科研之友
微信
新浪微博
Facebook
分享链接
摘要
Cobalt phosphide (Co2P) nanoshuttles were synthesized via simple microwave-assisted hydrothermal treatment of cobalt chloride and yellow phosphorus at 220 degrees C for 30 min. Their crystalline structure and morphology were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The as-prepared nanoshuttles were similar to 20 mu m long, and their diameter decreased from about 300 nm in the central part to <30 nm at their terminal tips. A combined oriented attachment and Ostwald ripening mechanism is proposed for the Co2P nanoshuttle formation, based on the experimental results and density functional theory calculations. The as-prepared Co2P nanoshuttles exhibited excellent electrochemical properties, e.g., a specific capacitance of 246 F g(-1) at a discharge current density of 1 A g(-1) along with excellent cycling stability, suggesting their great application potential in high-performance energy storage/conversion devices.
- 出版日期2018-5-7
- 单位武汉科技大学
