氧化钙修饰氧化石墨烯纳米复合材料储能介质的合成与表征

Aleeza Jamshaid, M. Rani, A. Shah, R. Siddiqui, R. Neffati, A. Chandio, A. Mahmood
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摘要

摘要:本文研究了一种由氧化石墨烯(GO)和氧化钙(CaO)修饰的纳米复合材料的合成和表征,用于储能。采用共沉淀法制备纳米复合材料。通过x射线衍射(XRD)证实了样品中CaO和GO的存在,CaO的晶粒尺寸为18 nm, CaO/GO的晶粒尺寸为9 nm。扫描电子显微镜(SEM)图像显示了分散良好的纳米复合结构,能量色散x射线光谱(EDX)证实了样品中存在Ca, C和O元素。利用傅里叶变换红外光谱(FTIR)分析了纳米复合材料的化学成分和结构性能。紫外可见光谱显示,该纳米复合材料的直接带隙为3.78 eV,表明其在电化学储能和光导器件方面具有潜在的应用前景。Zeta电位测定表明该纳米复合材料具有良好的物理稳定性。这些结果表明,CaO/GO纳米复合材料具有广泛的技术应用前景,特别是在热能储存领域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Calcium oxide decorated graphene oxide nanocomposite as energy storage medium: synthesis and characterization
Abstract The article presents research on the synthesis and characterization of a nanocomposite material consisting of graphene oxide (GO) decorated with calcium oxide (CaO), for the use in energy storage. The co-precipitation method was used to prepare the nanocomposite. The presence of CaO and GO in the sample was confirmed by X-ray diffraction (XRD), which revealed a crystallite size of 18 nm for CaO and 9 nm of CaO/GO. The scanning electron microscopy (SEM) images showed a well-dispersed nanocomposite structure, and energy-dispersive X-ray spectroscopy (EDX) confirmed the presence of Ca, C, and O elements in the sample. Fourier-transform infrared (FTIR) spectroscopy was used to analyze the chemical composition and structural properties of the nanocomposite. UV-visible spectroscopy revealed a direct band gap of 3.78 eV for the nanocomposite, indicating its potential application for use in electrochemical energy storage and photoconductive devices. Zeta potential measurement indicated good physical stability of the nanocomposite. These results suggest that the CaO/GO nanocomposite has promising properties for various technological applications, particularly in the field of thermal energy storage.
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