Interrogation of the Effect of Polymorphism of a Metal-Organic Framework Host on the Structure of Embedded Pd Guest Nanoparticles

Joshua D. Butson, Hyunjeong Kim, Krishnan Murugappan, Martin Saunders, Craig E. Buckley, Debbie S. Silvester, Petra A. Szilagyi

Research output: Contribution to journalArticle

Abstract

Metal-organic frameworks (MOFs) are very promising host materials for nanoscale guest materials. However, some MOFs such as MIL-53 are known to undergo phase transitions which can complicate the guest particle size control. In this study, Pd nanoparticles embedded in Al-MIL-53 were synthesised via (a) electrodeposition and (b) gas-phase reduction. A thorough structural investigation revealed that each synthesis method most likely favoured a different phase of Al-MIL-53, presenting the possibility of MOF phase selection as a technique for size control of embedded nanoparticles. For the first time, we hereby report the use of pair distribution function analysis to successfully investigate the structure and morphology of guest particles embedded in a MOF host.

Original languageEnglish
Pages (from-to)745-751
Number of pages7
JournalChemPhysChem
Volume20
Issue number5
DOIs
Publication statusPublished - 4 Mar 2019

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