Synthesis and characterization of the structural and electrochemical properties of Nd-Al codoped amorphous nickel hydroxide
来源期刊：JOURNAL OF RARE EARTHS2010年第2期
论文作者：刘长久 陈世娟 李延伟
文章页码：265 - 269
摘 要：Nd-Al codoped amorphous nickel hydroxide powders were synthesized by microemulsion precipitation method combined with rapid freezing technique.The microstructure of the prepared samples was analyzed with X-ray diffractometer（XRD）,scanning electron microscopy（SEM）,and Raman spectroscopy.The electrochemical performances of the prepared samples were characterized with charge/discharge test,cyclic voltammetry,and electrochemical impedance spectra.The results showed that the codoping of Nd-Al resulted in more structural defects within the nickel hydroxide.Compared with the Al singly doped amorphous nickel hydroxide,the Nd-Al codoped amorphous nickel hydroxide showed improved electrochemical properties,such as better electrochemical reversibility,lower charge transfer resistance,and higher discharge capacity.
刘长久1,2，陈世娟1，李延伟1,2
1. Key Laboratory of New Processing Technology for Nonferrous Metals and Materials of Ministry of Education,Guilin University of Technology2. College of Chemistry and bioengineering,Guilin University of Technology
摘 要：Nd-Al codoped amorphous nickel hydroxide powders were synthesized by microemulsion precipitation method combined with rapid freezing technique.The microstructure of the prepared samples was analyzed with X-ray diffractometer（XRD）,scanning electron microscopy（SEM）,and Raman spectroscopy.The electrochemical performances of the prepared samples were characterized with charge/discharge test,cyclic voltammetry,and electrochemical impedance spectra.The results showed that the codoping of Nd-Al resulted in more structural defects within the nickel hydroxide.Compared with the Al singly doped amorphous nickel hydroxide,the Nd-Al codoped amorphous nickel hydroxide showed improved electrochemical properties,such as better electrochemical reversibility,lower charge transfer resistance,and higher discharge capacity.
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