Synthesis, crystal structure, and structural conversion of Ni molybdate hydrate NiMoO4 • nH2O
Synthesis, crystal structure, and structural conversion of Ni molybdate hydrate NiMoO4 • nH2O
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DOI：
10.1016/j.jssc.2010.04.009
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发表时间：
2010-06-01
影响因子：
3.3
通讯作者：
Whittingham, M. Stanley
中科院分区：
文献类型：
--
作者：
Eda, Kazuo;Kato, Yasuyuki;Whittingham, M. Stanley
研究了NiMoO4 nH(2)O的合成及晶体结构。水合物结晶于三斜晶系，空间群P - 1，Z=4，晶胞参数a=6 7791(2)埃，b=6 8900(2)埃，c=9.2486(2)埃，α=76 681(2)度，β=83 960(2)度，γ=74 218(2)度其理想的化学成分是NiMoO4·3/4H(2)O而不是NiMoO4·1H(2)O。在水热条件下，水合物在 483 K 以上直接转化为 α-NiMoO4，得到比母水合物微晶更细的纳米棒。另一方面，它在室温下在钼酸盐溶液中通过固溶过程转化为 Anderson 型多钼酸盐 (C) 2010 Elsevier Inc 保留所有权利
The synthesis and crystal structure of NiMoO4 nH(2)O were investigated The hydrate crystallized in the triclinic system with space group P - 1, Z=4 with unit cell parameters of a=6 7791(2) angstrom, b=6 8900(2) angstrom, c=9.2486(2) angstrom, alpha = 76 681(2)degrees, beta=83 960(2)degrees, gamma=74 218(2)degrees Its Ideal chemical composition was NiMoO4 3/4H(2)O rather than NiMoO4 1H(2)O. Under hydrothermal conditions the hydrate turned directly into alpha-NiMoO4 above 483 K, giving nanorods thinner than the crystallites of the mother hydrate On the other hand, it turned into Anderson type of polyoxomolybdate via a solid-solution process in a molybdate solution at room temperature (C) 2010 Elsevier Inc All rights reserved