In situ preparation of poly(ethylene oxide)–SiO2 composite polymer electrolytes

Liu, Y.; Lee, J.Y.; Hong, Liang

doi:10.1016/j.jpowsour.2003.11.026

Cited by 200 publications

(109 citation statements)

References 31 publications

Supporting

Mentioning

105

Contrasting

Unclassified

Order By: Relevance

“…From the figures, we can say that the crystallinity of the polymer has been considerably decreased upon the addition of TiO 2 and the intensity of the crystalline peaks of PMMA decreases and broadens. This reduction in crystallinity upon the addition of TiO 2 is attributed to small particles of TiO 2 changes the chain re-organization and facilitates for higher ionic conduction [15][16][17][18][19] . The average crystallite size is found to be 0.1465 µm.…”

Section: Resultsmentioning

confidence: 99%

Sensing of Acetone Vapours using Polymer Composite

Devikala¹,

Kamaraj²,

Arthanareeswari³

2016

Orient. J. Chem

View full text Add to dashboard Cite

People may develop a headache, fatigue and even narcosis when the concentration of acetone in air is higher than 10,000 ppm. Hence, detecting and measuring acetone concentrations in the workplace or human body are necessary for our safety and health. Gas sensors play vital role in detecting, monitoring and controlling the presence of hazardous and poisonous gases in the atmosphere at very low concentrations. In the present work, a thick film of composite was prepared by using PMMA and TiO 2 (PMTi). Then, the composite's gas sensing behaviour for acetone vapour was tested by measuring the resistance change of the composite at room temperature. An increase in resistance has been observed with a response time of about ten seconds. The PMMA/ TiO 2 (PMTi) composites were characterized by using PXRD, FTIR and SEM. The results show that the thick film of PMTi composite can function as a very good gas sensor for acetone vapours.

show abstract

Section: Resultsmentioning

confidence: 99%

Sensing of Acetone Vapours using Polymer Composite

Devikala¹,

Kamaraj²,

Arthanareeswari³

2016

Orient. J. Chem

View full text Add to dashboard Cite

show abstract

“…It is quite obvious from the Figure 1(b) that, the intensity of the crystalline peaks decreases and broadens. This reduction in crystallinity upon the addition of inert filler is attributed to small particles of inert fillers which changes the chain re-organization and facilitates for higher ionic conduction [34] . respectively.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical studies on inert filler incorporated poly (vinylidene fluoride - hexafluoropropylene) (PVDF - HFP) composite electrolytes

2006

View full text Add to dashboard Cite

The ionic conductivity, thermal stability and lithium transference number have been investigated in composite polymer electrolytes (CPE) of poly(vinylidene fluoride -hexafluoropropylene) (PVDF-HFP) incorporating nano fillers of AlO[OH] n or γ-Al 2 O 3 , with LiClO 4 as salt. The compatibility of the composite polymer electrolyte with lithium metal anode has also been studied. The effect of particle size on the compatibility of Li/ CPE/ Li symmetric cells has also been analyzed.

show abstract

“…One of the important findings of Gozdz and Tarascon was that the addition of highly dispersed silica to the PVdF-HFP matrix significantly enhances the solvent absorption ability, thus leading to a considerable increase in the measured conductivities. The positive effect of various ceramic particles (also Al 2 O 3 , TiO 2 , and others) on the conductivities of dry polymer electrolytes is also well-documented in the literature [18][19][20][21][22][23]. The key factors responsible for the performance of these ceramic additives are believed to be particle size and surface chemistry.…”

Section: Introductionmentioning

confidence: 87%

“…Caillon-Caravanier et al [24] found that the addition of unmodified silica provided better mechanical stability and improved the solvent absorption ability of membranes, thus enhancing the conductivities. In more recent works, Lee et al studied the possibility of generating in situ fine silica particles dispersed in the PEO matrix [21] as well as of functionalization of silica surface with glycol chains [25]. Application of crosslinkable silicas modified with certain methacrylate monomers was also reported [26].…”

Section: Introductionmentioning

confidence: 99%

Precipitated silica as filler for polymer electrolyte based on poly(acrylonitrile)/sulfolane

Kurc

2014

J Solid State Electrochem

View full text Add to dashboard Cite

The aim of the present work was to perform a preliminary study of the physicochemical properties of hybrid organic-inorganic gel electrolytes for Li-ion batteries based on the PAN/TMS -poly(acrylonitrile)/sulfolane -polymeric matrix and surface-modified precipitated silicas. Modifications were done by means of the so-called dry method using silane U-511 3-methacryloxypropyltrimetoxysilane. Scanning electron microscopy (SEM), noninvasive back scattering method (NIBS), specific surface area (BET), the degree of modification of the silica fillers-Fourier-transform infrared spectroscopy (FT-IR), impedance analysis, and charging/ discharging were carried out. It is found that the silica fillers were homogeneously dispersed in the polymeric matrix, which enhanced conductivity and electrochemical stability of porous polymer electrolytes. Applicability of the prepared gel electrolytes for the Li-ion technology was estimated on the basis of specific conductivity measurements. It was shown that modification of the silica surface by the silane causes an increase in the gel-specific conductivity by about 2 orders of magnitude as compared to gel with unmodified silica.

show abstract

In situ preparation of poly(ethylene oxide)–SiO2 composite polymer electrolytes

Cited by 200 publications

References 31 publications

Sensing of Acetone Vapours using Polymer Composite

Sensing of Acetone Vapours using Polymer Composite

Electrochemical studies on inert filler incorporated poly (vinylidene fluoride - hexafluoropropylene) (PVDF - HFP) composite electrolytes

Precipitated silica as filler for polymer electrolyte based on poly(acrylonitrile)/sulfolane

Contact Info

Product

Resources

About