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H~2~Ti~3~O~7~ Nanorods Synthesized H Cation-exchange in Na~2~Ti~3~O~7~ for Stable Sodium Storage by Cheng Li; Ying Jiang; Zehua Li; Yixin Zhang; Man Xie is a Physics and Astronomy article available to read on EtoBox.

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## Abstract To overcome poor interfacial stability and slow ion transport rate of Na~2~Ti~3~O~7~, H~2~Ti~3~O~7~ nanorods are synthesized by acidification of Na~2~Ti~3~O~7~ with low concentration of strong acid. The dominated pseudo-capacitive behavior significantly improved rate capability with fast electron and ion storage kinetics. When used as anode for sodium-ion batteries, H~2~Ti~3~O~7~ delivers a stable specific capacity of 103.5 mAh g^-1^ after 500 cycles with a capacity retention rate of 49.3%, and high rate performance (70.5 mAh g^-1^ at 2 A g^-1^).

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Author

Cheng Li; Ying Jiang; Zehua Li; Yixin Zhang; Man Xie

Publisher

IOP Publishing

Published

2020

Language

EN

Field

Physics and Astronomy (Physical Sciences)