Ilmenite FeTiO3 nanoflowers and their pseudocapacitance

Tao Tao; Alexey M. Glushenkov; Hongwei Liu; Zongwen Liu; Xiujuan J. Dai; Hua Chen; Simon P. Ringer; Ying Chen

doi:10.1021/jp203345s

Ilmenite FeTiO₃ nanoflowers and their pseudocapacitance

Tao Tao, Alexey M. Glushenkov^*, Hongwei Liu, Zongwen Liu, Xiujuan J. Dai, Hua Chen, Simon P. Ringer, Ying Chen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

55 Citations (Scopus)

Abstract

Pronounced and stable pseudocapacitance has been found in flowerlike FeTiO₃ nanostructures that were synthesized from ball-milled ilmenite (natural mineral) under mild hydrothermal conditions. Each nanoflower is composed of many thin petals with a thickness of 5-20 nm and a width of 100-200 nm. The formation of these flowerlike nanostructures is attributed to a dissolution-precipitation mechanism involving an intermediate sodium-containing phase. Electrochemical properties of the obtained FeTiO₃ nanostructures are evaluated in aqueous electrolytes. The capacitance of 122 ± 14.5 F/g is measured in 1 M KOH aqueous electrolyte at the current rate of 500 mA/g, and 50 ± 6 F/g is retained at 5 A/g. The material has good long-term cycling stability. According to our data, FeTiO₃ nanostructures show functionality as an electrode material for supercapacitors.

Original language	English
Pages (from-to)	17297-17302
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	115
Issue number	35
DOIs	https://doi.org/10.1021/jp203345s
Publication status	Published - 8 Sept 2011

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title = "Ilmenite FeTiO3 nanoflowers and their pseudocapacitance",

abstract = "Pronounced and stable pseudocapacitance has been found in flowerlike FeTiO3 nanostructures that were synthesized from ball-milled ilmenite (natural mineral) under mild hydrothermal conditions. Each nanoflower is composed of many thin petals with a thickness of 5-20 nm and a width of 100-200 nm. The formation of these flowerlike nanostructures is attributed to a dissolution-precipitation mechanism involving an intermediate sodium-containing phase. Electrochemical properties of the obtained FeTiO3 nanostructures are evaluated in aqueous electrolytes. The capacitance of 122 ± 14.5 F/g is measured in 1 M KOH aqueous electrolyte at the current rate of 500 mA/g, and 50 ± 6 F/g is retained at 5 A/g. The material has good long-term cycling stability. According to our data, FeTiO3 nanostructures show functionality as an electrode material for supercapacitors.",

author = "Tao Tao and Glushenkov, {Alexey M.} and Hongwei Liu and Zongwen Liu and Dai, {Xiujuan J.} and Hua Chen and Ringer, {Simon P.} and Ying Chen",

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doi = "10.1021/jp203345s",

language = "English",

volume = "115",

pages = "17297--17302",

journal = "Journal of Physical Chemistry C",

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TY - JOUR

T1 - Ilmenite FeTiO3 nanoflowers and their pseudocapacitance

AU - Tao, Tao

AU - Glushenkov, Alexey M.

AU - Liu, Hongwei

AU - Liu, Zongwen

AU - Dai, Xiujuan J.

AU - Chen, Hua

AU - Ringer, Simon P.

AU - Chen, Ying

PY - 2011/9/8

Y1 - 2011/9/8

N2 - Pronounced and stable pseudocapacitance has been found in flowerlike FeTiO3 nanostructures that were synthesized from ball-milled ilmenite (natural mineral) under mild hydrothermal conditions. Each nanoflower is composed of many thin petals with a thickness of 5-20 nm and a width of 100-200 nm. The formation of these flowerlike nanostructures is attributed to a dissolution-precipitation mechanism involving an intermediate sodium-containing phase. Electrochemical properties of the obtained FeTiO3 nanostructures are evaluated in aqueous electrolytes. The capacitance of 122 ± 14.5 F/g is measured in 1 M KOH aqueous electrolyte at the current rate of 500 mA/g, and 50 ± 6 F/g is retained at 5 A/g. The material has good long-term cycling stability. According to our data, FeTiO3 nanostructures show functionality as an electrode material for supercapacitors.

AB - Pronounced and stable pseudocapacitance has been found in flowerlike FeTiO3 nanostructures that were synthesized from ball-milled ilmenite (natural mineral) under mild hydrothermal conditions. Each nanoflower is composed of many thin petals with a thickness of 5-20 nm and a width of 100-200 nm. The formation of these flowerlike nanostructures is attributed to a dissolution-precipitation mechanism involving an intermediate sodium-containing phase. Electrochemical properties of the obtained FeTiO3 nanostructures are evaluated in aqueous electrolytes. The capacitance of 122 ± 14.5 F/g is measured in 1 M KOH aqueous electrolyte at the current rate of 500 mA/g, and 50 ± 6 F/g is retained at 5 A/g. The material has good long-term cycling stability. According to our data, FeTiO3 nanostructures show functionality as an electrode material for supercapacitors.

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M3 - Article

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JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 35

ER -

Ilmenite FeTiO₃ nanoflowers and their pseudocapacitance

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