Hollandite-type TiO<sub>2</sub>: a new negative electrode material for sodium-ion batteries

Pérez-Flores, Juan Carlos; Baehtz, Carsten; Kühn, A.; Garcı́a-Alvarado, F.

doi:10.1039/c3ta13394j

Cited by 89 publications

(73 citation statements)

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“…9 This phenomenon is obviously different from anatase TiO 2 and hollandite-type TiO 2 , 24,25 however, similar with rutile TiO 2 .…”

Section: +mentioning

confidence: 77%

“…The rst coulombic efficiency is calculated to be 45.1%, indicating huge irreversible capacity loss, which is in accordance with most of the TiO 2 anode materials for sodium ion batteries. 13,16,24,25,27,29,31,36 The origin of the initial huge irreversibility of TiO 2 (B) anode materials, recently discussed by Wu et al, 9 may be related to electrolyte decomposition and reorganization of TiO 2 during the initial sodiation. Nevertheless, further studies will have to be carried out in future to dene the detailed reasons for this huge irreversible capacity loss in case of TiO 2 (B).…”

Section: +mentioning

confidence: 99%

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Nitrogen-doped TiO₂(B) nanorods as high-performance anode materials for rechargeable sodium-ion batteries

et al. 2017

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To achieve better anode materials for sodium ion batteries, a nitrogen-doped TiO 2 (B) nanorod structure is developed utilizing hydrothermal treatment, ion exchange and a subsequent low temperature calcination process. Transmission electron microscopy, X-ray photoelectron spectroscopy and X-ray diffraction are employed to characterize the structure and properties of the nitrogen-doped TiO 2 (B). Compared with anatase TiO 2 powder (325 mesh) raw materials and the TiO 2 (B) nanorods without N-doping, the asfabricated nitrogen-doped TiO 2 (B) nanorods with a nitrogen-doping amount of 1.23 atom% exhibit higher specific capacity (224.5 mA h g À1 ), good cycling stability (the capacity retention ratios after 200 cycles at 2C is 93.4%) and enhanced rate capability (110 mA h g À1 at 3.35 A g À1 ), which is likely to be associated with enhanced conductivity due to N-doping.

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“…9 This phenomenon is obviously different from anatase TiO 2 and hollandite-type TiO 2 , 24,25 however, similar with rutile TiO 2 .…”

Section: +mentioning

confidence: 77%

Section: +mentioning

confidence: 99%

Nitrogen-doped TiO₂(B) nanorods as high-performance anode materials for rechargeable sodium-ion batteries

et al. 2017

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“…These empty zigzag channels offer possible sites for Na-ion accommodation and suitable pathways for Na-ion diffusion. 44 The electrode of hollandite-type TiO2 exhibits an initial discharge capacity of 280 mA h g -1 and a reversible capacity of 85 mA h g -1 at C/8 rate over the potential range of 0.2-2.5 V. Although far from the theoretical capacity (335 mA h g -1 ), the TiO2 (H) phase is still considered as an interesting anode for SIBs. This is the first report on nanocrystalline anatase TiO2 as an anode material for SIBs.…”

Section: Tio2mentioning

confidence: 99%

Nanostructured Ti-based anode materials for Na-ion batteries

2016

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With the shortage of fossil energy and global climate change, renewable energy sources offer the most promise to these challenges. However, the intermittence of energy sources such as solar and wind requires sustainable energy-storage technologies. Nowadays, electrochemical energy-storage technologies and applications have attracted much attention, including portable electric devices, electric vehicles and smart power grids.Lithium-ion batteries (LIBs) have been widely applied in these areas because of their safety, portability and high energy density. Nevertheless, the resources of lithium are limited and the vast consumption of lithium has pushed up the price of lithium compounds, urging people to search for resourceful materials. Sodium can be a promising alternative for its high abundance and low cost. Furthermore, titanium-based materials have become a hotspot of anode materials in sodium-ion batteries (SIBs), taking advantages of their high 2 safety and structural stability. In this review, we summarize the recent advances on Tibased anode materials for SIB applications. We highlight the design and engineering of the Ti-based nanoarchitectures, especially emphasize on the effective enhancement in performance and the related sodium-storage mechanism. 3 elements on earth. Sodium becomes a suitable candidate due to the high abundance and low cost as well as the similar redox potential to lithium (ENa+/Na = -2.7 V versus standard hydrogen electrode, only 0.3 V above that of lithium). In fact, the research on sodium-ion batteries (SIBs) is not newly developed. The discovery of high-temperature solid-state sodium conductors shed light on sodium electrochemistry. 3 After that, sodium batteries operating at high temperature attracted much attention with the discovery of NASICON. 4 Several decades later, along with the investigation of LIBs in the 1980s, the concept of SIBs was put forward. 5 Whereas LIBs received rapid progress and advanced technology, SIBs faded out researchers' sight gradually.In the past few years, ambient-temperature SIBs with intercalation materials have gone through a revitalization due to the sustainable advantages and large-scale applications.Plenty of cathodes for SIBs have been studied while suitable anode materials are quite limited. 6, 7 Although graphite is widely used as the anode in commercialized LIBs, it shows poor capacity performance in SIBs. Attempts have been made to modify graphite, but there are still some problems demanding solutions. 8 Ti-based materials, including titanium dioxide and a series of Ti-containing compounds, have been widely investigated in photocatalysis, solar cells, and water splitting. In particular, owing to the exceptional chemical durability and crystalline structural diversity, Ti-based materials such as TiO2 [9][10][11][12][13][14][15][16] and Li4Ti5O12 17-20 have now been recently explored in energy-storage areas. In this review, we focus on the recent progress on nanostructured Ti-based anode materials for SIBs. The enhanced performances through ...

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“…To address these issues, rechargeable sodium-ion batteries (NIBs) are proposed as a potential candidate for large-scale energy storage due to the natural abundance and lower cost of sodium 7,8 . For the NIB anode materials, much effort has been focused on low-voltage metal oxide anodes, among which, TiO 2 has attracted considerable attention 2,[9][10][11][12][13] due to its low operation voltage, high capacity, nontoxicity, and low production cost.…”

Section: Introductionmentioning

confidence: 99%

Niobium doped anatase TiO₂ as an effective anode material for sodium-ion batteries

et al. 2015

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Sodium-ion batteries are considered to be a promising low-cost alternative to common lithium-ion batteries in the areas where specific energy is less critical. Among all the anode materials studied so far, TiO2 is very promsing due to its low operation voltage, high capacity, nontoxicity, and low production cost. Herein, we present Nb-doped anatase TiO2 nanoparticles with high capacity, excellent cycling performance, and excellent rate capability. The optimized Nb-doped TiO2 anode delivers a high reversible capacity of 177 mAh/g at 0.1 C and 108.8 mAh/g at 5 C, in contrast to 150.4 mAh/g at 0.1 C and only 54.6 mAh/g at 5 C for the pristine TiO2. The good performance is likely to be associated with enhanced conductivity and lattice expansion due to Nb doping. These results, in combination with its environmental friendliness and cost efficiency, render Nb-doped TiO2 a promising anode material for high-power sodium-ion batteries.Nb-doped anatase TiO 2 anode materials with high reversible sodium storage capacities, excellent cycling stability and rate capability were synthesized by sol-gel method.

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Hollandite-type TiO₂: a new negative electrode material for sodium-ion batteries

Cited by 89 publications

References 50 publications

Nitrogen-doped TiO₂(B) nanorods as high-performance anode materials for rechargeable sodium-ion batteries

Nitrogen-doped TiO₂(B) nanorods as high-performance anode materials for rechargeable sodium-ion batteries

Nanostructured Ti-based anode materials for Na-ion batteries

Niobium doped anatase TiO₂ as an effective anode material for sodium-ion batteries

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Hollandite-type TiO2: a new negative electrode material for sodium-ion batteries

Cited by 89 publications

References 50 publications

Nitrogen-doped TiO2(B) nanorods as high-performance anode materials for rechargeable sodium-ion batteries

Nitrogen-doped TiO2(B) nanorods as high-performance anode materials for rechargeable sodium-ion batteries

Nanostructured Ti-based anode materials for Na-ion batteries

Niobium doped anatase TiO2 as an effective anode material for sodium-ion batteries

Contact Info

Product

Resources

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Hollandite-type TiO₂: a new negative electrode material for sodium-ion batteries

Nitrogen-doped TiO₂(B) nanorods as high-performance anode materials for rechargeable sodium-ion batteries

Nitrogen-doped TiO₂(B) nanorods as high-performance anode materials for rechargeable sodium-ion batteries

Niobium doped anatase TiO₂ as an effective anode material for sodium-ion batteries