title: Asymmetric anatase TiO₂ nanocrystals with exposed high-index facets and their excellent lithium storage properties.
abstract: In this work, we demonstrate a unique organic solvent system to synthesize asymmetric anatase TiO(2) nanocrystals with a bipyramidal structure, where the upper pyramid is bound by (201) facets, and the lower pyramid is bound by (401) surfaces. Due to the high surface energy of these (401) high-index facets, the nanocrystals tend to assemble on these facets to minimize the free energy, leading to the formation of a dandelion-like hierarchical structure.
authors: School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore.
authors: Hao Bin
authors: HB
authors: Wu
authors: Jun Song
authors: JS
authors: Chen
authors: Xiong Wen David
authors: XW
authors: Lou
authors: Huey Hoon
authors: HH
authors: Hng
mesh_terms: D011211:Electric Power Supplies; D008094:Lithium / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: C009495:titanium dioxide; D008094:Lithium; D014025:Titanium