Facile and Eco-Friendly Synthesis of Finger-Like Co3O4 Nanorods for Electrochemical Energy Storage

Nanomaterials

Shijiao Sun²  Xiangyu Zhao¹  Meng Yang²  Liqun Ma²  Xiaodong Shen²  Andy (Xueliang) Sun² 

[1] College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China;

关键词: Co₃O₄ nanorods;    electrochemical properties;    lithium ion battery;    supercapacitor;   

DOI  :  10.3390/nano5042335

来源: mdpi

【 摘 要 】

Co₃O₄ nanorods were prepared by a facile hydrothermal method. Eco-friendly deionized water rather than organic solvent was used as the hydrothermal media. The as-prepared Co₃O₄ nanorods are composed of many nanoparticles of 30–50 nm in diameter, forming a finger-like morphology. The Co₃O₄ electrode shows a specific capacitance of 265 F g⁻¹ at 2 mV s⁻¹ in a supercapacitor and delivers an initial specific discharge capacity as high as 1171 mAh g⁻¹ at a current density of 50 mA g⁻¹ in a lithium ion battery. Excellent cycling stability and electrochemical reversibility of the Co₃O₄ electrode were also obtained.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.