Preparation and characterization of cerium oxide ultrafine particles dispersed in polymer thin films

Masui, Toshiyuki; Machida, Ken‐ichi; Sakata, Takao; Mori, Hirotarô; Adachi, Gin‐ya

doi:10.1016/s0925-8388(96)03050-2

Cited by 31 publications

(13 citation statements)

References 21 publications

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“…2). The lattice constants of the seeds were $5.43 Å , which are in agreement with the literature [16,17]. (The working distance for TEM was 0.8 m, and the wavelength of the electron beam was 2.51 Å for 200 kV.)…”

Section: Resultssupporting

confidence: 88%

Formation of nanocrystalline cerium oxide and crystal growth

Tsai

2005

Journal of Crystal Growth

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Section: Resultssupporting

confidence: 88%

Formation of nanocrystalline cerium oxide and crystal growth

Tsai

2005

Journal of Crystal Growth

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“…The uniform dispersion of CeO 2 nanoparticles in the polymer matrix was observed by the preparation of CeO 2 from ultrafine cerium metal particles deposited upon nylon film in vacuum using oxidation in air. W. Wang et al used a direct facile synthetic strategy which is the in situ type to incorporate CeO 2 in regenerated cellulose films [19]. In their work, CeO 2 was fairly uniformly dispersed in the polymer matrix with an average size of about 24 nm.…”

Section: Introductionmentioning

confidence: 99%

Interface Interactions in Conjugated Polymer Composite with Metal Oxide Nanoparticles

Atisme

Tseng

et al. 2019

Nanomaterials

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This study presents the preparation, characterization, and properties of a new composite containing cerium oxide nanoparticles and a conjugated polymer. CeO2 nanoparticles prepared using the co-precipitation method were dispersed into the conjugated polymer, prepared using the palladium-catalyzed Suzuki–Miyaura cross-coupling reaction. The interface interactions between the two components and the resultant optoelectronic properties of the composite are demonstrated. According to transmission electron microscopy and X-ray absorption spectroscopy, the dispersion of CeO2 nanoparticles in the polymer matrix strongly depends on the CeO2 nanoparticle concentration and results in different degrees of charge transfer. The photo-induced charge transfer and recombination processes were studied using steady-state optical spectroscopy, which shows a significant fluorescence quenching and red shifting in the composite. The higher photo-activity of the composite as compared to the single components was observed and explained. Unexpected room temperature ferromagnetism was observed in both components and all composites, of which the origin was attributed to the topology and defects.

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“…Due to the chemical stability and strong interaction with metals, the polyamide group polymers have been chosen for the preparation of the composite film. This technique has been applied so far for the preparation of composite films consisting of nanosized particles dispersed in polymer thin films (15,16). By using this technique, we have previously developed the preparation of nanosized Au, Ag, Pd, and Cu 2 O particles dispersed in nylon 11 thin films (17)(18)(19).…”

Section: Introductionmentioning

confidence: 99%