Dielectric spectroscopy characterization of Na<inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msup><mrow></mrow><mrow><mo>+</mo></mrow></msup></math></inline-formula> ion-conducting polymer nanocomposite system PEO–PVP–NaIO<sub>4</sub>–TiO<sub>2</sub>

Georgi B. Hadjichristov; Daniela G. Kovacheva; Yordan G. Marinov; Daniela B. Karashanova; Todor E. Vlakhov; Nicola Scaramuzza

doi:10.1142/S2010135X23500212

Journal of Advanced Dielectrics, Volume. 14, Issue 1, 2350021(2024)

Dielectric spectroscopy characterization of Na $^{+}$ ion-conducting polymer nanocomposite system PEO–PVP–NaIO₄–TiO₂

Georgi B. Hadjichristov1,*... Daniela G. Kovacheva2, Yordan G. Marinov1, Daniela B. Karashanova3, Todor E. Vlakhov1 and Nicola Scaramuzza4 |Show fewer author(s)

Author Affiliations

¹Georgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko, Chaussee Blvd., BG-1784 Sofia, Bulgaria

²Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., 11 bd., BG-1113 Sofia, Bulgaria

³Institute of Optical Materials and Technologies, “Acad. Jordan Malinowski”, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., bl., 109, BG-1113 Sofia, Bulgaria

⁴Dipartimento di Fisica, Università degli Studi della Calabria, Via P. Bucci, Cubo 33B, Rende (CS), IT-87036, Italy

show less

We studied the effect of titanium dioxide (TiO₂) nanoparticles (NPs) on dielectric behavior of Na $^{+}$ ion-conducting salt-complexed polymer nanocomposite system formed from a binary polymer blend of poly(ethylene oxide) (PEO) and polyvinyl pyrrolidone (PVP), with the addition of both sodium metaperiodate (NaIO₄) at concentration 10wt.% and TiO₂ NPs of size ∼10nm, at concentrations 1, 2, 3, 4 and 5wt.%. Free standing nanocomposite PEO/PVP/NaIO₄/TiO₂ films (150 $μ$ m) were characterized at room-temperature by analyzing their complex electrical impedance and dielectric spectra in the range 1Hz–1MHz. At the concentration of 3wt.% of TiO₂ NPs, both ion conductivity and dielectric permittivity of the PEO/PVP/NaIO₄/TiO₂ ion-conducting dielectrics reach an enhancement by more than one order of magnitude as compared to nanoadditive-free case.

Note: This section is automatically generated by AI . The website and platform operators shall not be liable for any commercial or legal consequences arising from your use of AI generated content on this website. Please be aware of this.

Keywords

Dielectric properties KWW model nanocomposites sodium-ion-polymer electrolyte systems titanium dioxide (TiO₂) nanoparticles

Tools

Get Citation

Copy Citation Text

Georgi B. Hadjichristov, Daniela G. Kovacheva, Yordan G. Marinov, Daniela B. Karashanova, Todor E. Vlakhov, Nicola Scaramuzza. Dielectric spectroscopy characterization of Na $^{+}$ ion-conducting polymer nanocomposite system PEO–PVP–NaIO₄–TiO₂[J]. Journal of Advanced Dielectrics, 2024, 14(1): 2350021

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites