Effect of synthesizing temperature on the electrochemical properties of nitrogen-doped Co-B alloys

摘要：

　　Using urea as nitrogen source,nitrogen-doped Co-B alloys were prepared by chemical reduction method at different reaction temperatures(25,50,and 75 °C).The structure and surface morphology were characterized by XRD and SEM.Then they were used as negative electrode materials for alkaline secondary batteries(ASBs).The electrochemical properties were measured by galvanostatic charge-discharge,electrochemical impedance spectroscopy(EIS),and anodic polarization(AP).The experimental results show that the lower the synthesizing temperature is,the better the electrochemical performance of nitrogen-doped Co-B alloy is.For example,nitrogen-doped CoB alloy prepared at 25 °C has an initial discharge capacity of 825.8 mAh/g.After 100 charge/discharge cycles,the discharge specific capacity has remained to be 369.5 mAh/g with capacity retention of 44.7%.

作者: Y L Liao W Zhao S J Qiu H L Chu Y J Zou C L Xiang H Z Zhang F Xu L X Sun

作者单位: Guangxi Key Laboratory of Information Materials,Guangxi Collaborative Innovation Centre of Structure and Property for New Energy and Materials,and School of Materials Science and Engineering,Guilin University of Electronic Technology,Guilin 541004,PR China

会议类型: 国际会议

会议名称: 第二届新型材料与化学工业国际学术会议

会议地点: 三亚

会议语种:英文

页码: 1-7

在线出版日期: 2017-11-18（万方平台首次上网日期，不代表论文的发表时间）