Effects of successive additions of two capping ligands on the structural properties of PbO nanoparticles

Bangi, Uzma K.H.; Han, Wooje; Yoo, Byung Woo; Park, Hyung Ho

doi:10.1007/s11051-013-2070-y

Cited by 15 publications

(16 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further, the peaks at 1046, 1330 and 2840-2950 cm -1 correspond to the bonds of C-N, C=O and C-H of PVP and CTAB, indicating their capping on PbO. The peak at 844 is related to the C-H of the aromatic ring in PVP [5]. …”

Section: Resultsmentioning

confidence: 92%

“…1. The preparation of PbO was carried out by successive addition of PVP and CTAB as reported elsewhere [5]. To study the effects of fine grinding and ball milling on morphology of PbO, three samples were prepared as PN1 (without grinding or milling), PN2 (fine ground for 30 min.…”

Section: Methodsmentioning

confidence: 99%

“…The as processed precipitates were dried at 120°C over 24 h, fine grand for 30 min and ball milled (as reported in Ref. [5]) before calcination. Afterwards, each sample was calcined in O 2 atmosphere in a tube furnace at 400°C for 1 h with heating rate of 15°C min .…”

Section: Methodsmentioning

confidence: 99%

“…Till date, to synthesize PbO nanostructures viz. nanoparticles [5], nanorods [6], nanosheets [7,8] as well as nanowires, hexagonal nanoplates, and microspheres [9,10] above mentioned chemical techniques have been used. But, there are rare reports on the synthesis of PbO nanodiscs/nanoflowers using simple and cost-effective precipitation method.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ultrasonically assisted synthesis of lead oxide nanoflowers using ball milling

et al. 2017

Self Cite

View full text Add to dashboard Cite

The experimental results on the ultrasonically assisted synthesis of lead oxide nanoflowers using ball milling have been reported in the present work. Lead oxide nanoflowers were prepared employing mixed ligands by subjecting the formed precipitate to ultrasonication and grinding/ball milling. The effect of ball milling as well as fine grinding in agate mortar on the microstructure and surface morphology of the lead oxide was studied. The characteristics of synthesized PbO were studied using X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and field emission scanning electron microscopy techniques. XRD results demonstrated the tetragonal phase of PbO with crystallite size of around 25 nm and strain of 3.6 9 10 -3 calculated from Williamson-Hall plot. FESEM images manifested the formation of nanodiscs and nanoflowers with a diameter of around 300 nm and thickness of 50 nm. XPS spectra revealed the formation of PbO with photoelectron peak of Pb 4f and O 1 s lied at 137.68 and 529.96 eV. Moreover, FTIR spectrum exhibited Pb-O bond peak in the range of 400-530 cm -1 .

show abstract

Section: Resultsmentioning

confidence: 92%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ultrasonically assisted synthesis of lead oxide nanoflowers using ball milling

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…A dielectric constant of 21.1 at 1 MHz at room temperature with PbO nanoparticles was obtained in our previous work. [20] In this study, to improve the dielectric properties of PVPh polymer, nanocomplexing with the PbO nanoparticles as one of high-k materials has been carried out and investigated according to the content of PbO nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Dielectric properties of poly(4-vinylphenol) with embedded PbO nanoparticles

Han

Lee

Bangi

et al. 2015

Polym. Adv. Technol.

Self Cite

View full text Add to dashboard Cite

An organic/inorganic nanocomposite film was synthesized using poly(4-vinylphenol) (PVPh) as an organic insulating polymer and PbO nanoparticles as a high-k inorganic material to serve as an organic insulator with enhanced dielectric properties. PbO nanoparticles were dispersed into propylene glycol monomethyl ether acetate, and a solution of PbO/PVPh nanocomposite was prepared by adding a crosslinker. The PbO nanoparticle content within the PVPh polymer matrix was varied, and the effects of this variation upon the properties of the resulting nanocomposite films were studied, including the properties of surface morphology, surface bonding state and dielectric characteristic. The dielectric constant increased with increasing PbO content, reaching 9.2 at 1 MHz and with dielectric loss below 0.09 for the PbO content of 6 vol%. Furthermore, the leakage current increased to only 1.3 × 10 À8 A cm À1 at the highest nanoparticle loadings, compared to the 7.2 × 10 À9 of pristine PVPh. The addition of PbO nanoparticles was found to effectively suppress the absorption of moisture on the surface of PbO/PVPh nanocomposite, although it also increased surface roughness, owing to the agglomeration and particulation of PVPh arising from an anchoring effect of the PbO nanoparticles.

show abstract