Microwave-Tuned Mn-Doped ZnO for All-in-One Supercapacitors: Correlating Defect Chemistry with Electrochemical Behavior DOI Creative Commons
Mohamad Hasan Aleinawi, Ameen Uddin Ammar,

Duygu Şentürk

и другие.

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 698, С. 138012 - 138012

Опубликована: Май 30, 2025

Zinc oxide-based (ZnO) electrode materials have emerged as contenders for heightened cost efficiency, fast charge-discharge prowess, outstanding performance metrics, and remarkable cycle stability in supercapacitor technologies. Among the myriad synthesis techniques, microwave-assisted approach distinguishes itself with an array of advantages, being time-efficient, eco-friendly, adept at providing accurate control over complex ZnO morphology. Introducing ions like into lattice further propels electrochemical supercapacitors superior territories. Hence, this investigation meticulously prepared a series undoped Mn-doped utilizing method across four different microwave powers ranging from 160 to 800 W. Cutting-edge morpho-structural characterization including X-ray diffraction, scanning electron microscopy, paramagnetic resonance, photoluminescence, Raman spectroscopy, were employed delve structure defect centers ZnO-based samples. It has been conclusively demonstrated that concentration is pivotal, offering additional charge carriers without compromising crystallinity while also enhancing diffusion correlated Faradaic redox reactions-thereby escalating supercapacitor's properties. A doping 2% Mn-ions balances structural integrity. This sample achieved specific capacitance 340 F/g, power density 59.7 kW/kg, energy 47.1 Wh/kg. Across board, all samples demonstrate impressive stability, retaining 70% capacity after 5000 cycles. Notably, Mn synthesized W excels 90% retention. distinct behavior attributed transformative influence ion on ZnO's morphological attributes.

Язык: Английский

Microwave-Tuned Mn-Doped ZnO for All-in-One Supercapacitors: Correlating Defect Chemistry with Electrochemical Behavior DOI Creative Commons
Mohamad Hasan Aleinawi, Ameen Uddin Ammar,

Duygu Şentürk

и другие.

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 698, С. 138012 - 138012

Опубликована: Май 30, 2025

Zinc oxide-based (ZnO) electrode materials have emerged as contenders for heightened cost efficiency, fast charge-discharge prowess, outstanding performance metrics, and remarkable cycle stability in supercapacitor technologies. Among the myriad synthesis techniques, microwave-assisted approach distinguishes itself with an array of advantages, being time-efficient, eco-friendly, adept at providing accurate control over complex ZnO morphology. Introducing ions like into lattice further propels electrochemical supercapacitors superior territories. Hence, this investigation meticulously prepared a series undoped Mn-doped utilizing method across four different microwave powers ranging from 160 to 800 W. Cutting-edge morpho-structural characterization including X-ray diffraction, scanning electron microscopy, paramagnetic resonance, photoluminescence, Raman spectroscopy, were employed delve structure defect centers ZnO-based samples. It has been conclusively demonstrated that concentration is pivotal, offering additional charge carriers without compromising crystallinity while also enhancing diffusion correlated Faradaic redox reactions-thereby escalating supercapacitor's properties. A doping 2% Mn-ions balances structural integrity. This sample achieved specific capacitance 340 F/g, power density 59.7 kW/kg, energy 47.1 Wh/kg. Across board, all samples demonstrate impressive stability, retaining 70% capacity after 5000 cycles. Notably, Mn synthesized W excels 90% retention. distinct behavior attributed transformative influence ion on ZnO's morphological attributes.

Язык: Английский

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