Dielectric relaxations and ion transport study of NaCMC:NaNO3 solid polymer electrolyte films

Supriya K. Shetty; Shreedatta Hegde; V. Ravindrachary; Ganesh Sanjeev; Rajashekhar F. Bhajantri; Saraswati P. Masti

doi:10.1007/s11581-021-04023-y

Dielectric relaxations and ion transport study of NaCMC:NaNO₃ solid polymer electrolyte films

Supriya K. Shetty, Ismayil^*, Shreedatta Hegde, V. Ravindrachary, Ganesh Sanjeev, Rajashekhar F. Bhajantri, Saraswati P. Masti

^*Corresponding author for this work

Department of Physics, Manipal Institute of Technology, Manipal

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

Na⁺ ion-conducting solid polymer electrolyte (SPE) of sodium salt of carboxymethyl cellulose (NaCMC) doped with sodium nitrate (NaNO₃) was developed by solution casting method. FTIR technique confirmed the formation of hydrogen bonding between NO3−anion and functional groups of NaCMC. XRD study revealed the low degree of crystallinity that reduced upon doping. Impedance spectroscopy was adapted in order to analyze the conductivity and dielectric relaxation phenomena of the polymer-salt complex. FTIR deconvolution technique was employed to understand the factor that influences the ionic conductivity in SPE; concentration of mobile ions and ionic mobility both play a vital role. Ion transference number has been found out to be > 0.97 for all samples indicating that the conducting species are primarily ions. The highest ionic conductivity of ̴ 3 × 10⁻³ Scm⁻¹ with the mechanical strength of 30.12 MPa was achieved for a host containing 30 wt.% NaNO₃ at ambient temperature.

Original language	English
Pages (from-to)	2509 - 2525
Number of pages	17
Journal	Ionics
Volume	27
Issue number	6
DOIs	https://doi.org/10.1007/s11581-021-04023-y
Publication status	Published - 06-2021

All Science Journal Classification (ASJC) codes

General Chemical Engineering
General Materials Science
General Engineering
General Physics and Astronomy

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title = "Dielectric relaxations and ion transport study of NaCMC:NaNO3 solid polymer electrolyte films",

abstract = "Na+ ion-conducting solid polymer electrolyte (SPE) of sodium salt of carboxymethyl cellulose (NaCMC) doped with sodium nitrate (NaNO3) was developed by solution casting method. FTIR technique confirmed the formation of hydrogen bonding between NO3−anion and functional groups of NaCMC. XRD study revealed the low degree of crystallinity that reduced upon doping. Impedance spectroscopy was adapted in order to analyze the conductivity and dielectric relaxation phenomena of the polymer-salt complex. FTIR deconvolution technique was employed to understand the factor that influences the ionic conductivity in SPE; concentration of mobile ions and ionic mobility both play a vital role. Ion transference number has been found out to be > 0.97 for all samples indicating that the conducting species are primarily ions. The highest ionic conductivity of ̴ 3 × 10−3 Scm−1 with the mechanical strength of 30.12 MPa was achieved for a host containing 30 wt.% NaNO3 at ambient temperature.",

author = "Shetty, {Supriya K.} and Ismayil and Shreedatta Hegde and V. Ravindrachary and Ganesh Sanjeev and Bhajantri, {Rajashekhar F.} and Masti, {Saraswati P.}",

note = "Funding Information: Open access funding provided by Manipal Academy of Higher Education, Manipal. The authors are thankful to UGC DAE Consortium for Scientific Research (Kolkata Centre), Government of India, for financial assistance in the form of Research Project (Sanction No. UGC-DAE-CSR-KC/CRS/19/MS010/0931/0971 dated 10-05-2019). Publisher Copyright: {\textcopyright} 2021, The Author(s).",

year = "2021",

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doi = "10.1007/s11581-021-04023-y",

language = "English",

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T1 - Dielectric relaxations and ion transport study of NaCMC:NaNO3 solid polymer electrolyte films

AU - Shetty, Supriya K.

AU - Ismayil,

AU - Hegde, Shreedatta

AU - Ravindrachary, V.

AU - Sanjeev, Ganesh

AU - Bhajantri, Rajashekhar F.

AU - Masti, Saraswati P.

N1 - Funding Information: Open access funding provided by Manipal Academy of Higher Education, Manipal. The authors are thankful to UGC DAE Consortium for Scientific Research (Kolkata Centre), Government of India, for financial assistance in the form of Research Project (Sanction No. UGC-DAE-CSR-KC/CRS/19/MS010/0931/0971 dated 10-05-2019). Publisher Copyright: © 2021, The Author(s).

PY - 2021/6

Y1 - 2021/6

N2 - Na+ ion-conducting solid polymer electrolyte (SPE) of sodium salt of carboxymethyl cellulose (NaCMC) doped with sodium nitrate (NaNO3) was developed by solution casting method. FTIR technique confirmed the formation of hydrogen bonding between NO3−anion and functional groups of NaCMC. XRD study revealed the low degree of crystallinity that reduced upon doping. Impedance spectroscopy was adapted in order to analyze the conductivity and dielectric relaxation phenomena of the polymer-salt complex. FTIR deconvolution technique was employed to understand the factor that influences the ionic conductivity in SPE; concentration of mobile ions and ionic mobility both play a vital role. Ion transference number has been found out to be > 0.97 for all samples indicating that the conducting species are primarily ions. The highest ionic conductivity of ̴ 3 × 10−3 Scm−1 with the mechanical strength of 30.12 MPa was achieved for a host containing 30 wt.% NaNO3 at ambient temperature.

AB - Na+ ion-conducting solid polymer electrolyte (SPE) of sodium salt of carboxymethyl cellulose (NaCMC) doped with sodium nitrate (NaNO3) was developed by solution casting method. FTIR technique confirmed the formation of hydrogen bonding between NO3−anion and functional groups of NaCMC. XRD study revealed the low degree of crystallinity that reduced upon doping. Impedance spectroscopy was adapted in order to analyze the conductivity and dielectric relaxation phenomena of the polymer-salt complex. FTIR deconvolution technique was employed to understand the factor that influences the ionic conductivity in SPE; concentration of mobile ions and ionic mobility both play a vital role. Ion transference number has been found out to be > 0.97 for all samples indicating that the conducting species are primarily ions. The highest ionic conductivity of ̴ 3 × 10−3 Scm−1 with the mechanical strength of 30.12 MPa was achieved for a host containing 30 wt.% NaNO3 at ambient temperature.

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Dielectric relaxations and ion transport study of NaCMC:NaNO₃ solid polymer electrolyte films

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