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Vol. 36 No. 1 (2024): Vol 36 Issue 1, 2024

Copyright (c) 2023 Dr G. Sivakumar , Mr V. Balasundaram, Mr A. Sarathkumar, Dr J. Henry , Dr K. Mohanraj

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Structural, Optical, Morphological and Electrical Properties of Cu doped Calcium Stannate Nanoparticles for Electrochemical Performance

https://doi.org/10.14233/ajchem.2024.30672
V. Balasundaram
Department of Physics, Annamalai University, Chidambaram-608002, India
https://orcid.org/0009-0001-7460-2384
G. Sivakumar
Centralised Instrumentation and Service Laboratory, Department of Physics, Annamalai University, Chidambaram-608002, India
https://orcid.org/0000-0002-7564-8501
A. Sarathkumar
Department of Physics, Annamalai University, Chidambaram-608002, India
https://orcid.org/0009-0003-5307-2489
J. Henry
Department of Physics, School of Engineering & Technology, Dhanalakshmi Srinivasan University, Tiruchirappalli-621112, India
https://orcid.org/0000-0002-9006-562X
K. Mohanraj
Department of Physics, School of Basic and Applied Science, Central University of of Tamil Nadu, Thiruvarur-610005, India
https://orcid.org/0000-0002-2154-4491

Corresponding Author(s) : G. Sivakumar

gskdopcisl@gmail.com

Asian Journal of Chemistry, Vol. 36 No. 1 (2024): Vol 36 Issue 1, 2024

Abstract

In this work, co precipitation method was adopted to synthesis Cu (0.01M, 0.02M, and 0.03M) doped CaSnO3 nanoparticles and the structural, optical, morphological and electrochemical characterization were studied using XRD, FTIR, UV–Visible, Photoluminescence, SEM and Cyclic voltammetry with Electrochemical impedance analysis. It is noticed from XRD patterns that the peaks shift towards higher angles attributed to the substitution of Cu2+ ions for Ca2+ ions, and confirms the orthorhombic structure of Cu2+ doped CaSnO3. The average crystallite size is found between 40 – 49 nm for Cu doping. FTIR analysis boosts the confirmation of Cu doping in to the CaSnO3 nanoparticles by the presence of vibrational peaks at 698 cm-1, 622 cm-1, and 581 cm-1 due to Cu-O stretching and the peak 483 cm-1 due to Sn-O stretching vibration. The calculated band gap values are 4.7 eV, 4.8 eV, and 4.9 eV for Cu doping. The PL emission study showed light emission towards the visible region. SEM analysis proved well-formed cubed particles about < 2µm. Specific capacitance values are highest for 0.02 M Cu doped CaSnO3 at about 1694F/g, compared to 572 F/g, 922 F/g, and 1626 F/g for pure, 0.01 M, and 0.03 M Cu doped CaSnO3 particles, respectively, at a scan rate of 10 mV/s.  Overall, these findings indicate that 0.02 M and 0.03 M Cu doped CaSnO3 are promising candidates for energy storage applications.

Keywords

CaSnO3 nanoparticles Co-precipitation Cyclic voltammetry Electrochemical impedance
Balasundaram, V., Sivakumar, G., Sarathkumar, A., Henry , J., & Mohanraj, K. (2023). Structural, Optical, Morphological and Electrical Properties of Cu doped Calcium Stannate Nanoparticles for Electrochemical Performance. Asian Journal of Chemistry, 36(1), 87–92. https://doi.org/10.14233/ajchem.2024.30672
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