Electrochemical Characterization and HOMO-LUMO Studies on Fabricated PVB/Graphite and PVB/GO Nanocomposites

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2020-01-01 DOI:10.4152/pea.202002069

Harish Mudila, P. Prasher, Himanshu Kapoor, S. Rana, M. Zaidi

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引用次数: 4

Abstract

Carbonaceous materials are used to generate composites for numerous purposes, due to their extraordinary properties. In this context, we have carried out a study on the modified properties, viz. thermal stability and specific capacitance of the composites fabricated by the introduction of a carbonaceous material (graphite and graphene oxide) into the Polyvinyl Butyral matrix. Since it has excellent adhesibility and dielectric permittivity, and it can be employed as an electrode in sensors, polyvinyl butyral is used in the current investigation, along with carbonaceous materials, for electrochemical and bandgap properties (HOMO-LUMO) studies. Spectroscopic FT-IR, XRD and SEM analyses remark the comprehensive entanglement of the two components. Various fabricated composites show an increased thermal stability, with a percentage of carbonaceous filler, as suggested by TGA. Cyclic voltammetry studies reveal that PVB acts as an excellent binder, and as a good matrix for the charge movement through it, because it has a good level of dielectric permittivity, thus enabling fabricated materials to be developed as good candidates for supercapacitive batteries.

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PVB/石墨和PVB/氧化石墨烯纳米复合材料的电化学表征及HOMO-LUMO研究

碳质材料由于其非凡的性能，被用于多种用途的复合材料。在此背景下，我们通过将碳质材料(石墨和氧化石墨烯)引入聚乙烯醇丁醛基体，对复合材料的热稳定性和比电容进行了改性研究。由于聚乙烯醇具有优异的粘附性和介电介电常数，并且可以用作传感器的电极，因此本研究将聚乙烯醇丁醛与碳质材料一起用于电化学和带隙特性(HOMO-LUMO)研究。FT-IR、XRD和SEM分析表明了两种组分的全面纠缠。TGA结果表明，含碳填料的比例增加了复合材料的热稳定性。循环伏安法研究表明，PVB作为一种优秀的粘合剂，并且作为电荷通过它的良好基质，因为它具有良好的介电常数水平，从而使制造材料成为超级电容电池的良好候选者。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.