Poly(vinyl pyrolidone) coated silver nano powder via displacement reaction

Khanna, Pawan K.; Gokhale, R.; Subbarao, V.V.V.S.

doi:10.1023/b:jmsc.0000030735.08903.a9

Cited by 42 publications

(18 citation statements)

References 18 publications

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“…This indicates that the carbonyl group is highly capable of participating in the polymeric stabilizer-nanoparticle interactions. Essentially similar conclusions were made in [71] during an investigation of the PVP stabilization of AgNPs produced during the reduction of Ag + by metallic copper. As supposed by the authors, the minimal shift of the d(C-N) band is the result of weak coordination interaction of the nitrogen with the surface of the AgNP while the shift of the n(C=O) band into the region of smaller values of n is due to weakening of the C=O bond during its participation in interactions of such a type.…”

Section: Poly(n-vinyl-2-pyrrolidone)supporting

confidence: 67%

Features of the stabilization of silver nanoparticles by carbonyl-containing polymers

Tolstov

Lebedev

2012

Theor Exp Chem

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Recent advances in the investigation of the reaction of silver nanoparticles and stabilizers of the polymer type with carbonyl-containing functional groups are examined. Data on the characteristics of the investigated polymer-silver nanoparticle nanosystems and the effect of the structure of the polymer on the form and size of the nanoparticles are summarized. The mechanism of stabilization is presented for each type of polymer.

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Section: Poly(n-vinyl-2-pyrrolidone)supporting

confidence: 67%

Features of the stabilization of silver nanoparticles by carbonyl-containing polymers

Tolstov

Lebedev

2012

Theor Exp Chem

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“…The spectra of the as-deposited film show the presence of Ti-O stretching around 500 to 800 cm −1 [23]. It also shows the peaks corresponding to the organic components present in the PVP stabilizer in the region 1000 cm −1 to 1400 cm −1 corresponding to the pyridine ring (C 4 H 8 N-) in the PVP [24]. It also exhibited the peak corresponding to hydroxyl groups (O-H stretching) or water content in the region 1620 and 3500 cm −1 [25].…”

Section: Ftir Analysismentioning

confidence: 94%

Structural and optical properties of electrohydrodynamically atomized TiO2 nanostructured thin films

et al. 2012

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In this paper, we report an alternate technique for the deposition of nanostructured TiO 2 thin films using the electrohydrodynamic atomization (EHDA) technique using polyvinylpyrrolidone (PVP) as a stabilizer. The required parameters for achieving uniform TiO 2 films using EHDA are also discussed in detail. X-ray diffraction results confirm that the TiO 2 films were oriented in the anatase phase. Scanning electron microscope studies revealed the uniform deposition of the TiO 2 . The purity of the films is characterized by using Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS), confirming the presence of Ti-O bonding in the films without any organic residue. The optical properties of the TiO 2 films were measured by UV-visible spectroscopy, which shows that the transparency of the films is nearly 85% in the visible region. The current-voltage (I -V ) curve of the TiO 2 thin films shows a nearly linear behavior with 45 m cm of electrical resistivity. These results suggest that TiO 2 thin films deposited via the EHDA method possess promising applications in optoelectronic devices.

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“…Earlier reports based on other noble metal NPs such as silver (Ag) and palladium (Pd) account for this carbonyl group shift. In the case of silver, researchers [53,[57][58][59] PVP to lower frequencies, when metallic silver is introduced into the polymer matrix. The work of Nemamcha et al [48] and Xian et al [50] accounts for the comparable behaviour of carbonyl group shift, when there is an interaction between Pd NPs and PVP.…”

Section: Optical and Structural Studiesmentioning

confidence: 99%

Gold nanoparticles for sensitive detection of hydrogen peroxide: a simple non-enzymatic approach

Sophia

Muralidharan

2015

J Appl Electrochem

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A simple and novel strategy was developed to fabricate hydrogen peroxide (H 2 O 2 ) sensor based on gold nanoparticles (NPs) stabilized in polyvinylpyrrolidone. The formation of polymer-stabilized gold NPs (PSGN) was confirmed by UV-Vis spectroscopy, X-ray diffraction analysis and high-resolution transmission electron microscopy. Fourier transform infrared spectroscopy is used to elucidate the interaction between the polymer and the gold NPs. The electrochemical activities of the PSGN-modified electrode were characterized by cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy. The electrochemical results show remarkable electrocatalytic activity of the PSGN-modified electrode towards H 2 O 2 detection. The modified electrode exhibits a wide linear range with low detection limit of 0.7 lM. The fabricated sensor shows good reproducibility, long-term stability and high selectivity towards other electroactive species as well. Thus the proposed sensor seems to be a potential candidate for developing a simple, rapid and cost-effective enzymeless biosensor.

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Poly(vinyl pyrolidone) coated silver nano powder via displacement reaction

Cited by 42 publications

References 18 publications

Features of the stabilization of silver nanoparticles by carbonyl-containing polymers

Features of the stabilization of silver nanoparticles by carbonyl-containing polymers

Structural and optical properties of electrohydrodynamically atomized TiO2 nanostructured thin films

Gold nanoparticles for sensitive detection of hydrogen peroxide: a simple non-enzymatic approach

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