The template-free synthesis of hierarchically porous anatase TiO₂via acid-etching for enhancing the cycling stability and reversible capacity of lithium ion batteries

Abstract

Two-dimensional hierarchically porous anatase TiO2 is fabricated through acetic acid etching. It exhibit high electrochemical stability and high reversible capacity in lithium ion battery.

Ultrahigh Selective Room-Temperature Ammonia Gas Sensor Based on Tin–Titanium Dioxide/reduced Graphene/Carbon Nanotube Nanocomposites by the Solvothermal Method

“…The high-resolution C 1s peak (Figure a) can be deconvoluted into five peaks located at 283.3, 284.8, 286.1, 286.9 and 288.6 eV which correspond to CC, C–C, C–OH, C–O, and COOH groups in rGO/CNT, respectively. − The CC and C–C components refer to the backbone of the rGO/CNT structure, whereas the C–OH, C–O, and COOH bonds indicate the oxygen-containing functional groups. It can be seen that the CC and C–C bonds have higher intensity than the oxygen-containing functional groups of C–OH, C–O, and COOH bonds.…”

Current Advances in TiO2-Based Nanostructure Electrodes for High Performance Lithium Ion Batteries

“…The obtained texture is defined by micropores with a range of 2 to 6 nm and mesopores of 15 to 80 nm. A reversible specific capacity of 191 mAh g −1 was demonstrated for this hierarchical structure at a current rate of 1 A g −1 and this capacity is retained for 60 cycles [115]. Higher capacity obtained by hierarchical, porous anatase structures with high surface area and uniform pore size distribution compared to nonporous TiO2 is attributed to Li + ion intercalation in the conventional octahedral sites of the bulk material and an additional storage possibility in extra sites at interfaces.…”

“…These unique porous nanostructures provide a rapid reactant transport through the larger pore diameters as well as a high surface area which is obtained from the smaller pores acting as active sites for the adsorption/desorption of the reactants. Recently, 2D hierarchically ordered porous anatase with a specific surface area of 486 m 2 g −1 was synthesized by chemical etching of amorphous TiO 2 powder using acetic acid [115]. The obtained texture is defined by micropores with a range of 2 to 6 nm and mesopores of 15 to 80 nm.…”

New insight into the selective photocatalytic oxidation of RhB through a strategy of modulating radical generation

“…a-TiO 2 was synthesized by the processes as reported in our previous work, 44 and also the details can be found in ESI S1. †…”

“…The precipitate was separated by centrifugation at 20 000 rpm, and washed with deionized water and absolute ethanol several times, and nally dried in vacuum at 60 C to obtain yellow hydrosoluble CdS QDs. a-TiO 2 was synthesized by the processes as reported in our previous work, 44 and also the details can be found in ESI S1. †…”