Kinetically controlled low-temperature solution-processed mesoporous rutile TiO2 for high performance lithium-ion batteries

Rohan B. Ambade, Ki Hwan Koh, Swapnil B. Ambade, Wonsik Eom, Sung Hyun Noh, Chong Min Koo, Seong Hun Kim, Tae Hee Han

Research output: Contribution to journalArticle

Abstract

Solution-processed nanostructured mesoporous rutile phase titanium dioxides (TiO2) are a fascinating class of materials for energy applications owing to their remarkable properties, including thermal stability. The unique lattice structure of rutile TiO2 (R-TiO2) leads to multifaceted physicochemical properties, which influence its performances. We here report the preparation of mesoporous R-TiO2 via a simple and scalable solution process at a low temperature (<50 °C). Kinetically controlled synthesis of mesoporous R-TiO2 with three-dimensional hierarchical sea-urchin-like morphology containing populous one-dimensional nanorods are prepared from the precipitates of our cocktail-like precursor solutions of TiCl4 and CH4N2S. The mesoporous R-TiO2 annealed at 300 °C possessing a large surface area manifests excellent energy storage behavior, with a high capacity of 457 mAhg−1 for the first discharge cycle, at a current density of 0.2 C in the potential range of 1–3 V, as well as a high reversible charge–discharge capacity, high rate performance, and excellent cycling stability for lithium-ion batteries. We anticipate our straightforward wet-chemical method to advance the development of mesoporous TiO2 as a promising candidate for high-performance energy storage and other energy applications.

Original languageEnglish
JournalJournal of Industrial and Engineering Chemistry
DOIs
Publication statusAccepted/In press - 2019 Jan 1
Externally publishedYes

Fingerprint

Energy storage
Nanorods
Titanium dioxide
Temperature
Precipitates
Thermodynamic stability
Current density
Lithium-ion batteries
titanium dioxide

Keywords

  • Anode materials
  • Lithium-ion batteries
  • Low-temperature synthesis
  • Mesoporous
  • Rutile TiO

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Kinetically controlled low-temperature solution-processed mesoporous rutile TiO2 for high performance lithium-ion batteries. / Ambade, Rohan B.; Koh, Ki Hwan; Ambade, Swapnil B.; Eom, Wonsik; Noh, Sung Hyun; Koo, Chong Min; Kim, Seong Hun; Han, Tae Hee.

In: Journal of Industrial and Engineering Chemistry, 01.01.2019.

Research output: Contribution to journalArticle

Ambade, Rohan B. ; Koh, Ki Hwan ; Ambade, Swapnil B. ; Eom, Wonsik ; Noh, Sung Hyun ; Koo, Chong Min ; Kim, Seong Hun ; Han, Tae Hee. / Kinetically controlled low-temperature solution-processed mesoporous rutile TiO2 for high performance lithium-ion batteries. In: Journal of Industrial and Engineering Chemistry. 2019.
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AU - Noh, Sung Hyun

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