Ni_2P微球的合成、表征及其电化学性能  

Synthesis and characterization of Ni_2P microspheres and its electrochemical performance

作　　者：仝建波[1] 温俊涛[1] 闫路[1] 刘淑玲[1] 刘岩峰 

机构地区：[1]陕西科技大学化学与化工学院,陕西西安710021 [2]山东尚舜化工有限公司,山东菏泽274300

出　　处：《陕西科技大学学报（自然科学版）》2015年第1期85-89,共5页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(21301113);陕西科技大学研究生创新基金项目

摘　　要：通过简单溶剂热,以乙二醇（EG）和苯（Benzene）为溶剂,在不添加任何表面活性剂的条件下,成功制备出了Ni2P微球.结果表明,产物为纯的六方相Ni2P,形貌为由大量20nm的粒子组成的球形,微球直径介于1~3μm.通过考察反应温度、溶剂体积比及反应时间等对产物的影响,得到Ni2P微球的最佳制备条件为：反应温度160℃,溶剂比例V（EG）∶V（Benzene）=1∶1,反应时间12h.并以所制备Ni2P微球作为锂电池负极材料,研究了其电化学性能,结果表明样品的初始放电容量达1 915mAh/g.Uniform Ni2 P microspheres were successfully synthesized via a facile solvothermal method in the absent of any surfacant,using ethylene glycol（EG）and benzene as solvent.The results show that the products are pure Ni2 P with a hexagonal phase and the morphology is spheres which are composed with large number of small particles with a size of 20 nm.The diameter of the spheres is in the range of 1μm to 3μm.The effects of solvent ratio,reaction temperature,and reaction time on the formation of Ni2 P microspheres were also investigated.It was found that the optimum preparation conditions are that the reaction temperature is 160℃,the solvent ratio is V（EG）∶V（Benzene）=1∶1and reaction time is 12 h.As anode materials for lithium ion batteries,the electrochemical property of the Ni2 P microspheres was also examined.The results indicated that the initial discharge capacity of the Ni2 P microspheres reaches to 1 915mAh/g.

关 键 词：Ni2P微球 溶剂热 电化学性能 

分 类 号：O612.8[理学—无机化学] TQ110.3[理学—化学]