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首页> 外文期刊>Crystal growth & design >Hollow Nanospheres and Flowers of CuS from Self-Assembled Cu(II) Coordination Polymer and Hydrogen-Bonded Complexes of N-(2-Hydroxybenzyl)-L-serine
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Hollow Nanospheres and Flowers of CuS from Self-Assembled Cu(II) Coordination Polymer and Hydrogen-Bonded Complexes of N-(2-Hydroxybenzyl)-L-serine

机译:自组装的Cu(II)配位聚合物和N-(2-羟基苄基)-L-丝氨酸的氢键配合物形成的CuS空心纳米球和花

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摘要

Utilization of a novel two-dimensional coordination polymer generated from a trinuclear building block [Cu-3(HSser)(3)(H2O)(2)]center dot 2H(2)O (1) as a precursor in the synthesis of copper sulfide serendipitously resulted in CuS nanospheres with hollow interiors. The formation of CuS nanocrystals with the three-dimensional hierarchical flower-like morphology from the hydrogen-bonded metal complex [Cu(H(2)Sser)(2)]center dot H2O (2) as a precursor may be understood from the spatial arrangement of the metal atom and the organic ligand in the crystal lattice plays a major role in determining the shape of the nanomaterials. Detailed investigation on the effect of experimental conditions and the packing patterns of the complexes in the crystal lattice reveals the formation mechanism of the morphologically different CuS. The electrochemical behavior of these nanosized CuS meso-assemblies as a cathode material for lithium ion batteries reveals that the reaction proceeds through an insertion and deinsertion mechanism and the CuS with a hollow interior is more efficient and has good cyclability compared to that with a flower-like morphology.
机译:利用三核结构单元[Cu-3(HSser)(3)(H2O)(2)]中心点2H(2)O(1)生成的新型二维配位聚合物作为铜的合成前体硫化物偶然产生了具有空心内部的CuS纳米球。从氢键金属络合物[Cu(H(2)Sser)(2)]中心点H2O(2)作为前体可以形成具有三维分层花状形态的CuS纳米晶体。金属原子和有机配体在晶格中的排列在确定纳米材料的形状中起主要作用。详细研究实验条件和配合物在晶格中的堆积模式的影响,揭示了形态不同的CuS的形成机理。这些纳米级CuS介观组装体作为锂离子电池正极材料的电化学行为表明,反应是通过插入和去插入机制进行的,与花形内腔相比,具有中空内部的CuS更有效且具有良好的可循环性。像形态

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