NiFeO/Poly(1,6-heptadiyne) Nanocomposite Energy-Storage Device for Electrical and Electronic Applications.

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ID: 22879
2018
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Abstract
In present study, we have synthesized intrinsically conductive poly(1,6-heptadiynes) via cyclopolymerization technique, and further it is composited with the NiFeO to fabricate pellet for electrical and electronic applications. The synthesized polymer - characteristics were obtained by two-probe measurement technique. The results suggest that the high current density of the synthesized polymer was in the range of 1.2 × 10-3.1 × 10 S/cm, which attributes to the potentially induced hoping charge-carrier mechanism within the conjugated poly(1,6-heptadiynes). NiFeO and NiFeO/poly(1,6-heptadiynes) composite pellets were fabricated by utilizing hydraulic pelletizer. The sample's electrical measurements were performed via broad-band dielectric impedance spectroscopy, wherein the composite permittivity was about ε = 45 (100 Hz to 10 kHz), which attributes to the NiFeO and poly(1,6-heptadiynes) phases; further, this describes the capacitance, which improved from 0.3 to 0.1 pf at 1 kHz. Also, these results suggest the reduced equivalent series resistance (72.1-1 MHz), which attributes to the incorporated intrinsically conducting poly(1,6-heptadiynes). Thus, the reduced dissipation factor (DF = 0.0032) was observed from impedance characteristics of a nanocomposite. Moreover, the improved -factor was observed, which was about 8.1-310 at 1 kHz. The resistance and capacitance time constant was also computed to be about 0.29 μs at 1 kHz for NiFeO/poly(1,6-heptadiynes) nanocomposite. Furthermore, the nanocomposite-enabled capacitor gravimetric energy density and power densities were calculated to be about 0.00575 mJ/g and 9.91 W/g, respectively. Additionally, thermal threatening, that is, heat generated within the capacitor, is also estimated for the nanocomposite capacitor, which improved from 0.0006 to 8.9 × 10, and these results suggest improved nanocomposite thermal stability. Further, the delineated quantities were compared to the commercially available configurations of tantalum hybrid capacitors and Al and Ta electrolytic capacitors, including carbon electrochemical capacitors, which suggest that the reported nanocomposites could be a suitable candidate for electrical and electronic applications.
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magisetty2018nifeopoly16heptadiyneacs Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Magisetty, RaviPrakash;Kumar, Pawan;Kumar, Viresh;Shukla, Anuj;Kandasubramanian, Balasubramanian;Shunmugam, Raja;
Journal ACS omega
Year 2018
DOI
10.1021/acsomega.8b02306
URL
Keywords Keywords not found

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