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https://hdl.handle.net/20.500.11851/11664
Title: | Zinc oxide nanoflake/reduced graphene oxide nanocomposite-based dual-acting electrodes for solar-assisted supercapacitor applications | Authors: | Altaf, Cigdem Tuc Colak, Tuluhan Olcayto Rostas, Arpad Mihai Socaci, Crina Lazar, Mihaela Diana Tudoran, Lucian Barbu Sankir, Mehmet |
Keywords: | [No Keyword Available] | Publisher: | Royal Soc Chemistry | Abstract: | There is an ever-growing requirement for systems that enable both conversion and storage of solar energy in the same device, thereby reducing the need for grid electricity and fossil fuels. Although photo-supercapacitors (PSCs) potentially meet this requirement, it is essential to develop high-performance devices in which conversion and storage can be achieved on the same electrode. This study investigated two-electrode PSC systems based on three-dimensional (3D) zinc oxide (ZnO) nanoflakes/reduced graphene oxide (rGO) nanocomposites to meet the need for in situ solar energy conversion/storage. To better understand the effect of rGO and 3D ZnO nanoflakes separately, three different compositions have been studied, in which the weight percent of rGO changes from 8 to 32%. The energy density increases as the amount of rGO increases, but the composite material loses its light sensitivity above a critical value. Therefore, the electrodes containing 16% rGO exhibited higher performance than those containing 32% and 8% rGO. As a result, the (16%) rGO/ZnO-based PSC exhibited superior performance compared to the other samples, with its ability to maintain 100% of its performance at 40 000 cycles, its areal capacitance of 40 mF cm-2 and energy density values of 22 mu W h cm-2, which were 170% higher than under dark condition measurements. There is an ever-growing requirement for systems that enable both conversion and storage of solar energy in the same device, thereby reducing the need for grid electricity and fossil fuels. | Description: | Rostas, Arpad Mihai/0000-0001-8190-9512; Tuc Altaf, Cigdem/0000-0001-9036-5836; Lazar, Mihaela D./0000-0002-1679-1324 | URI: | https://doi.org/10.1039/d4ya00253a https://hdl.handle.net/20.500.11851/11664 |
ISSN: | 2753-1457 |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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