Investigations on structure and proton diffusion coefficient of rare earth ion (Y3+/Nd3+) and aluminum codoped α-Ni（OH）2
来源期刊：Journal of Rare Earths2008年第4期
论文作者：刘长久 宋莎 李延伟 刘爱芳
文章页码：594 - 597
摘 要：Rare earth ion （Nd3+/Y3+） and Al3+ codoped α-Ni（OH）2 powers were synthesized by chemical coprecipitation method. The structure 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 3.5×10–10 cm2/s and 2.8×10–10 cm2/s, respectively.
刘长久，宋莎，李延伟，刘爱芳
摘 要：Rare earth ion （Nd3+/Y3+） and Al3+ codoped α-Ni（OH）2 powers were synthesized by chemical coprecipitation method. The structure 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 3.5×10–10 cm2/s and 2.8×10–10 cm2/s, respectively.
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