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Electrochemical synthesis and characterization of Cu2O nanoparticles: Effect of electrolyte composition

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Abstract

This research studied the effect of electrolyte composition NaCl, Na2SO4 and CTAB (cetyltrimethylammonium bromide, C19H42BrN) on the electrochemical synthesis of Cu2O nanoparticles. The NaCl concentration was varied in three levels of 58.5, 117 and 175.5 (g/L); the Na2SO4 concentration was changed in three levels of 24, 32 and 48 (g/L) and the CTAB concentration was adjusted in four levels of 2, 4, 6 and 15 (g/L). The current density and temperature were kept constant at 0.4 (A/cm2) and 70 °C, respectively and the cathode-anode distance was set at 2.5 cm. The morphology, composition, particle size and distribution of the samples were examined by FESEM, XRD and DLS. The results indicated that increasing the concentration of electrolyte NaCl and Na2SO4 enhanced the purity of Cu2O. The Cu2O crystals were smaller than 100 nm and formed as polycrystalline. Moreover, higher concentration of NaCl than Na2SO4 led to a better result. CTAB effectively inhibited the growth of Cu2O nanoparticles and the particle size decreased with increasing CTAB. The optimal result was achieved in the sample with 4 (g/L) CTAB and 175 (g/L) NaCl. Cu2O nanoparticles with high purity and crystal size of 27.87 nm were produced.

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Authors and Affiliations

  1. Department of Materials Engineering, Saveh Branch, Islamic Azad University, Saveh, Iran

    Hamidreza Ahmadi, Gholamreza Khalaj, Mohammadhossein Moalem, Majid Pourabdollah & Morteza Mahmoudan

  2. Department of Engineering, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran

    Farzad Soleymani

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  1. Hamidreza Ahmadi
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  2. Gholamreza Khalaj
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  3. Farzad Soleymani
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  4. Mohammadhossein Moalem
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  5. Majid Pourabdollah
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  6. Morteza Mahmoudan
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Correspondence to Hamidreza Ahmadi or Gholamreza Khalaj.

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Ahmadi, H., Khalaj, G., Soleymani, F. et al. Electrochemical synthesis and characterization of Cu2O nanoparticles: Effect of electrolyte composition. J Solid State Electrochem (2023). https://doi.org/10.1007/s10008-023-05757-7

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  • DOI: https://doi.org/10.1007/s10008-023-05757-7

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