Kappa-carrageenan for benign preparation of CdSeNPs enhancing the electrochemical measurement of AC symmetric supercapacitor device based on neutral aqueous electrolyte

Ali A Keshk; Nadia H Elsayed; Mohsen M Zareh; Duna A K Alenazi; S Said; Asma Obaidallah Alatawi; Raghad K Albalawi; Mahmoud Maher; Samar M Algabry; Kamel Shoueir

doi:10.1016/j.ijbiomac.2023.123620

Kappa-carrageenan for benign preparation of CdSeNPs enhancing the electrochemical measurement of AC symmetric supercapacitor device based on neutral aqueous electrolyte

Int J Biol Macromol. 2023 Apr 15:234:123620. doi: 10.1016/j.ijbiomac.2023.123620. Epub 2023 Feb 10.

Authors

Affiliations

¹ Department of Chemistry, Faculty of Science, University of Tabuk, 71474 Tabuk, Saudi Arabia. Electronic address: akeshk@ut.edu.sa.
² Department of Chemistry, Faculty of Science, University of Tabuk, 71474 Tabuk, Saudi Arabia; Department of Polymers and Pigments, National Research Centre, Dokki, Cairo 12311, Egypt.
³ Department of Chemistry, Faculty of Science, Zagazig University, Zagazig, Egypt.
⁴ Department of Chemistry, Faculty of Science, University of Tabuk, 71474 Tabuk, Saudi Arabia.
⁵ Physics Department, Faculty of Science, University of Tabuk, 71421, Saudi Arabia; Physics Department, Faculty of Science, Benha University, Benha, Egypt.
⁶ Department of Chemistry, University College Alwajh, University of Tabuk, Tabuk 71421, Saudi Arabia.
⁷ Mechatronics Department, Institute of Engineering and Technology, Al-Mahalla-El-Kobra, Egypt.
⁸ Institute of Nanoscience & Nanotechnology, Kafrelsheikh University, 33516 Kafrelsheikh, Egypt.
⁹ Institute of Nanoscience & Nanotechnology, Kafrelsheikh University, 33516 Kafrelsheikh, Egypt; Institut de Chimie et Procédés pour l'Énergie, l'Environnement et la Santé (ICPEES), CNRS UMR 7515-Université de Strasbourg, 25 rue Becquerel, 67087 Strasbourg, France. Electronic address: kamel_rezk@nano.kfs.edu.eg.

PMID: 36773863
DOI: 10.1016/j.ijbiomac.2023.123620

Abstract

This study presents the development of an electrochemical supercapacitor with a cadmium selenide nanoparticles (CdSeNPs) electrode utilizing a straightforward and economical method based on kappa-carrageenan (κ-CGN). The structural, morphological, and optical characteristics of CdSeNPs were assessed. Activated carbon (AC) and green-prepared CdSeNPs were easily mixed to achieve excellent electrochemical properties. The nanoelectrode (AC@CdSe) was tested in an aqueous electrolyte of sodium sulfate (Na₂SO₄) with a concentration of 1 Molar. Specific capacitance (Csp) for the AC electrode and the AC@CdSe electrode at 1 A g^-1 was calculated to be 103 and 480 F g^-1, respectively. Besides, the symmetric supercapacitor AC@CdSe/AC@CdSe device has a high specific energy of 52 Wh kg^-1 and a maximum specific power of 2880 W kg^-1, with a specific capacitance of 115.5 F g^-1. With a coulombic efficiency of between 82 % and 100 %, the device continues to maintain excellent capacitance after 10.000 cycles.

Keywords: Electrochemical analysis; Green synthesis of CdSeNPs; Kappa-carrageenan; Polygonal structure; Surface texture.

MeSH terms

Carrageenan
Charcoal*
Electrolytes
Nanoparticles*

Substances

Carrageenan
cadmium selenide
Charcoal
Electrolytes