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Dr Ammar TIGHEZZA

Associate Professor

Faculty

كلية العلوم
2 A 146 Building 5
publication
Journal Article
2022

Effectively constructed by the interior and interface coexisting design of cobalt-doped NiFe2S4 nanosheets for high-performance supercapacitors

International Journal of Energy Research

The doped metal materials/transitional metal sulfides have been regarded as unique superior-efficient electrodes because of their high Faradic activities. Nevertheless, the aggregation limits and poorer rate performances critically hinder the supercapacitors (SCs). Herein, the interior and interface coexisting design of cobalt-doped NiFe2S4 nano sheets on nickel foam (Co- NiFe2S4) was constructed and synthesized via a two-step hydrothermal approach. The Co- NiFe2S4 served as the skeleton supports and conductive pathways and supplies plentifully coordination ions to block the aggregations and enhance the nanostructured stabilities. The results are auspicious: the electrodes showed quick ion and electron transportation rates and many electroactive surface regions, evidencing their superior electrochemical performances. Regarding the superiority in physical and chemical characterizations, the Co-NiFe2S4 composite was attracted more attention than other SCs applications because of their suitable morphology for electron/ion transportations, safety, numerous redox-active sites with varied oxidational states, lower-cost with nontoxicity, and high charge-discharge rates in electrochemical activities. Especially, the Co-NiFe2S4 electrode demonstrated superior electrochemical performance of specific capacity of 1075.4 C g−1 (2329.6 F g−1) at 1 A g−1 and capacity retention of around 96.8% after 5000 long-cycles at 3 A g−1. These results signify that the ternary construction, Co-NiFe2S4 composite is a superior capacitor at higher stabilities with a very less loss in capacity retentions, which is a promising electrode as a nanomaterial for high-performance SCs that could be applicable in the commercial field soon.

Publication Work Type
Research
Publisher Name
Wiley
more of publication
publications

We investigate the structural, optoelectronic, and thermoelectric properties of halide double perovskite X2GeSnI6 (X = Rb, Cs) compounds employing the full potential linearized augmented plane…

by Malak Azmat Ali, M. Musa Saad H.‑E., Ammar M. Tighezza, Shaukat Khattak, Samah Al‑Qaisi, Muhammad Faizan
2023
publications

The research was done on the creation and use of bi-metal sulfide thin film, Nd2S3:Ni9S8. 41 nm-sized crystallites with 80% crystallinity were found in the material. The evaluated optical…

by Mahwash Mahar Gul, Khuram Shahzad Ahmad, Andrew Guy Thomas, Ammar Mohamed Tighezza
2023
publications

Perovskite solar cell (PSC) technology is extensively used in commercial sectors, but concerns about the use of lead and degradable components in cells are increasing.

by Farhana Bari Sumona, Muhammad Kashif, Eli Danladi, Ammar M. Tighezza, Nahid Al-Mahmud, Gazi F. I. Toki, Rahul Pandey, and M. Khalid Hossain
2023