节点文献

MnO2对NiFe2O4的电导率及合成反应速率的影响

Effects of MnO2 on the electrical conductivity and on the synthetic rate of NiFe2O4

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 张丽君王淑兰姚广春

【Author】 Zhang Lijun;Wang Shulan;Yao Guangchun;School of Science,Northeastern University;School of Materials and Metallurgy,Northeastern University;

【机构】 东北大学理学院东北大学材料与冶金学院

【摘要】 以NiO和Fe2O3为原料,添加质量分数为1%的MnO2,在1 173和1 273 K温度下通过固相法合成了NiFe2O4,获得了合成NiFe2O4过程中试样电阻随时间的变化规律,建立了合成NiFe2O4反应的动力学,并用XRD表征了反应产物.添加1%的MnO2提高了合成NiFe2O4反应的速率.通过一级反应动力学方程,计算了合成NiFe2O4反应的速率系数和活化能.

【Abstract】 NiFe2O4 was prepared by solid synthetic method from NiO and Fe2O3 with 1 % wt MnO2 as additive at1173 and 1273 K.Resistance variation of the samples with time during synthetic process of NiFe2O4 was obtained and was used to study the synthetic kinetics of NiFe2O4.Product NiFe2O4 was characterized by XRD.The synthetic rate of NiFe2O4 was increased by the addition of 1% wt MnO2.The synthetic rate and the activation energy of synthetic process of NiFe2O4 were calculated based on the first order kinetic equation.

【基金】 国家自然科学基金项目资助(50834001,51274058)
  • 【文献出处】 材料与冶金学报 ,Journal of Materials and Metallurgy , 编辑部邮箱 ,2013年04期
  • 【分类号】TG148
  • 【下载频次】66
节点文献中: 

本文链接的文献网络图示:

本文的引文网络