| Investigations on structure and proton diffusion coefficient of rare earth ion （Y^3＋/Nd^3＋） and aluminum codoped α-Ni（OH）2 |
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| 引用本文： | 刘长久,宋莎,李延伟,刘爱芳.Investigations on structure and proton diffusion coefficient of rare earth ion （Y^3＋/Nd^3＋） and aluminum codoped α-Ni（OH）2[J].中国稀土学报(英文版),2008,26(4):594-597. |
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| 作者姓名： | 刘长久 宋莎 李延伟 刘爱芳 |
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| 作者单位： | Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, Guilin University of Technology, Guilin 541004, China |
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| 基金项目： | Project supported by the Guangxi Science Research and Technology Developing Foundation （0731001） |
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| 摘 要： | Rare earth ion （Nd^3＋/Y^3＋） and Al^3＋ codoped α-Ni（OH）2 powers were synthesized by chemical coprecipitation method. The structttre was analyzed with X-ray diffraction （XRD） and thermal gravity （TG）. Cyclic voltammetry （CV） tests were performed to evaluate the proton diffusion coefficients of the samples. The results indicated that codoping of Y-Al and Nd-Al resulted in more water molecules contained within the crystal lattice and accordingly increased the interlayer spacing. In particular, the Y-Al codoped α-Ni（OH）2 showed a turbostratic structure. The calculated diffusion coefficients of the Y-Al codoped α-Ni（OH）2 and Nd-Al codoped α-Ni（OH）2 were 3.5×10^-10cm^2/s and 2.8× 10^-10 cm^2/s, respectively.
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| 关 键 词： | 氢氧化镍 化学沉积物 质子给体 稀土 |
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