Synthesis of Gadolinium‐Doped Ceria Powders by Electrolysis of Aqueous Solutions
Synthesis of Gadolinium‐Doped Ceria Powders by Electrolysis of Aqueous Solutions
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水溶液电解合成掺钆二氧化铈粉末
DOI：
10.1111/j.1551-2916.2008.02645.x
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发表时间：
2009
影响因子：
3.9
通讯作者：
Masaru Murao
中科院分区：
文献类型：
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作者：
Y. Hirata;N. Matsunaga;Masaru Murao
通过在两个铂丝电极（阳极和阴极）之间在4-10 V的施加电压下使用直流和交流电流电解含有Ce 3+和Gd 3+离子的水溶液来制备钆掺杂的二氧化铈粉末。通过X射线衍射和化学分析确定所产生的粉末为钆掺杂的氧化铈固溶体。在直流电场下电解15 min可制得粒径为60-70 μm的多孔大颗粒。另一方面，在频率低于20 Hz的交流电下电解6-12 h可制得粒径为40-250 nm的纳米颗粒。在100 Hz至1 MHz的高频范围内没有形成颗粒。粒子的成核和生长速率取决于所施加的交流电的频率和电解时间。用交流电形成的颗粒的Gd 2 O3/CeO 2比低于起始溶液的Gd 2 O3/CeO 2比。
A gadolinium-doped ceria powder was produced by electrolysis of an aqueous solution containing Ce3+ and Gd3+ ions using direct and alternating current at 4–10 V of applied voltage between two platinum wire electrodes (anode and cathode). The powders produced were identified as a gadolinium-doped ceria solid solution by X-ray diffraction and chemical analysis. Large porous particles 60–70 μm in size were produced under a direct current field for 15 min. On the other hand, nanoparticles 40–250 nm in size were produced for 6–12 h of electrolysis using alternating current below 20 Hz of frequency. No particles were formed in the high frequency range from 100 Hz to 1 MHz. The nucleation and growth rates of the particles depended on the frequency of the alternating current and electrolysis time applied. The Gd2O3/CeO2 ratio of the particles formed with alternating current was lower than that of the starting solution.
Kuwabara，通过光束光刻和电泳沉积制备钛酸钡微图案
DOI：
--
发表时间：
2006
期刊：
Key Eng. Mater. 301
影响因子：
--
作者：
Y. J. Wu;J. Li and M. Kuwabara
通讯作者：
J. Li and M. Kuwabara