Core–shell TiO₂ microsphere with enhanced photocatalytic activity and improved lithium storage

Journal Article · Wed May 01 04:00:00 EDT 2013 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/J.JSSC.2013.02.031· OSTI ID:22306278

Guo, Hong ^[1]; Tian, Dongxue; Liu, Lixiang; Wang, Yapeng; Guo, Yuan; Yang, Xiangjun ^[1]

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1. School of Chemistry Science and Engineering, Yunnan University, No. 2, Green Lake North Road, Kunming 650091, Yunnan (China)

Inorganic hollow core–shell spheres have attracted considerable interest due to their singular properties and wide range of potential applications. Herein a novel facile generic strategy of combining template assisted and solvothermal alcoholysis is employed to prepare core–void–shell anatase TiO₂ nanoparticle aggregates with an excellent photocatalytic activity, and enhanced lithium storage in large quantities. Amorphous carbon can be loaded on the TiO₂ nanoparticles uniformly under a suitably formulated ethanol/water system in the solvothermal alcoholysis process, and the subsequent calcination results of the formation of core–shell–shell anatase TiO₂ nanoparticle aggregates. The intrinsic core–void–shell nature as well as high porosity of the unique nanostructures contributes greatly to the superior photocatalytic activity and improved performance as anode materials for lithium ion batteries. - Graphical abstract: A novel strategy of combining template assisted and solvothermal alcoholysis is employed to prepare unique core–void–shell anatase TiO₂ nanoparticle aggregates with the superior photocatalytic activity and improved lithium storage. Highlights: • TiO₂ mesospheres are synthesized by solvothermal alcoholysis. • It is core–void–shell structure and the thickness of shell is estimated to 80 nm. • It exhibits a remarkable photocatalytic activity and improved lithium storage.

• OSTI ID: 22306278
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Vol. 201; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
77 NANOSCIENCE AND NANOTECHNOLOGY
CALCINATION
ELECTRIC BATTERIES
ETHANOL
LITHIUM
LITHIUM IONS
NANOPARTICLES
NANOSTRUCTURES
PHOTOCATALYSIS
POROSITY
TITANIUM OXIDES