中文摘要：

有 multilevel 内部的空结构具有为象催化作用，察觉到的化学药品，药交货，和精力存储那样的潜在的应用的大兴趣的金属氧化物。然而， multilevel nanotubes 的控制合成仍然是大挑战。这里，我们通过控制的热处理跟随的 electrospinning 与悦耳的内部结构向复杂金属氧化物 multilevel nanotubes 的合成开发一条灵巧的调制接口的途径。这万用的策略能有效地被使用制作 wire-in-tube 和各种各样的金属氧化物的 tube-in-tube nanotubes。这些 multilevel nanotubes 拥有一个大特定的表面区域，快集体运输，好紧张住所，和高收拾行李密度，它为锂离子电池(解放) 和氧减小反应(ORR ) 是有益的。明确地，可缩小的 CoMn ₂ O ₄ tube-in-tube nanotubes 作为锂离子电池阳极交付 ~ 的一个高分泌物能力在二组商业烈酒之间的 565 mAhon。电子鼻子基于快 GC 提供有效、快速的芳香侧面比较的可能性(分析的全部的时间是 93 ? s ) 选择白酒。另外，鉴定并且试验这些饮料用的不稳定的部分的选择混合物的数量的 semiqualitative 比较在不到 60 的病人 HS-SPME/GCantly 更长 ? 年在 60 年与那些相比变老(33.8？

英文摘要：

Metal oxide hollow structures with multilevel interiors are of great interest for potential applications such as catalysis, chemical sensing, drug delivery, and energy storage. However, the controlled synthesis of multilevel nanotubes remains a great challenge. Here we develop a facile interface-modulated approach toward the synthesis of complex metal oxide multilevel nanotubes with tunable interior structures through electrospinning followed by controlled heat treatment. This versatile strategy can be effectively applied to fabricate wire-in-tube and tube- in-tube nanotubes of various metal oxides. These multilevel nanotubes possess a large specific surface area, fast mass transport, good strain accommodation, and high packing density, which are advantageous for lithium-ion batteries （LIBs） and the oxygen reduction reaction （ORR）. Specifically, shrinkable CoMn204 tube-in-tube nanotubes as a lithium-ion battery anode deliver a high discharge capacity of -565 mAh-g-1 at a high rate of 2 A.g-~, maintaining 89% of the latter after 500 cycles. Further, as an oxygen reduction reaction catalyst, these nanotubes also exhibit excellent stability with about 92% current retention after 30,000 s, which is higher than that of commercial Pt/C （81%）. Therefore, this feasible method may push the rapid development of one-dimensional （1D） nanomaterials. These multifunctional nanotubes have great potential in many frontier fields.