Synthesis of manganite perovskites by reverse homogeneous precipitation method in the presence of alkylammonium cations
Synthesis of manganite perovskites by reverse homogeneous precipitation method in the presence of alkylammonium cations
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DOI：
10.1246/cl.2000.1202
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发表时间：
2000-10-05
影响因子：
1.6
通讯作者：
Yamazoe, N
中科院分区：
文献类型：
--
作者：
Teraoka, Y;Nanri, S;Yamazoe, N
氢氧化物前驱体在650 ℃及以上空气煅烧后可合成具有高比表面积的单相LaMn 3 + δ钙钛矿。通过将La和Mn的硝酸盐的混合水溶液滴加到高碱性的NH3水溶液中，在有和没有N（CH3）（4）Br存在下，容易地获得前体。N（CH3）（4）Br的加入有效地增加了产物的比表面积以及稳定了氢氧化物前体的胶体溶液。
A single-phase LaMn3+delta perovskite with high surface area could be synthesized after air-calcining the hydroxide precursor at 650 degreesC and above. The precursor was easily obtained by dropping a mixed aqueous solution of La and Mn nitrates into highly basic aq NH3 with and without the presence of N(CH3)(4)Br. The addition of N(CH3)(4)Br was effective in increasing the specific surface area of the products as well as in stabilizing the colloidal solution of the hydroxide precursor.