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| Format: | Recurso digital |
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Zenodo
2026
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| Online-Zugang: | https://doi.org/10.5281/zenodo.18690930 |
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Inhaltsangabe:
- <p><span>In this work, a sol-gel method for preparing nanosized SiO</span><span>2 </span><span>for supercapacitor<br>applications. Tetraethyl orthosilicate was used as precursor and PVP as surfactant for the<br>synthesis of SiO</span><span>2 </span><span>nanoparticles. The effect of annealing temperature on prepared SiO</span><span>2<br></span><span>nanoparticles (NPs) was examined through the thermal, structural, morphological, and<br>electrochemical characteristics. The thermal properties of as-prepared SiO</span><span>2 </span><span>nanoparticles were<br>evaluated using TG-DTA analysis. The X-ray diffraction result suggested that the prepared<br>nanoparticles had amorphous structure and the average crystallite size decreased with increasing<br>annealing temperatures. The SEM micrographs showed the SiO</span><span>2 </span><span>NPs appeared as an aggregated<br>bundle-like structure. The EDX analysis confirmed the existence of elements of Si and O. The</span> <span>oxidation and reduction peaks revealed that the SiO</span><span>2 </span><span>NPs had a supercapacitor nature by cyclic<br>voltammetry and achieved high specific capacitance value of 356 Fg</span><span>-1 </span><span>at scan rate of 5 mV/s.<br>These findings suggest that SiO</span><span>₂ </span><span>NPs, which offer a cost-effective and scalable approach, are<br>promising candidates for supercapacitor electrodes</span> <br><br></p>