摘要
采用直流电弧等离子体法制备出Mg-Ni和Mg-Ni/La2O3两种镁基合金纳米粒子,研究了稀土氧化物La2O3对Mg-Ni纳米粒子进行表面改性后对其相结构及电化学性能的影响。结果表明:稀土氧化物La2O3对Mg-Ni纳米粒子进行表面掺杂改性后,有效地抑制了MgO和Mg(OH)2相生成。掺杂La2O3以后,Mg-Ni纳米粒子的电化学性能得到了明显的改善,提高了它在强碱性介质中的耐蚀性能和放电性能。
Two kinds of Mg-based alloy nanoparticles Mg-Ni and Mg-Ni/La2O3 were prepared by the DC arc plasma discharge method,and the phase structure and the electrochemistry performances of Mg-Ni nanoparticles with rare earth oxide La2O3 superficial modification were studied.The results indicate that rare earth oxide La2O3 modification for Mg-Ni nanoparticles can effectively suppress MgO and Mg（OH）2 phases.After doping La2O3,the Mg-Ni nanoparticles＇ electrochemical performances are obviously improved,and the anticorrosion performance and the electric discharge performance in the thick alkaline solution are enhanced.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2012年第11期1950-1954,共5页
Rare Metal Materials and Engineering
基金
博士点基金(20100041110032)
关键词
镁基合金纳米粒子
直流电弧法
表面改性
电化学性能
Mg-based alloy nanoparticles
DC arc discharge
superficial modification
electrochemical property
