Engineering the surface of rutile TiO2 nanoparticles with quantum pits towards excellent lithium storage

Jinglu Huang, Fang Fang, Guoyong Huang, Hongyu Sun, Jing Zhu, Rong Yu

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Engineering the surface structure of nanomaterials is of great importance for applications in energy conversion and storage. Herein, unique rutile TiO2 nanoparticles have been successfully synthesized by a facile solution and subsequent thermal annealing method. Each particle surface has been etched to form pits with an average size of 2-5 nm, producing abundant steps and vacancies. When evaluated as anode materials for lithium-ion batteries, the yielded rutile TiO2 nanoparticle electrode exhibits a maximum specific capacity of ∼145 mA h g-1 at a current density of 0.5C (1C = 335 A g-1) with outstanding charge/discharge rate capability (∼102 mA h g-1 at 5C) and good cycling performance.
    Original languageEnglish
    JournalRSC Advances
    Volume6
    Issue number70
    Pages (from-to)66197-66203
    Number of pages7
    ISSN2046-2069
    DOIs
    Publication statusPublished - 2016

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