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https://hdl.handle.net/20.500.11851/11527
Title: | Photo-supercapacitors based on zinc oxide/MXene paper dual acting electrodes | Authors: | Colak, T.O. Altaf, C.T. Yesilbag, F.N.T. Yesilbag, Y.O. Yildirim, I.D. Erdem, E. Misirlioglu, F.B. |
Keywords: | MXene Photo-supercapacitor Solar energy Zinc oxide Capacitance Electrodes II-VI semiconductors Irradiation Redox reactions Solar energy Surface reactions Zinc oxide Double layer formation Dual electrodes Energy density Higher energy density Maximum power Mxene Photo-supercapacitor Power densities Self-powering ZnO nanoflakes Supercapacitor |
Publisher: | Elsevier Ltd | Abstract: | Photo-supercapacitors (PSCs) have great potential as devices that enable both the conversion and storage of solar energy. However, it remains challenging to design new dual-acting electrodes providing high energy density and capacitance with self-powering capacity. Herein, we successfully prepared dual electrodes using ZnO-nanoflake and Ti3C2Tx-based MXene paper. By utilization of the MXene to the PSC device, capacitive contribution to the total capacitance increased ∼4 times compared to the bare ZnO-nanoflake-based PSC due to the surface redox reactions and electrically double layer formation. Maximum energy and power density of 57.3 μWhcm−2 and 11.1 mWcm−2, respectively were obtained for ZnO/MXene//MXene-PSC@UV irradiation and at a 2.5 V. Areal capacitance of this device calculated from CV was as high as 151.5 mFcm−2. Moreover, the ZnO/MXene//MXene-PSC device was highly stable over 10,000 GCD cycles with 100 % CE and 98 % Cp-retention under daylight. © 2024 Elsevier Ltd | URI: | https://doi.org/10.1016/j.est.2024.111274 https://hdl.handle.net/20.500.11851/11527 |
ISSN: | 2352-152X |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection |
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