Rapid and facile synthesis of hierarchically mesoporous TiO<sub>2</sub>–B with enhanced reversible capacity and rate capability

Liu, Yubin; Guo, Minghuang; Liu, Zhenwei; Wei, Qing; Mao, Wei

doi:10.1039/c7ta09264d

Cited by 34 publications

(6 citation statements)

References 36 publications

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“…When compared with previous literature, the specific capacity of the optimal material (TIO220_12) was higher than Li 4 Ti 5 O 12 and other TiO 2 − materials, as well as other carbonaceous materials. ,,, However, we found that TIO220_12 was able to maintain excellent stability and possessed a long life cycle compared to carbonaceous materials and titanium oxide-based materials. Moreover, the precursors used to prepare TiO 2 (B) nanorods were naturally abundant, nontoxic, environmentally friendly, and low cost.…”

Section: Electrochemical Measurementmentioning

confidence: 46%

Development of Bronze Phase Titanium Dioxide Nanorods for Use as Fast-Charging Anode Materials in Lithium-Ion Batteries

et al. 2023

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Bronze phase titanium dioxide (TiO 2 (B)) nanorods were successfully prepared via a hydrothermal method together with an ion exchange process and calcination by using anatase titanium dioxide precursors in the alkali hydrothermal system. TiO 2 precursors promoted the elongation of nanorod morphology. The different hydrothermal temperatures and reaction times demonstrated that the synthesis parameters had a significant influence on phase formation and physical morphologies during the fabrication process. The effects of the synthesis conditions on the tailoring of the crystal morphology were discussed. The growth direction of the TiO 2 (B) nanorods was investigated by X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The as-synthesized TiO 2 (B) nanorods obtained after calcination were used as anode materials and tested the efficiency of Li-ion batteries. This research will study the effects of particle morphologies and crystallinity of TiO 2 (B) derived from a modified hydrothermal method on the capacity and charging rate of the Li-ion battery. The TiO 2 (B) nanorods, which were synthesized by using a hydrothermal temperature of 220 °C for 12 h, presented excellent electrochemical performance with the highest Li storage capacity (348.8 mAh/g for 100 cycles at a current density of 100 mA/g) and excellent high-rate cycling capability (a specific capacity of 207.3 mAh/g for 1000 cycles at a rate of 5000 mA/g).

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Section: Electrochemical Measurementmentioning

confidence: 46%

Development of Bronze Phase Titanium Dioxide Nanorods for Use as Fast-Charging Anode Materials in Lithium-Ion Batteries

et al. 2023

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“…25 The peaks of TO ev are basically tallies with the Raman modes of the TiO 2 (B) phase based on previous studies (Figure S4b). 26 The stoichiometry and chemical state were studied by X-ray photoelectron spectroscopy (XPS). In Figure 2c, the survey spectra show the existence of O, Ti, and K and nonexplicit metal oxides in KTO samples.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Design of Layer Structure Metal Oxide Material with Dual-Ion Defects for High-Performance Aqueous Zn Ion Batteries

Li,

Guo,

Cao

et al. 2023

ACS Sustainable Chem. Eng.

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Layer structure metal oxides are promising energy storage materials for rechargeable batteries. However, they are still hindered by insufficient ion storage sites and sluggish ion diffusion kinetics during ion insertion/extraction, leading to unsatisfactory battery performance. Herein, we have successfully designed layer structure metal oxides with regulated dual-ion defects via the ion exchange and annealing processes. As for demonstration, a K iv TO ev @Ti anode with dual-ion defects by incorporating with the interlaminar K vacancies and layer edge O vacancies in layer structure potassium titanate (KTO) was synthesized for Zn ion batteries. The bionic defects in the K iv TO ev @Ti anode are indicated to provide extra space for potent Zn ion storage and enhance the Zn ion diffusion rate. Complete inner layer structure and residual interlayer K ion pillars ensure that the K iv TO ev @Ti anode has highly structural stability and reversible electrochemistry. Therefore, K iv TO ev @Ti delivers a favorable Zn ion storage capability of 179.2 mAh g −1 at 0.05 A g −1 , and a remarkable cycling stability of 82% capacity retention after 5000 cycles at 0.5 A g −1 . The Zn x MnO 2 //K iv TO ev @Ti full cell presents an excellent power/ energy density of 583.5 W kg −1 /97.8 Wh kg −1 , respectively, and maintains a capacity retention of 90% after 5000 cycles. This work can enlighten material engineering for energy storage area.

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“…Synthesis of TiO 2 (B) by a Two-Step Hydrothermal Reaction: TiO 2 (B) was typically synthesized by the method in Note S1 (Supporting Information) and denoted as TiO 2 @GA-TBOT. [28] The synthetic approaches of TiO 2 (B) were further optimized by i) adding more GA (named as TiO2@4.5GA-TBOT, TiO2@5.5GA-TBOT), and ii) changing the addition order of GA and tetrabutyl titanate (TBOT, added before GA). Specifically, the TBOT was dissociated into butanol (Bu) in the absence of GA, which was evaporated with water during stirring (the evaporated water was replenished and the GA was then added) and the as-prepared sample was named as TiO 2 @TBOT-GA.…”

Section: Methodsmentioning

confidence: 99%

Tailored Design Ti⁴⁺ Coordination via Coplanar Carboxyl and Hydroxyl Groups Toward High Purity TiO₂(B) with Ultrafast Li⁺ Storage

Ke,

Li,

Chen

et al. 2024

Adv Funct Materials

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TiO2(B) is a promising anode material for lithium‐ion batteries (LIBs) due to its fast lithiation/delithiation kinetics, however, its thermodynamic metastable nature makes it difficult to synthesize pure phase, which significantly affects its lithium storage capability. Herein, the structural evolution from precursor to TiO2(B) is systematically investigated and it is revealed that the formation of high‐purity monoclinic HTO (hydrogen titanate) precursor is the key to preparing TiO2(B) with high purity, which can be achieved via tailored‐design the solvent structures of Ti4+ in the precursor solution. Glycolic acid (GA) is favorable for the synthesis of high‐purity HTO, benefiting from its simplest spatial structure and coplanar carboxyl and hydroxyl groups for Ti4+ coordination, further leading to the formation of TiO2(B) with a high phase purity of 98.83% that exhibits excellent rate capability (80.5% capacity retention with current densities increased from 1 to 30 C), thus making it a promising candidate for simultaneous energy and power density LIBs anode.

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Rapid and facile synthesis of hierarchically mesoporous TiO₂–B with enhanced reversible capacity and rate capability

Abstract: A rapid and facile synthetic route has been developed to fabricate hierarchically mesoporous TiO2–B, which is composed of nanoparticles and exhibits enhanced reversible capacity and rate capability in lithium ion batteries.

Cited by 34 publications

References 36 publications

Development of Bronze Phase Titanium Dioxide Nanorods for Use as Fast-Charging Anode Materials in Lithium-Ion Batteries

Development of Bronze Phase Titanium Dioxide Nanorods for Use as Fast-Charging Anode Materials in Lithium-Ion Batteries

Design of Layer Structure Metal Oxide Material with Dual-Ion Defects for High-Performance Aqueous Zn Ion Batteries

Tailored Design Ti⁴⁺ Coordination via Coplanar Carboxyl and Hydroxyl Groups Toward High Purity TiO₂(B) with Ultrafast Li⁺ Storage

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Rapid and facile synthesis of hierarchically mesoporous TiO2–B with enhanced reversible capacity and rate capability

Abstract: A rapid and facile synthetic route has been developed to fabricate hierarchically mesoporous TiO2–B, which is composed of nanoparticles and exhibits enhanced reversible capacity and rate capability in lithium ion batteries.

Cited by 34 publications

References 36 publications

Development of Bronze Phase Titanium Dioxide Nanorods for Use as Fast-Charging Anode Materials in Lithium-Ion Batteries

Development of Bronze Phase Titanium Dioxide Nanorods for Use as Fast-Charging Anode Materials in Lithium-Ion Batteries

Design of Layer Structure Metal Oxide Material with Dual-Ion Defects for High-Performance Aqueous Zn Ion Batteries

Tailored Design Ti4+ Coordination via Coplanar Carboxyl and Hydroxyl Groups Toward High Purity TiO2(B) with Ultrafast Li+ Storage

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About

Rapid and facile synthesis of hierarchically mesoporous TiO₂–B with enhanced reversible capacity and rate capability

Tailored Design Ti⁴⁺ Coordination via Coplanar Carboxyl and Hydroxyl Groups Toward High Purity TiO₂(B) with Ultrafast Li⁺ Storage