Green fabrication of supported platinum nanoparticles by supercritical CO 2 deposition

Ying Liang Chen, Cheng Hsien Tsai, Mei Yin Chen, Yi Chieh Lai

Research output: Contribution to journalArticlepeer-review

Abstract

Pt nanoparticles were successfully deposited on uncatalyzed carbon paper by the supercritical CO 2 deposition (SCD) method using platinum (II) acetylacetonate as a precursor followed by thermal conversion. A full 2 4 factorial design (four factors, each with two levels) was used to investigate the main effect of four factors (deposition temperature, deposition time, reduction temperature, and reduction time) and the interaction effects between them. The morphological structures and surface properties of the Pt/carbon paper composite were analyzed by X-ray diffraction (XRD), scanning electron microscope (SEM)/energy-dispersive X-ray spectroscopy analyzer (EDS), and high-resolution transmission electron microscopy (HR-TEM). The results of the 2 4 factorial design showed that Pt loading on the substrate correlated significantly with deposition time, while Pt aggregation slightly increased with the thermal reduction temperature. Data obtained from both XRD and HR-TEM were in good agreement and showed that Pt nanoparticles were homogeneously dispersed on the substrate with diameters of 7.2-8.7 nm.

Original languageEnglish
Article number2587
JournalMaterials
Volume11
Issue number12
DOIs
Publication statusPublished - 2018 Dec 18

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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