本文介绍了用于高性能超级电容器应用的基于三聚氰胺的金属有机骨架(MOFs)。三聚氰胺(Me)被用作有机连接体,和三个金属离子钴,镍,和铁(Co,Ni,Fe)被用作中心金属离子来制造所需的MOF材料(Co-Me,Ni-Me,和Fe-Me)。虽然三聚氰胺是制造MOF材料的廉价有机接头,均匀的分子结构可能难以产生。在这项工作中使用了通过适当的实验优化来扩展MOFs分子结构的最有效技术。使用标准技术表征MOF材料。使用衰减的全反射率研究了材料反应的动力学。X射线光电子能谱(XPS),粉末X射线衍射(P-XRD)傅里叶变换红外(ATR-FT-IR)光谱,Brunauer-Emmett-Teller(BET)研究证实了MOFs结构的发展。使用场发射扫描电子显微镜(FE-SEM)研究了所生产材料的表面形态,高分辨率透射电子显微镜(HR-TEM),和原子力显微镜(AFM)。通过XPS分析研究了MOFs中发现的元素,能量色散X射线衍射(EDX),映射,和映射。通过使用紫外-可见吸收光谱检查材料的吸收特性。通过热重分析(TGA)检查材料的热稳定性;这些材料更稳定,根据调查结果,即使在高温下。电化学研究确定了材料的比电容。Co-Me的比电容,Ni-Me,根据三电极布置,在3MKOH电解质中的Fe-Me为1267.36、803.22和507.59F/g@1A-1。双电极装置通过在3MKOH电解质中使用非对称超级电容器来最大化功率和能量密度。Co-Me的功率和能量密度,Ni-Me,和Fe-Me分别为3650.63、2813.21和6210.45Wkg-1,以及68.43、46.32和42.2Whkg-1。根据材料稳定性测试,MOFs在10000次循环后高度稳定。初步结果表明,该材料适用于高端超级电容器用途。
Melamine-based metal-organic frameworks (MOFs) for high-performance supercapacitor applications are described in this paper. Melamine (Me) is employed as an organic linker, and three metal ions cobalt, nickel, and iron (Co, Ni, Fe) are used ascentral metal ions to manufacture the desired MOF materials (Co-Me, Ni-Me, and Fe-Me). While melamine is an inexpensive organic linker for creating MOF materials, homogenous molecular structures can be difficult to produce. The most effective technique for expanding the molecular structures of MOFs through suitable experimental optimization is used in this work. The MOFs materials are characterized using standard techniques. The kinetics of the materials\' reactions are investigated using attenuated total reflectance. X-ray photoelectron spectroscopy (XPS), powder X-ray diffraction (P-XRD), Fourier transform infrared (ATR-FT-IR) spectroscopy, and Brunauer-Emmett-Teller (BET) studies verified the development of the MOFs structure. The surface morphology of the produced materials is investigated using field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HR-TEM), and atomic force microscopy (AFM). The elements found in MOFs are studied via XPS analysis, energy dispersive X-ray diffraction (EDX), mapping, and mapping. The materials\' absorption characteristics were examined by the use of UV-visible absorption spectroscopy. The thermal stability of the materials is examined by thermogravimetric analysis (TGA); these materials are more stable, according to the findings, even at high temperatures. The electrochemical investigation determines the specific capacitance of the materials. The specific capacitance of Co-Me, Ni-Me, and Fe-Me in 3 M KOH electrolyte is 1267.36, 803.22, and 507.59F/g @ 1 A-1, according to the three-electrode arrangement. The two-electrode device maximizes power and energy density by using an asymmetrical supercapacitor in a 3 M KOH electrolyte. The power and energy densities of Co-Me, Ni-Me, and Fe-Me are 3650.63, 2813.21, and 6210.45 W kg-1, and 68.43, 46.32, and 42.2 Wh kg-1, respectively. According to the materials stability test, the MOFs are highly stable after 10,000 cycles. Preliminary results suggest that the materials are suitable for usage in high-end supercapacitor uses.