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| Home > Publications database > Local Structure Distortion in Mn, Zn Doped Cu$_2$V$_2$O$_7$: Supercapacitor Performance and Emergent Spin-Phonon Coupling > print |
| Home > Publications database > Local Structure Distortion in Mn, Zn Doped Cu$_2$V$_2$O$_7$: Supercapacitor Performance and Emergent Spin-Phonon Coupling > print |
| 001 | 627003 | ||
| 005 | 20250715151506.0 | ||
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| 100 | 1 | _ | |a Das, Ashok |0 P:(DE-H253)PIP1087186 |b 0 |
| 245 | _ | _ | |a Local Structure Distortion in Mn, Zn Doped Cu$_2$V$_2$O$_7$: Supercapacitor Performance and Emergent Spin-Phonon Coupling |
| 260 | _ | _ | |a Weinheim |c 2025 |b Wiley-VCH |
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| 520 | _ | _ | |a Supercapacitors are rapidly gaining attention as next-generation energy storage devices due to their superior power and energy densities. This study pioneers the investigation of Mn/Zn co-doping in š¶-Cu$_2$V$_2$O$_7$ (CVO) to enhance its performance as a supercapacitor electrode material. Structural and local Structural properties of Mn/Zn co-doped CVO have been investigated through X-ray Diļ¬raction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), X-ray Photoelectron Spectroscopy (XPS), and X-ray Absorption Spectroscopy (XAS), revealing signiļ¬cant distortions that enhance supercapacitor performance. The optimized sample demonstrates a remarkable speciļ¬c capacitance of 1950.95 Fg$^{ā1}$, energy density of 97.54 Whkg$^{ā1}$, and enhanced capacitive retention,attributedtotheuniqueCucoordinationenvironmentandimproved charge transfer kinetics. Temperature-dependent Raman spectroscopy unveils spin-phonon coupling (SPC), particularly in VO$_4$ stretching modes, supported by magnetic measurements that shows a reduction in the NĆ©el temperature and the emergence of zero ļ¬eld-cooled (ZFC) exchange bias (EB). This work is the ļ¬rst to report the impact of local structure distortion on both supercapacitor performance and SPC in CVO, oļ¬ering a novel strategy for developing high-performance energy storage materials with spintronics potential. In addition, the assembled symmetric optimized supercapacitor shows a high energy density of 93.32 Whkg$^{ā1}$ and excellent cycling stability. A prototype device incorporating the optimized CVO successfully powers eight commercial LED bulbs, demonstrating its practical application potential. |
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| 700 | 1 | _ | |a Banerjee, Aritra |0 P:(DE-H253)PIP1081753 |b 1 |
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| 700 | 1 | _ | |a Ali, Mir Sahanur |b 3 |
| 700 | 1 | _ | |a Layek, Rashbihari |b 4 |
| 700 | 1 | _ | |a Karmakar, Srikanta |b 5 |
| 700 | 1 | _ | |a Sinha, Pritam |b 6 |
| 700 | 1 | _ | |a Kumbhakar, Pathik |b 7 |
| 700 | 1 | _ | |a Chattopadhyay, Dipankar |b 8 |
| 700 | 1 | _ | |a Bandyopadhyay, Sudipta |0 P:(DE-H253)PIP1081758 |b 9 |e Corresponding author |
| 773 | _ | _ | |a 10.1002/adma.202416644 |0 PERI:(DE-600)1474949-X |p 2416644 |t Advanced materials |v 37 |y 2025 |x 0935-9648 |
| 856 | 4 | _ | |u https://bib-pubdb1.desy.de/record/627003/files/Local%20Structure%20Distortion%20in%20Mn%2C%20Zn%20Doped.pdf |
| 856 | 4 | _ | |y Published on 2025-03-12. Available in OpenAccess from 2026-03-12. |u https://bib-pubdb1.desy.de/record/627003/files/Post%20refere%20version%20of%20manuscript.pdf |
| 856 | 4 | _ | |y Published on 2025-03-12. Available in OpenAccess from 2026-03-12. |x pdfa |u https://bib-pubdb1.desy.de/record/627003/files/Post%20refere%20version%20of%20manuscript.pdf?subformat=pdfa |
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