Electrical and dielectric properties of self-assembled polyaniline on barium sulphate surface

Q1 Earth and Planetary Sciences

Egyptian Journal of Petroleum Pub Date : 2021-12-01 DOI:10.1016/j.ejpe.2021.09.001

K.F. Qasim , M.A. Mousa

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引用次数: 5

Abstract

Solid polymer electrolytes have been broadly studied due to their wide applications in various electrochemical devices. In the present work, the electrical properties of polyaniline and its composites with BaSO₄ have been studied. The polymerization of aniline monomer via the ordinary chemical polymerization process showed an amorphous structure. Whereas, in the presence of BaSO₄ as a seed, the aniline is polymerized in an orthorhombic crystalline structure on the BaSO₄-surface. Two composite samples of PANI and BaSO₄ with different amounts of BaSO₄ (1.5 and 2.5 wt%) were prepared and analyzed using XRD, FT-IR, SEM, and XPS techniques. The ac- electrical studies on the composites showed an enhancement in the electrical conductivity of PANI due to the addition of BaSO₄. Ac- conductivity at frequency 500 kHz, and 100 °C, showed values of 1.9 × 10⁻³, 5.4 × 10⁻⁴, 1.6 × 10⁻¹, and 1.9 × 10⁻¹ S/cm for PANI, BaSO₄, BaSO₄/PANI 1.5 wt%, and BaSO₄/PANI 2.5 wt%, respectively.

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硫酸钡表面自组装聚苯胺的电学和介电性能

固体聚合物电解质因其在各种电化学器件中的广泛应用而受到广泛的研究。本文研究了聚苯胺及其与BaSO4复合材料的电学性能。用普通化学聚合法对苯胺单体进行聚合，聚合后的苯胺单体呈无定形结构。然而，当存在BaSO4作为种子时，苯胺在BaSO4表面聚合成正交晶体结构。制备了不同BaSO4含量(1.5和2.5 wt%)的聚苯胺和BaSO4复合样品，并用XRD、FT-IR、SEM和XPS技术对其进行了分析。对复合材料的交流电学研究表明，加入BaSO4后，聚苯胺的电导率有所提高。Ac -电导率在频率500 kHz,和100年 °C,显示值的1.9 × 10−3,5.4 × 10−4,1.6 × 10−1和1.9 × 10−1 S的PANI /厘米,BaSO4, BaSO4 / PANI 1.5 wt %,和BaSO4 / PANI 2.5 wt %,分别。

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来源期刊

Egyptian Journal of Petroleum Earth and Planetary Sciences-Geochemistry and Petrology

CiteScore

7.70

自引率

0.00%

发文量

审稿时长

84 days

期刊介绍： Egyptian Journal of Petroleum is addressed to the fields of crude oil, natural gas, energy and related subjects. Its objective is to serve as a forum for research and development covering the following areas: • Sedimentation and petroleum exploration. • Production. • Analysis and testing. • Chemistry and technology of petroleum and natural gas. • Refining and processing. • Catalysis. • Applications and petrochemicals. It also publishes original research papers and reviews in areas relating to synthetic fuels and lubricants - pollution - corrosion - alternate sources of energy - gasification, liquefaction and geology of coal - tar sands and oil shale - biomass as a source of renewable energy. To meet with these requirements the Egyptian Journal of Petroleum welcomes manuscripts and review papers reporting on the state-of-the-art in the aforementioned topics. The Egyptian Journal of Petroleum is also willing to publish the proceedings of petroleum and energy related conferences in a single volume form.