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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Synthesis and crystal structures of iron hydrogen phosphates
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Synthesis and crystal structures of iron hydrogen phosphates

机译:磷酸氢铁的合成与晶体结构

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Three new iron hydrogen phosphate compositions have been synthesised under hydrothermal conditions; Fe(II)(2)O(HPO4) (1), (NH4)(3)Fe(III)(3)(HPO4)(6) (2) and Fe-1.34(III)(PO4)OH0.96 (3). 1 and 2 have framework structures constructed from FeO6 octahedra and HPO4/PO4 tetrahedra containing cavities; in the case of 2, these are occupied by ammonium cations while in 1 they are cross linked by hydrogen bonding involving the HPO4 groups. Crystals of 3 grow as 30 mm octahedral "jackstones" and this synthetic material adopts the structure from the Lipscombite solid solution. Thermal decomposition of these materials yields simple iron phosphates and the potential of these compounds and their derivatives, formed for example through Li+-ion exchange of NH4+, for battery applications is discussed.
机译:在水热条件下已经合成了三种新的磷酸氢铁组合物。 Fe(II)(2)O(HPO4)(1),(NH4)(3)Fe(III)(3)(HPO4)(6)(2)和Fe-1.34(III)(PO4)OH0.96 (3)。图1和图2具有由FeO6八面体和HPO4 / PO4四面体腔构成的骨架结构。在2的情况下,它们被铵阳离子占据,而在1的情况下,它们通过涉及HPO4基团的氢键交联。 3的晶体生长为30毫米的八面体“千斤顶”,这种合成材料采用Lipscombite固溶体的结构。这些材料的热分解产生简单的磷酸铁,并讨论了这些化合物及其衍生物(例如通过NH4 +的Li +离子交换形成)在电池应用中的潜力。

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