Self-Reconstructed Formation of a One-Dimensional Hierarchical Porous Nanostructure Assembled by Ultrathin TiO2 Nanobelts for Fast and Stable Lithium Storage

ACS Applied Materials & Interfaces
Yuan LiuCewen Nan

Abstract

Owing to their unique structural advantages, TiO2 hierarchical nanostructures assembled by low-dimensional (LD) building blocks have been extensively used in the energy-storage/-conversion field. However, it is still a big challenge to produce such advanced structures by current synthetic techniques because of the harsh conditions needed to generate primary LD subunits. Herein, a novel one-dimensional (1D) TiO2 hierarchical porous fibrous nanostructure constructed by TiO2 nanobelts is synthesized by combining a room-temperature aqueous solution growth mechanism with the electrospinning technology. The nanobelt-constructed 1D hierarchical nanoarchitecture is evolves directly from the amorphous TiO2/SiO2 composite fibers in alkaline solutions at ambient conditions without any catalyst and other reactant. Benefiting from the unique structural features such as 1D nanoscale building blocks, large surface area, and numerous interconnected pores, as well as mixed phase anatase-TiO2(B), the optimum 1D TiO2 hierarchical porous nanostructure shows a remarkable high-rate performance when tested as an anode material for lithium-ion batteries (107 mA h g-1 at ∼10 A g-1) and can be used in a hybrid lithium-ion supercapacitor with very stable...Continue Reading

References

Jan 13, 2011·Chemistry : a European Journal·Claas WesselSébastien Sallard
Feb 23, 2011·Advanced Materials·Jiehua LiuXue-Wei Liu
Nov 2, 2011·Journal of the American Chemical Society·Ziqi SunShi Xue Dou
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Jun 13, 2015·Nature Communications·Chaojiang NiuLiqiang Mai
Oct 24, 2015·ACS Applied Materials & Interfaces·Subrahmanyam GoripartiRemo Proietti Zaccaria
Jul 16, 2016·ACS Applied Materials & Interfaces·Shaofu WangXing-Zhong Zhao
Jun 14, 2017·ACS Applied Materials & Interfaces·Michael G FischerUllrich Steiner

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