Engineering the surface of rutile TiO2 nanoparticles with quantum pits towards excellent lithium storage. Issue 70 (12th July 2016)

• Record Type: Journal Article
• Authors: Huang, Jinglu; Fang, Fang; Huang, Guoyong; Sun, Hongyu; Zhu, Jing; Yu, Rong
• Is Part Of: RSC advances. Volume 6:Issue 70(2016)
• Page Start: 66197
• Page End: 66203
• Publication Date: 2016-07-12
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra08629b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Unique rutile TiO2 nanoparticles with quantum pits have been successfully synthesized by a facile solution and subsequent thermal annealing method. The resultant rutile TiO2 nanoparticles exhibit excellent lithium storage properties. 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.