Preparation and electrochemical performance of Ni3S4 nanorods by thermal injection method
1. School of Aviation and Transportation, Jiangsu College of Engineering and Technology, Nantong， Jiangsu 226006, China; 2. Nantong Institute of Materials Engineering Technology, Nanjing University, Nantong， Jiangsu 226000, China; 3. Department of Basic Sciences, Mathematics and Humanities, Dawood University of Engineering and Technology, Karachi 74800, Pakistan; 4. College of Mechanical Engineering, Nantong Vocational University, Nantong, Jiangsu 226007, China; 5. College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, China
Abstract：To solve the problem that the specific capacitance of the electrode was decreased rapidly after running for a period of time, the Ni3S4 nanorods with excellent electrochemical performance and with size of about 100 nm were synthesized by thermal injection method. The results show that the preparation of small nanomaterials as electrode material of supercapacitor is conducive to the rapid infiltration of electrolyte during the reaction process, and the electrochemical performance can be further improved. The prepared Ni3S4 nanorods can work stably in the voltage range from 0 to 055 V. When the current density is 1 A·g-1, the specific capacity reaches 1 097 F·g-1. When the current density is 20 A·g-1, the specific capacity still remains about 740 F·g-1. The retention rate of the material can reach 91% when it is tested for 10 000 cycles at 10 A·g-1.
