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• W2910378577 endingPage "4774" @default.
• W2910378577 startingPage "4767" @default.
• W2910378577 abstract "Abstract An original, halide‐free non‐hydrolytic sol–gel route to mesoporous anatase TiO 2 with hierarchical porosity and high specific surface area is reported. This route is based on the reaction at 200 °C of titanium(IV) isopropoxide with acetic anhydride, in the absence of a catalyst or solvent. NMR spectroscopic studies indicate that this method provides an efficient, truly non‐hydrolytic and aprotic route to TiO 2 . Formation of the oxide involves successive acetoxylation and condensation reactions, both with ester elimination. The resulting TiO 2 materials were nanocrystalline, even before calcination. Small (about 10 nm) anatase nanocrystals spontaneously aggregated to form mesoporous micron‐sized particles with high specific surface area (240 m 2 g −1 before calcination). Evaluation of the lithium storage performances shows a high reversible specific capacity, particularly for the non‐calcined sample with the highest specific surface area favouring pseudo‐capacitive storage: 253 mAh g −1 at 0.1 C and 218 mAh g −1 at 1 C (C=336 mA g −1 ). This sample also shows good cyclability (92 % retention after 200 cycles at 336 mA g −1 ) with a high coulombic efficiency (99.8 %). Synthesis in the presence of a solvent (toluene or squalane) offers the possibility to tune the morphology and texture of the TiO 2 nanomaterials." @default.
• W2910378577 created "2019-01-25" @default.
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• W2910378577 date "2019-03-04" @default.
• W2910378577 modified "2023-10-18" @default.
• W2910378577 title "Acetic Anhydride as an Oxygen Donor in the Non‐Hydrolytic Sol–Gel Synthesis of Mesoporous TiO ₂ with High Electrochemical Lithium Storage Performances" @default.
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• W2910378577 doi "https://doi.org/10.1002/chem.201806073" @default.
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• W2910378577 hasPublicationYear "2019" @default.
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