Lithium Ion Storage Characteristics of Mechanically Fractured Titanate Nanotubes

The effect of mechanical milling on the formation of short titanate nanotube and structural change induced is investigated. Mechanical milling produces the short nanotubes with the length of 30–160 nm. The lithium ion intercalation characteristics of the obtained short titanate nanotube were studied...

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Veröffentlicht in:Journal of nanomaterials 2012-01, Vol.2012 (2012), p.1-8
Hauptverfasser: Shin, Dongwook, Yoon, Yongsub, Eom, Minyong, Kim, Jeongeun
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creator Shin, Dongwook
Yoon, Yongsub
Eom, Minyong
Kim, Jeongeun
description The effect of mechanical milling on the formation of short titanate nanotube and structural change induced is investigated. Mechanical milling produces the short nanotubes with the length of 30–160 nm. The lithium ion intercalation characteristics of the obtained short titanate nanotube were studied to verify the effect of the newly formed cross-sections of nanotubes. It was found that the protonated titanate nanotubes maintained long shapes until 30 min of mechanical milling and were transformed into agglomerated nanosheets and finally anatase granules depending on the treatment duration. Through galvanostatic investigation, the nanotubes with milling of 15 min exhibited the highest discharge capacity of 336 mAh·g−1 in first cycle, 12.4% larger than pristine.
doi_str_mv 10.1155/2012/394089
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Mechanical milling produces the short nanotubes with the length of 30–160 nm. The lithium ion intercalation characteristics of the obtained short titanate nanotube were studied to verify the effect of the newly formed cross-sections of nanotubes. It was found that the protonated titanate nanotubes maintained long shapes until 30 min of mechanical milling and were transformed into agglomerated nanosheets and finally anatase granules depending on the treatment duration. 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subjects Anatase
Aqueous solutions
Batteries
Fuel cells
Granular materials
Lithium
Mechanical milling
Nanomaterials
Nanostructure
Nanotubes
Phase transitions
Studies
Titanates
Titanium oxide powders
title Lithium Ion Storage Characteristics of Mechanically Fractured Titanate Nanotubes
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