TY - JOUR
T1 - Effect of dopant on ion-dynamics of sodium ion-based flexible polyblend electrolyte for electrochemical device application
AU - Cyriac, Vipin
AU - Ismayil, null
AU - Sudhakar, Y. N.
AU - Mishra, Kuldeep
AU - Rojudi, Z. E.
AU - Murari, M. S.
AU - Noor, I. M.
N1 - Funding Information:
Vipin Cyriac expresses gratitude to the Directorate of Minorities, Bengaluru, Government of Karnataka, for their financial support in the form of the Directorate of Minorities Fellowship for Minority Students. The authors would like to thank Dr. Saraswati. Masti, Department of Chemistry, Karnataka Science College, Dharwad, Karnataka, India, for providing the UTM for mechanical property measurements.
Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2024/1
Y1 - 2024/1
N2 - This work examines the impact of NaNO3 salt on a NaAlg: PVA blend polymer, focusing on charge carrier properties, such as number density (n), mobility (μ), and diffusion coefficient (D). It is found that the addition of NaNO3 increased the room temperature conductivity from (6.12±0.15) × 10−8 S cm−1 (PNN0, salt-free) to (6.50±0.03) × 10−6 S cm−1 (PNN15, 15 wt.% NaNO3), influenced by increasing n compared to µ. Temperature-dependent conductivity revealed a significant influence of both n and μ on electrolyte conductivity, and the ion dynamics were explored using various formalisms. XRD studies showed reduced crystallinity owing to the interaction of Na+ and NO3− with -OH groups, as confirmed by IR spectroscopy. Scanning electron microscopy confirmed salt deposits at higher concentrations. However, sufficient mechanical strength was observed for the optimally conducting sample. Obtained results showed the potential applications of the sample in electrochemical devices.
AB - This work examines the impact of NaNO3 salt on a NaAlg: PVA blend polymer, focusing on charge carrier properties, such as number density (n), mobility (μ), and diffusion coefficient (D). It is found that the addition of NaNO3 increased the room temperature conductivity from (6.12±0.15) × 10−8 S cm−1 (PNN0, salt-free) to (6.50±0.03) × 10−6 S cm−1 (PNN15, 15 wt.% NaNO3), influenced by increasing n compared to µ. Temperature-dependent conductivity revealed a significant influence of both n and μ on electrolyte conductivity, and the ion dynamics were explored using various formalisms. XRD studies showed reduced crystallinity owing to the interaction of Na+ and NO3− with -OH groups, as confirmed by IR spectroscopy. Scanning electron microscopy confirmed salt deposits at higher concentrations. However, sufficient mechanical strength was observed for the optimally conducting sample. Obtained results showed the potential applications of the sample in electrochemical devices.
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U2 - 10.1016/j.materresbull.2023.112498
DO - 10.1016/j.materresbull.2023.112498
M3 - Article
AN - SCOPUS:85169040333
SN - 0025-5408
VL - 169
JO - Materials Research Bulletin
JF - Materials Research Bulletin
M1 - 112498
ER -