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Hydrophilic Pt nanoflowers: synthesis, crystallographic analysis and catalytic performance.

ABSTRACT: Water-soluble Pt nanoflowers (NFs) were prepared by diethylene glycol-mediated reduction of Pt acetylacetonate (Pt(acac)2) in the presence of polyethylenimine. Advanced electron microscopy analysis showed that the NFs consist of multiple branches with a truncated cubic morphology and different crystallographic orientations. We demonstrate that the nature of the solvent strongly influences the resulting morphology. The catalytic performance of the Pt NFs in 4-nitrophenol reduction was found to be superior to that of other nanoparticle-based catalysts. Additionally, the Pt NFs display good catalytic reusability with no loss of activity after five consecutive cycles.

SUBMITTER: Mourdikoudis S

PROVIDER: S-EPMC5361136 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature

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Hydrophilic Pt nanoflowers: synthesis, crystallographic analysis and catalytic performance.

Mourdikoudis Stefanos S Altantzis Thomas T Liz-Marzán Luis M LM Bals Sara S Pastoriza-Santos Isabel I Pérez-Juste Jorge J

CrystEngComm 20160412 19

Water-soluble Pt nanoflowers (NFs) were prepared by diethylene glycol-mediated reduction of Pt acetylacetonate (Pt(acac)<sub>2</sub>) in the presence of polyethylenimine. Advanced electron microscopy analysis showed that the NFs consist of multiple branches with a truncated cubic morphology and different crystallographic orientations. We demonstrate that the nature of the solvent strongly influences the resulting morphology. The catalytic performance of the Pt NFs in 4-nitrophenol reduction was ...[more]

PMID: 28496381

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