Hollow nanostructures have attracted considerable attention owing to their large surface area, tunable cavity, and low density. In this study, a unique flower-like C@SnO _X @C hollow nanostructure (denoted as C@SnO _X @C-1) was synthesized through a novel one-pot approach. The C@SnO _X @C-1 had a hollow carbon core and interlaced petals on the shell. Each petal was a SnO₂ nanosheet coated with an ultrathin carbon layer ~2 nm thick. The generation of the hollow carbon core, the growth of the SnO₂ nanosheets, and the coating of the carbon layers were simultaneously completed via a hydrothermal process using resorcinol-formaldehyde resin-coated SiO₂ nanospheres, tin chloride, urea, and glucose as precursors. The resultant architecture with a large surface area exhibited excellent lithium-storage performance, delivering a high reversible capacity of 756.9 mA·h·g^–1 at a current density of 100 mA·g^–1 after 100 cycles.

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中空纳米结构由于其较大的表面积，可调的空腔和低密度而备受关注。在这项研究中，通过新颖的一锅法合成了独特的花状C @ SnO _X @C空心纳米结构（称为C @ SnO _X @ C-1）。C @ SnO _X @ C-1具有空心碳核和壳上交错的花瓣。每个瓣是涂覆有〜2nm厚的超薄碳层的SnO ₂纳米片。中空碳核的生成，SnO ₂纳米片的生长以及碳层的涂覆是通过使用间苯二酚-甲醛树脂涂覆的SiO ₂的水热工艺同时完成的。 纳米球，氯化锡，尿素和葡萄糖作为前体。所得到的具有大表面积的体系结构具有出色的锂存储性能，在100个循环后，在100 mA·g ^–1的电流密度下可提供756.9 mA·h·g ^–1的高可逆容量。

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