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30. The impact of zinc ions on electrode material for energy storage in solvothermal-synthesised graphene-zinc oxide nanocomposites.

Author

Ahmad, Imtiaz, Shakoor, Abdul, Ahmad, Waleed, Hussain, Azmat, Aqeela, Iftikhar, Saira, and Ikhioya, Imosobomeh L.

Subjects
*ION energy, *ION bombardment, *ENERGY storage, *ZINC ions, *ENERGY density
Abstract

\nResearch highlightsThe study examines the impact of zinc ions on energy storage in solvothermal-synthesised graphene-zinc oxide nanocomposites. In recent years, there has been extensive research focus on graphene and metal oxides, particularly in heterostructures and composites. These materials have a broad range of applications, like energy storage. Faradaic processes were shown by the observation of redox peaks in the CV analysis of a three-electrode system. The estimated specific capacitances of graphene at scan rates of (1, 50, and 100) mVS−1 were (1250, 562.5, and 390.6) Fg−1. The G-ZnO (2 w%) and G-ZnO (3 w%) gave the specific capacitance of (1354, 750, and 520) Fg−1 and (1422, 818, and 568) Fg−1 at the same scan rates of 1, 50, and 100 mV/s. Applying a potential to the material reveals its pseudo-capacitive properties. The XRD results for G-ZnO (2 w%) and G-ZnO (3 w%) show diffraction peaks at 2θ = 20.56°, 32.95°, 40.69°, 47.41°, 59.02°, and 69.04°, which correspond to the diffraction planes 011, 100, 101, 102, 110, and 200, respectively. The study examines the impact of zinc ions on energy storage in solvothermal-synthesised graphene-zinc oxide nanocomposites.Faradaic processes were confirmed by the observation of redox peaks in the CV analysis of a three-electrode system.The estimation of specific capacitances of graphene was carried out at scan rates of (1, 50, and 100) mVS−1, and it yielded values of (1250, 562.5, and 390.6) Fg−1.The study examines the impact of zinc ions on energy storage in solvothermal-synthesised graphene-zinc oxide nanocomposites.Faradaic processes were confirmed by the observation of redox peaks in the CV analysis of a three-electrode system.The estimation of specific capacitances of graphene was carried out at scan rates of (1, 50, and 100) mVS−1, and it yielded values of (1250, 562.5, and 390.6) Fg−1. [ABSTRACT FROM AUTHOR]

Published
2024
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49. Thermogravimetric analysis for the characterization and comparative analysis of polyvinyl chloride (PVC) wall panel

Author

Hamza Muhammad and Shakoor Abdul

Subjects
polyvinyl chloride (pvc), thermogravimetric, temperature, soft, hard, wpvc, spvc, Engineering (General). Civil engineering (General), TA1-2040
Abstract

In this paper, thermogravimetric analysis of different types/grades of polyvinyl chloride (PVC) wall panel is carried out using thermogravimetric analyzer. The data output from the analyzer is subjected to data analysis software i.e., OriginPro 2018, from which thermal attributes are find out for different grades of PVC wall panel i.e., soft PVC, hard PVC, WPVC and SPVC. The thermogravimetric attributes i.e., onset degradation temperature Ti, final degradation temperature Tf,, reaction interval and the peak temperature TP from the derivative thermogravimetric curve for the four basic types of PVC were comparatively analyzed for the characterization purpose. Beside the thermal characterization, the thermogravimetric analysis also disclosed the compositional attributes of the four types of PVC wall panel. The analysis in this paper characterized the SPVC as the most thermally stable PVC wall panel followed by hard, soft and WPVC.

Published
2023
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