Hollow C@TiO2 array nanospheres as efficient sulfur hosts for lithium–sulfur batteries,Sustainable Energy & Fuels

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Hollow C@TiO2 array nanospheres as efficient sulfur hosts for lithium–sulfur batteries
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2020-09-17 , DOI: 10.1039/d0se01061h
Sheng-You Qiu _{1,

2,

3,

4} , Chuang Wang _{1,

2,

3,

4} , Li-Su Zhang _{4,

5,

6,

7,

8} , Liang-Liang Gu _{1,

2,

3,

4} , Zai-Xing Jiang _{1,

2,

3,

4} , Jian Gao _{4,

5,

6,

7,

8} , Joshua Sokolowski _{9,

10,

11,

12,

13} , Gang Wu _{9,

10,

11,

12,

13} , Xiao-Dong Zhu _{1,

2,

3,

4,

5}

Affiliation

Herein, hollow core–shell C@TiO₂ array nanospheres were synthesized as advanced sulfur hosts and realized much-improved electrochemical performance. Specifically, hollow buffer structures can encapsulate sulfur, while the polar TiO₂ nanoarray is able to provide intense chemisorption towards polysulfides, synergistically easing the shuttle effect. Consequently, the C@TiO₂/S cathode delivered a low fading rate of 0.055% per cycle for 500 cycles.

中文翻译：

中空的C @ TiO2阵列纳米球作为锂硫电池的有效硫主体

在这里，空心壳C @ TiO ₂阵列纳米球被合成为先进的硫主体，并实现了大大提高的电化学性能。具体而言，中空的缓冲结构可以封装硫，而极性TiO ₂纳米阵列则能够提供对多硫化物的强烈化学吸附，从而协同缓解穿梭效应。因此，C @ TiO ₂ / S阴极在500个循环中每个循环的衰减率仅为0.055％。

更新日期：2020-10-06

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