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Hollow structural materials exhibit strong advantages for application in electrode materials. Herein, we report an in situ synthesis of hollow tubular-fiber LiNi0.5Co0.2Mn0.3O2 (HFNCM523) prepared via electrospinning combined with calcination. The features of this material were provided with fiber-interconnected 3D network structure, hollow tubular structure, and multi-scale particle gaps, which are...
An effective sulfur host material of N-doped mesoporous-carbon polyhedron (NMCP) was derived from zeolitic imidazolate framework-8. We prepared an NMCP/S composite by sublimating sulfur into NMCP. As a Li–S battery cathode, the NMCP/S composite delivers a high initial capacity of 1308 mAh·g−1 at 50 mA·g−1, a stable reversible capacity of 496.3 mAh·g−1 after 150 cycles at 400 mA·g−1, and an excellent...
In this work, Ni-Co chalcogenides with controllable amorphous structure were successfully grown on carbon cloth via a facile surfactant-assisted hydrothermal route. The interacted reaction between NiCo2(OH)6 precursor and thioacetamide plays a critical role in altering the morphology and crystal structure of Ni-Co chalcogenides. The varying active sites in NiCo2(OH)6 and the H2S gas decomposed from...
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