Electrochemical Performance of Zn-Al Double Layered Hydroxide for Supercapacitor Application

3rd Annual International Workshop on Materials Science and Engineering

Wen, Yang^1 ; Zhao, Yu^1 ; Lu, Lu^1 ; Zhang, Shuo Jia^1 ; Xu, Bing^1

Liaoning Provincial Key Laboratory of New Energy Battery, Dalian Jiaotong University, Huanghe Road 794#, Dalian, China^1

关键词: Coprecipitation method;    Double layered;    Electrochemical performance;    Pure zn;    Specific capacitance;    Supercapacitor application;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/250/1/012055/pdf
DOI  :  10.1088/1757-899X/250/1/012055

来源: IOP

【 摘 要 】

Zn-Al double layered hydroxide (Zn-Al-LDH) was synthesized by a facile coprecipitation method. The morphology and microstructure of samples were characterized by X-ray diffraction (XRD) and Scanning electron microscope (SEM), respectively. The results show that the sample is uniform nanosheet with the diameter of ∼400 nm and the thickness of ∼80 nm. XRD characterization confirms that it is Zn6A12(OH)16CO3.4H2O and belongs to Rhombohedral crystallographic system. Electrochemical performances of the sample were investigated by cyclic voltammery (CV) and charge/discharge. The Pure Zn-Al-LDH nanocomposites achieves a specific capacitance of 37.0 F g-1at the current density of 1.0 A/g.