Structural, optical and electrochemical properties of reduced graphene oxide-polyaniline composites for supercapacitor applications

IF 2.8 4区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Materials Science: Materials in Electronics Pub Date : 2024-11-07 DOI:10.1007/s10854-024-13806-8
Zeeshan Mustafa, Dhruva Kumar, B. B. Pradhan, Bibhu Prasad Swain, Ranjan Kumar Ghadai
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Abstract

In the present work, polyaniline-reduced graphene oxide (PANI-rGO) nanocomposite films were synthesized by varying their concentration in composites of rGO nanosheets, and ammonium sulfate (NH4)2SO4 was used as a catalyst. The microstructural, structural network, optical, compositional, and electrochemical properties of rGO/PANI nanocomposites were investigated using scanning electron microscopy X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), UV–Vis spectroscopy, X-ray photoelectron spectroscopy (XPS), and cyclic voltammetry (CV). The XRD peaks obtained for both PANI and G/PANI Nanocomposite at 14.5, 19.87, and 25.6, with the corresponding planes of (011), (020), and (200), confirm the successful synthesis of both PANI and G/PANI nanocomposites, resulting in a more ordered structure with high crystallinity during polymerization. FTIR, UV–Vis, and Raman spectroscopy results show that strong π − π interactions aided in the uniform distribution of PANI on the rGO nanosheets. Furthermore, the XPS results demonstrate the presence of C-H, N–H, C–C, and C-O bonds, corroborating the FTIR and Raman spectroscopy findings. The electrochemical properties of the PANI-rGO confirm its possible applications as a promising electrode material for high-performance supercapacitors.

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用于超级电容器的还原氧化石墨烯-聚苯胺复合材料的结构、光学和电化学特性
本研究通过改变聚苯胺-还原氧化石墨烯(PANI-rGO)在 rGO 纳米片复合材料中的浓度,以硫酸铵(NH4)2SO4 为催化剂,合成了聚苯胺-还原氧化石墨烯(PANI-rGO)纳米复合薄膜。使用扫描电子显微镜 X 射线衍射 (XRD)、拉曼光谱、傅立叶变换红外光谱 (FTIR)、紫外可见光谱、X 射线光电子能谱 (XPS) 和循环伏安法 (CV) 研究了 rGO/PANI 纳米复合材料的微观结构、结构网络、光学、成分和电化学性能。PANI 和 G/PANI 纳米复合材料的 XRD 峰分别位于 14.5◦、19.87◦ 和 25.6◦,对应的平面分别为 (011)、(020) 和 (200),这证实了 PANI 和 G/PANI 纳米复合材料的成功合成,在聚合过程中形成了更有序的高结晶度结构。傅立叶变换红外光谱、紫外可见光谱和拉曼光谱结果表明,强烈的 π - π 相互作用有助于 PANI 在 rGO 纳米片上的均匀分布。此外,XPS 结果表明存在 C-H、N-H、C-C 和 C-O 键,证实了傅立叶变换红外光谱和拉曼光谱的研究结果。PANI-rGO 的电化学特性证实了它有可能被用作高性能超级电容器的电极材料。
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来源期刊
Journal of Materials Science: Materials in Electronics
Journal of Materials Science: Materials in Electronics 工程技术-材料科学:综合
CiteScore
5.00
自引率
7.10%
发文量
1931
审稿时长
2 months
期刊介绍: The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.
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