Self-organized amorphous TiO2 nanotube arrays on porous Ti foam for rechargeable lithium and sodium ion batteries

Bi, Zhonghe; Paranthaman, M.; A, Menchhofer, Paul; DeHoff, R. T.; Bridges, Craig A.; Chi, Miaofang; Guo, Bingkun; Sun, Xiao‐Guang; Dai, Sheng

doi:10.1016/j.jpowsour.2012.09.019

Cited by 234 publications

(169 citation statements)

References 25 publications

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“…Some pioneering methods have been demonstrated that can be used to construct arrays based on amorphous nanomaterials, such as pulsed laser deposition (PLD) [70], electrochemical oxidation [71,72], reactive ion etching (RIE) [73], solution-based self-assembly [74] and CVD [75].…”

Section: Nanosheetsmentioning

confidence: 99%

“…The large number of under-coordinated atoms (good electron acceptors) and reactive sites at the surface means that amorphous materials also have the advantage over crystalline ones in their contact with the electrolyte and active substances (electron donors), which favors electrochemical processes. In regard to the merits discussed above, amorphous nanomaterials have already demonstrated their superior performance over bulk crystalline materials in various electrochemical applications, including lithium-and/or sodium-ion batteries [51,62,66,71,79,84,[96][97][98][99][100], super-or pseudo-capacitors [77,78,83], electrochemical water splitting [59] and sensors [72,81]. The amorphous CoSnO 3 @C nanoboxes reported by Wang et al [79] showed high initial discharge and charge capacities of around 1,410 and 480 mA h g −1 , respectively, as revealed in Fig.…”

Section: Applications Electrochemical Electrode Materialsmentioning

confidence: 99%

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Tailoring the shape of amorphous nanomaterials: recent developments and applications

2015

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Nanoscale amorphous materials are very important member of the non-crystalline solids family and have emerged as a new category of advanced materials. However, morphological control of amorphous nanomaterials is very difficult because of the atomic isotropy of their internal structures. In this review, we introduce some emerging innovative methods to fabricate well-defined, regular-shaped amorphous nanomaterials. We then highlight some examples to evaluate the use of these amorphous materials in electrodes, and their optical response. There is still plenty of room to explore the amorphous world. As researchers continue to advance the scientific tools that underpin the concepts related to "amorphous", additional applications of these materials will emerge. Their controlled synthesis will undoubtedly attain new heights in the discipline of nanomaterials, and allow nanoscale amorphous materials to become more sophisticated, diverse, and mainstream.

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Section: Nanosheetsmentioning

confidence: 99%

Section: Applications Electrochemical Electrode Materialsmentioning

confidence: 99%

Tailoring the shape of amorphous nanomaterials: recent developments and applications

2015

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“…With the strong awareness of recycled, sustainable, and biodegradable polymeric materials, biopolymers are considered to be prime material for nanocomposites. Silk (Foo et al 2006;Kharlampieva et al 2010), cellulose (Eichhorn et al 2010;Klemm et al 2011;Bi et al 2013), chitin (Alonso and Belamie 2010;Ifuku et al 2010), collagen (Marandi et al 2013), starch (Matsui et al 2004), and alginates (Rhim et al 2006) have all been utilized to prepare organic/inorganic hybrid composites. Different methods have been utilized to fabricate the hybrid materials, which combined the biomass substances with inorganic materials.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Photocatalytic Activity of TiO2-Wrapped Cotton Nanofiber Composite Catalysts

Zhang

Wan

et al. 2017

BioRes

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A novel TiO2-wrapped nanofiber composite catalyst, which possessed a unique porous structure and mixed crystalline phase, was prepared by the combination of superficial sol-gel and post-calcination processes. By means of the superficial sol-gel process, TiO2 layers were deposited on the surface of each nanofiber-like cellulose fiber, and then the TiO2-wrapped nanofiber composite catalysts were calcined at different temperatures under a nitrogen atmosphere. With temperature increasing, the original cotton nanofiber composites were converted into porous carbon nanofiber catalysts wrapped by a TiO2 mixed crystalline phase, which was accompanied by a crystal transformation. The photocatalytic activity of the new catalysts was evaluated by the degradation of methylene blue (MB) under ultraviolet (UV) irradiation. The results demonstrated that the new catalysts had good photocatalytic ability, and the TNC-700 catalyst showed a superior photocatalytic ability compared with the other catalysts; the new catalysts had a unique porous structure, high specific surface area, and mixed crystalline phase. Additionally, the synergistic photocatalytic effect of the TiO2 and activated carbon nanofiber resulted in the efficient degradation of organic pollutants in water or air.

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“…Up to now, various metal substrates, including Cu, [24][25][26][27][28] Ti, [29][30][31][32] and stainless steel, [33,34] have been used to construct oriented and architectured nanoarrays. Taking the Cu substrate as an example, various materials, including CuO nanorods, [24] Cu 3 P nanowires, [25] nanoporous SnO 2 , [26] network-structured CuO, [27] and C-coated SnO x nanosheets, [28] have been grown on Cu foil.…”

Section: Metal-substrate-based Flexible Electrodesmentioning

confidence: 99%

Flexible Electrodes for Sodium‐Ion Batteries: Recent Progress and Perspectives

et al. 2017

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accessible lithium reserves are in remote or in politically sensitive areas. [5] This fact should sound the alarm for the expanded application of LIBs, because the increasing demand for LIBs could cause the price of lithium to skyrocket. It is even predicted that the world will run out of lithium supplies in the foreseeable future. [6][7][8] It is well known that sodium resources are more abundant (abundance: 23.6 × 10 3 mg kg −1 vs 20 mg kg −1 ) and vast (for example, the United States alone possesses 23 billion tons of soda ash which is a sodium-containing precursor) than lithium analog. Additionally, the trona (about $135-165 per ton), which could be used to produce sodium carbonate, has much lower cost than lithium carbonate (about $5000 per ton in 2010). [9,10] These two features endow SIBs with fascinating advantages for large-scale EES applications in the near future. Without doubt, SIBs also face big challenges: performance improvement and technological innovation. Although sodium has similar physical and chemical properties to lithium, the larger ionic radius of sodium ions compared with that of lithium ions restricts the insertion and extraction of sodium ions from the host materials commonly explored for LIBs. To address this problem, optimizing the chemical composition, tailoring the lattice structures, and regulating the morphologies of the host materials seem to be the most applicable strategies, and there have already been several excellent reviews. [11][12][13][14][15][16] As for technological innovation, the traditional fabrication processes mainly based on the slurrycasting method not only make SIBs typically rigid, thick, bulky, and heavy, but also reduce the overall volumetric/gravimetric energy density of the electrode. In the traditional slurry-casting method, the binders are insulating and electrochemically inactive, which can not only decrease the electrical conductivity, but also has a detrimental effect on the cycling stability resulting from some side effects between the electrolyte and inactive materials. In addition, the heavy weight of the binders, conductive additives and current collectors also reduces the volumetric/ gravimetric energy density of the overall electrode. Therefore, to enhance the battery performance and simplify the preparation process, the traditional slurry-casting method should be improved or even replaced; in other words, avoiding the use of binder, conductive additive, and metal current collector.In contrast, flexible electrodes are usually made from various active materials built on flexible conductive substrates without binder, conductive additive, and even metal current collector, Sodium-Ion Batteries

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Self-organized amorphous TiO2 nanotube arrays on porous Ti foam for rechargeable lithium and sodium ion batteries

Cited by 234 publications

References 25 publications

Tailoring the shape of amorphous nanomaterials: recent developments and applications

Tailoring the shape of amorphous nanomaterials: recent developments and applications

Preparation and Photocatalytic Activity of TiO2-Wrapped Cotton Nanofiber Composite Catalysts

Flexible Electrodes for Sodium‐Ion Batteries: Recent Progress and Perspectives

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