Design and optimization of CdS-CeO₂ composite electrodes for enhanced electrochemical performance for asymmetric supercapacitors.
- 1School of Physics and Electronic Information, Yunnan Normal University 768, Juxian Street Kunming 650500 Yunnan China [email protected].
- 2Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University P. O. Box 84428 Riyadh 11671 Saudi Arabia.
- 3Department of Physics, Hazara University Mansehra 21300 Pakistan.
Abstract
The advance of high-performance energy storage devices (ESD) is critical for modern semiconductor technology, rechargeable vehicles, and renewable energy integration. In this work, a CdS-CeO₂ composite was successfully synthesized via a hydrothermal method and investigated as an electrode material for an asymmetric supercapacitor (ASCs). The CdS-CeO₂ composite leverages the high redox activity and structural stability of CeO₂ along with the enhanced electrical conductivity and charge transport of CdS. Structural and morphological characterization using XRD, BET surface analysis, SEM, and EDX mapping confirmed the formation of a well-dispersed, hierarchical composite with abundant electro active sites. Electrochemical measurements revealed that the CdS-CeO₂ electrode delivers a specific capacitance of 476 F g⁻¹ at 1 A g⁻¹, along with good rate performance and outstanding long-term stability, retaining 95.83% of its initial capacitance after 15 000 charge-discharge cycles. The asymmetric supercapacitor ASC (CdS-CeO₂//AC) exhibited a highest energy density of 57.74 Wh kg⁻¹, and power density of 6298 W kg⁻¹, indicating the effectiveness of the CdS incorporation in enhancing the electrochemical performance. These results highlight the potential of oxide-sulfide composite engineering in designing next-generation electrodes for high-performance ASCs.
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BibTeX
@article{riaz2026design,
title = {{Design and optimization of CdS-CeO₂ composite electrodes for enhanced electrochemical performance for asymmetric supercapacitors.}},
author = {Junaid Riaz and Muhammad Arif and Samira Elaissi and Amina Bibi},
journal = {RSC advances},
year = {2026},
month = oct,
doi = {10.1039/d6ra07046a},
url = {https://europepmc.org/article/MED/42836151},
note = {CC BY-NC},
}
RIS
TY - JOUR
TI - Design and optimization of CdS-CeO₂ composite electrodes for enhanced electrochemical performance for asymmetric supercapacitors.
AU - Junaid Riaz
AU - Muhammad Arif
AU - Samira Elaissi
AU - Amina Bibi
PY - 2026
DA - 2026/10/05
JO - RSC advances
DO - 10.1039/d6ra07046a
UR - https://europepmc.org/article/MED/42836151
AB - The advance of high-performance energy storage devices (ESD) is critical for modern semiconductor technology, rechargeable vehicles, and renewable energy integration. In this work, a CdS-CeO₂ composite was successfully synthesized via a hydrothermal method and investigated as an electrode material for an asymmetric supercapacitor (ASCs). The CdS-CeO₂ composite leverages the high redox activity and structural stability of CeO₂ along with the enhanced electrical conductivity and charge transport of CdS. Structural and morphological characterization using XRD, BET surface analysis, SEM, and EDX mapping confirmed the formation of a well-dispersed, hierarchical composite with abundant electro active sites. Electrochemical measurements revealed that the CdS-CeO₂ electrode delivers a specific capacitance of 476 F g⁻¹ at 1 A g⁻¹, along with good rate performance and outstanding long-term stability, retaining 95.83% of its initial capacitance after 15 000 charge-discharge cycles. The asymmetric supercapacitor ASC (CdS-CeO₂//AC) exhibited a highest energy density of 57.74 Wh kg⁻¹, and power density of 6298 W kg⁻¹, indicating the effectiveness of the CdS incorporation in enhancing the electrochemical performance. These results highlight the potential of oxide-sulfide composite engineering in designing next-generation electrodes for high-performance ASCs.
SN - 2046-2069
ER -