Reduced thermal expansion by surface-mounted nanoparticles in a pillared-layered metal-organic framework.

ABSTRACT: Control of thermal expansion (TE) is important to improve material longevity in applications with repeated temperature changes or fluctuations. The TE behavior of metal-organic frameworks (MOFs) is increasingly well understood, while the impact of surface-mounted nanoparticles (NPs) on the TE properties of MOFs remains unexplored despite large promises of NP@MOF composites in catalysis and adsorbate diffusion control. Here we study the influence of surface-mounted platinum nanoparticles on the TE properties of Pt@MOF (Pt@Zn₂(DP-bdc)₂dabco; DP-bdc^2-=2,5-dipropoxy-1,4-benzenedicarboxylate, dabco=1,4-diazabicyclo[2.2.2]octane). We show that TE is largely retained at low platinum loadings, while high loading results in significantly reduced TE at higher tempera

SUBMITTER: Berger J 

PROVIDER: S-EPMC9814677 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature