101 tdc 2-ligands (Figure ). After 6 hours, signals at high r reveal the formation of ZrO 2 .