On thermal stability and catalytic reactivity of Zr-metal-organic framework (UiO-67) encapsulated Pt catalysts

Research output: Contribution to journalArticle

  • External authors:
  • Peter Hester
  • Shaojun Xu
  • Wei Liang
  • Nadeen Al-Janabi
  • Patrick Hill
  • Christopher Muryn
  • Xiaobo Chen


Pt nanoparticles (NPs, 0.5 wt.%) encapsulated in a zirconium-based metal-organic framework (UiO-67 MOF) were synthesised via a linker design method. Thermal behaviours of Pt in UiO-67 composite materials were studied using thermogravimetric and differential thermal analysis (TG-DTA) in comparison with UiO-67. TG-DTA results showed that Pt insertion can impair the thermal stability of the bulk UiO-67 resulting in a ca. 14% drop in the critical temperature of the thermal decomposition. Temperature-programmed oxidation of materials showed that calcination at 450 K was essential to render a clean framework. Temperature-programmed reduction of materials revealed that the chemisorption of H2 on UiO-67 (at 323 K) was evidently enhanced owing to the incorporation of Pt NPs thus making PtNP@UiO-67 suitable for hydrogenation reactions and hydrogen storage. PtNP@UiO-67 catalyst was evaluated by the oxidation and hydrogenation of 5-hydroxymethylfurfural in aqueous solutions at 363 K showing an improved activity and selectivity in hydrogenation reactions.

Bibliographical metadata

Original languageEnglish
Pages (from-to)85-94
Number of pages10
JournalJournal of Catalysis
Early online date7 Jun 2016
StatePublished - Aug 2016

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