2013
DOI: 10.1039/c3ta12920a
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Mesoporous TiO2–B microflowers composed of (1 1̄ 0) facet-exposed nanosheets for fast reversible lithium-ion storage

Abstract: A new method was developed to synthesize nanosheet-assembled TiO 2 -B microflowers for Li-ion batteries. Significantly higher electrochemical performance of these microflowers compared to other TiO 2 -B nanostructures was attributed to their hierarchical microstructure and exposed (1 1 0) facets of the individual nanosheets.One of the key challenges in modern electrochemistry is developing rechargeable batteries that meet environmental constraints and yet possess high energy density, long cycle life, and excel… Show more

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Cited by 61 publications
(77 citation statements)
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“…The absence of the anatase peaks from the x-ray diffraction (XRD) pattern ( Fig. 2a) confirmed the conversion of the TiO 2 anatase phase into TiO 2 bronze and the XRD pattern was found similar to previous reports [26]. As-synthesized NW were 20-40 nm in diameter and 1-5 µm in length ( Fig.…”
Section: Resultssupporting
confidence: 88%
“…The absence of the anatase peaks from the x-ray diffraction (XRD) pattern ( Fig. 2a) confirmed the conversion of the TiO 2 anatase phase into TiO 2 bronze and the XRD pattern was found similar to previous reports [26]. As-synthesized NW were 20-40 nm in diameter and 1-5 µm in length ( Fig.…”
Section: Resultssupporting
confidence: 88%
“…In addition, the electrochemical performance of our material is superior to those of several TiO 2 -B nanostructure ( Fig. 4d ), such as TiO 2 -B nanorods on reduced graphene oxide (RGO) 33 , graphene/TiO 2 -B nanowires 34 , elongated TiO 2 -B nanotubes 17 , mesoporous TiO 2 -B microflowers 35 , and porous TiO 2 -B nanosheets 32 .…”
Section: Resultsmentioning
confidence: 91%
“…[ 22 ] Its theoretical capacity (335 mA h g −1 ) therefore significantly surpasses that (≈170 mA h g −1 ) of anatase or rutile TiO 2 , and is comparable to that (372 mA h g −1 ) of graphitic carbons. In consequence, various TiO 2 (B) nanostructures in the form of, e.g., nanoparticles, [23][24][25] nanorods, [ 26,27 ] nanowires, [28][29][30][31] nanotubes, [32][33][34][35][36] or nanosheets, [ 37,38 ] have been intensively studied as LIB anodes.It is worth noting, however, that the poor intrinsic conductivity of TiO 2 (B) inevitably sets obstacles for its applications as a high-power anode material. In this context, various carbonaceous materials, e.g., activated carbon fabrics, [ 39 ] carbon coatings, [ 40 ] carbon nanotubes, [ 41 ] or graphene nanosheets, [42][43][44][45] are introduced as conductive additives to ease the electron transport, thereby improving the cycle performances of TiO 2 (B) at high rates.…”
mentioning
confidence: 99%