Ionic conductivity and electrochemical stability of poly(methylmethacrylate)–poly(ethylene oxide) blend-ceramic fillers composites

Shanmukaraj, Devaraj; Wang, Guoxiu; Murugan, Ramaswamy; Liu, Huan

doi:10.1016/j.jpcs.2007.08.072

Cited by 86 publications

(38 citation statements)

References 30 publications

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“…These peaks are attributed to nano ZrO2 particles as a separate phase 20 . Similar behavior was observed by other researchers [21][22] . …”

Section: Materials Characterizationsupporting

confidence: 91%

Structural and A.C.CONDUCTIVITY Studies of (Pan+naf) Gel Polymer Electrolyte System With Zro2nano Filler for an Electrochemical Cell Applications

2017

RJC

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The effect of ZrO2 filler on the electrical conductivity of the polymer electrolyte (PAN+NaF) was studied. The nanocomposite polymer electrolytes with various compositions of Polyacrylonitrile (PAN), sodium fluoride (NaF) salt, Zirconium oxide (ZrO2) and plasticizing solvents dimethyl formamide (DMF) and ethylene carbonate (EC) are synthesized by solution casting technique. The free-standing, translucent, stretchy with good mechanical strength and 136 micron thick films are formed. The promising structural and complexation changes in polymer electrolytes have been explored by X-ray diffraction (XRD) and Fourier Transforms Infrared (FTIR) techniques. The X-ray diffraction patterns of polyacrylonitrile, NaF, and ZrO2 ceramic filler, indicates the decrease in the degree of crystallinity with increasing concentration of the filler. The surface morphology analyzed with the help of Scanning Electron Microscope (SEM).The electrical properties, i.e., the ionic conductivity of solid polymer electrolytes have been measured as a function of temperature and composition. The maximum ionic conductivity was observed for 4 wt% of ZrO2 at room temperature (303 K) is about 3.69 x 10 -4 S/cm and 4.96 x 10 -3 S/cm at 373K.

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“…These peaks are attributed to nano ZrO2 particles as a separate phase 20 . Similar behavior was observed by other researchers [21][22] . …”

Section: Materials Characterizationsupporting

confidence: 91%

Structural and A.C.CONDUCTIVITY Studies of (Pan+naf) Gel Polymer Electrolyte System With Zro2nano Filler for an Electrochemical Cell Applications

2017

RJC

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“…However, most of the efforts in this direction have not yet been able to provide any significant solution to the problems of concentration polarization and enhancement of ambient conduction properties with acceptable stability for device applications. Nanocomposite formation via intercalation of polymer-salt (PS) complex into nanometric clay channels is presently considered as one of the feasible approach to achieve high end requirements like minimization (if not elimination) of concentration polarization effects, conductivity enhancement, improvement in stability (thermal/mechanical/electrochemical) properties, and single ion conduction [8][9][10]. The ionic conduction in a composite phase depends to a large extent on dissociation of charge carriers (ions) of the salt into free mobile charges (i.e., free cations/anions) [11][12][13][14] such that the interaction between them is minimum in the course of their mobility.…”

Section: Introductionmentioning

confidence: 99%

AC conductivity and relaxation behavior in ion conducting polymer nanocomposite

Sharma

Thakur

2010

Ionics

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We report the ac conductivity and relaxation behavior analysis for a heterogeneous polymer-clay nanocomposite (PNC) having composition (polyacrylonitrile) 8 LiCF 3 SO 3 +x wt.% dodecylamine modified montmorillonite. Charge transport behavior in an ionically conducting PNC has been analyzed systematically and correlated with the macroscopic parameters like polymer glass transition temperature and available free mobile charge carriers. Intercalation of cation coordinated polymer into the nanometric clay channels has been confirmed by high-resolution transmission electron microscopy. The electrical properties of the intercalated PNC films have been studied using complex impedance/admittance spectroscopy. Excellent correlation of relaxation behavior with polymer glass transition temperature (T g ) confirmed the objectives of the work. An analysis of dielectric relaxation indicates that PNC films are lossy when compared with polymer-salt film. This result is a direct outcome of faster ion dynamics leading to strong electrode polarization effect due to the accumulation of charge carriers at the interface.

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“…One of the better approaches to enhance ionic conductivity is to incorporate a plasticizer/inert fillers which results in reduction of ion pairing thereby paving way for an enhanced ionic conductivity. The addition of plasticizers to polymer electrolytes to enhance the electrochemical and mechanical properties has been studied well earlier [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Enhanced ionic conductivity in nano-composite solid polymer electrolyte: (PEG) x LiBr: y(SiO2)

Praveen

Bhat

Damle

2010

Ionics

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In this paper, we report an enhancement in ionic conductivity in a new nano-composite solid polymer electrolyte namely, (PEG) x LiBr: y(SiO 2 ). The samples were prepared, characterized, and investigated by XRD, IR, NMR, and impedance spectroscopy. Conductivity as a function of salt concentration shows a double peak. Five weight percent addition of silica nanoparticles increases the ionic conductivity by two orders of magnitude. Conductivity exhibits an Arrhenius type dependence on temperature. IR study has shown that the existence of nanoparticles in the vicinity of terminal O-H group results in a shift in IR absorption frequency and increase in amplitude of vibration of the terminal O-H group. This might lead to an enhancement in conductivity due to increased segmental motion of the polymer. 7 Li NMR spectroscopic studies also seem to support this. Thus addition of nanoparticle inert fillers still seems to be a promising technique to enhance the ionic conductivity in solid polymer electrolytes.

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Ionic conductivity and electrochemical stability of poly(methylmethacrylate)–poly(ethylene oxide) blend-ceramic fillers composites

Cited by 86 publications

References 30 publications

Structural and A.C.CONDUCTIVITY Studies of (Pan+naf) Gel Polymer Electrolyte System With Zro2nano Filler for an Electrochemical Cell Applications

Structural and A.C.CONDUCTIVITY Studies of (Pan+naf) Gel Polymer Electrolyte System With Zro2nano Filler for an Electrochemical Cell Applications

AC conductivity and relaxation behavior in ion conducting polymer nanocomposite

Enhanced ionic conductivity in nano-composite solid polymer electrolyte: (PEG) x LiBr: y(SiO2)

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