Ag or Au Nanoparticle-Embedded One-Dimensional Composite TiO<sub>2</sub> Nanofibers Prepared via Electrospinning for Use in Lithium-Ion Batteries

Nam, Sang Hoon; Shim, Hee-Sang; Kim, Youn-Su; Dar, Mushtaq Ahmad; Kim, Jong Guk; Kim, Won

doi:10.1021/am100319u

Cited by 262 publications

(175 citation statements)

References 43 publications

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“…1, 2 Among the different transparent materials, TiO2 is one of the most studied partially because of its interesting properties and promising applications in photocatalysis, solar cells, batteries or gas sensors. [3][4][5][6][7][8][9][10][11][12][13][14] Moreover, from the synthesis point of view, TiO2 results especially relevant because of the different synthetic methods that can be employed to obtain this material. For instance, TiO2 UV photodetectors fabricated by sol-gel, potentiostatic anodization or radio-frequency magnetron sputtering have been recently demonstrated.…”

Section: Introductionmentioning

confidence: 99%

Highly responsive UV-photodetectors based on single electrospun TiO₂ nanofibres

et al. 2016

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In this work we study the optoelectronic properties of individual TiO2 fibres produced through coupled sol-gel and electrospinning, by depositing them onto pre-patterned Ti/Au electrodes on SiO2/Si substrates. Transport measurements in the dark give a conductivity above 2·10 -5 S, which increases up to 8·10 -5 S in vacuum. Photocurrent measurements under UV-irradiation show high sensitivity (responsivity of 90 A·W -1 for 375 nm wavelength) and a response time to illumination of ~ 5 s, which is superior to state-of-the-art TiO2-based UV photodetectors. Both responsivity and response speed are higher in air than in vacuum, due to oxygen adsorbed on the TiO2 surface which traps photoexcited free electrons in the conduction band, thus reducing the recombination processes. The photodetectors are sensitive to light polarization, with an anisotropy ratio of 12%. These results highlight the interesting combination of large surface area and low 1D transport resistance in electrospun TiO2 fibres. The simplicity of the sol-gel/electrospinning synthesis method, combined with a fast response and high responsivity makes them attractive candidates for UV-photodetection in ambient conditions. We anticipate their high (photo) conductance is also relevant for photocatalysis and dye-sensitized solar cells.

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Section: Introductionmentioning

confidence: 99%

Highly responsive UV-photodetectors based on single electrospun TiO₂ nanofibres

et al. 2016

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“…However, little work has been devoted to fabrication of noble metal loaded TiO 2 mesoporous nanobers, remaining a signicant challenge. [42][43][44][45] The present study employed the electrospinning technique combined with other proposed process to prepare Ag@TiO 2 mesoporous nanobers. As inspired by previous work, 46 diisopropyl azodiformate (DIPA) was added to the initial spinning solutions and homogeneous boxed throughout the precursor (tetrabutyl titanate (TBOT) and polyvinylpyrrolidone (PVP)) to create a porous structure.…”

Section: -21mentioning

confidence: 99%

Mesoporous Ag@TiO₂ nanofibers and their photocatalytic activity for hydrogen evolution

et al. 2017

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Photocatalytic hydrogen evolution is a promising solution to energy and environmental problems. The grand challenge for its application is how to make photocatalysts with satisfactory efficiency. In the present work, exploration of Ag@TiO 2 mesoporous nanofibers via two strategies is reported, namely in situ electrospinning preparation (strategy I) and electrospinning combined with subsequent photodeposition (strategy II). The photocatalytic behavior of the as-synthesized Ag@TiO 2 hybrid nanofibers was evaluated in terms of hydrogen evolution efficiency for the photodecomposition of water under Xe lamp irradiation. It was found that incorporation of Ag nanoparticles into the TiO 2 mesoporous nanofibers could enhance remarkably their photocatalytic efficiency. The products prepared through strategy I exhibited the highest photocatalytic performance as compared with those prepared by strategy II. Current work might give some insight into exploration of stable binary photocatalysts, which have potential applications for efficient hydrogen evolution.

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“…As shown in Fig. 13, nitridation [136,137], metal nanoparticles [138,139], and carbon matrix [140][141][142][143] were usually applied to enhance the electronic conductivity of TiO 2 nanofibers. Han et al [137] produced N-doped TiO 2 hollow nanofibers via one typical electrospinning process and subsequent nitridation process in the NH 3 atmosphere.…”

Section: Metal Oxidesmentioning

confidence: 99%

Nanostructured electrode materials for lithium-ion and sodium-ion batteries via electrospinning

Zeng

et al. 2016

Sci. China Mater.

130

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Electrospinning has attracted tremendous attention in the design and preparation of 1D nanostructured electrode materials for lithium-ion batteries (LIBs) and sodium-ion batteries (NIBs), due to the versatility and facility. In this review, we present a comprehensive summary of the development of electrospun electrode nanomaterials for LIBs and NIBs, and a brief introduction about electrode materials beyond LIBs and NIBs. By summarizing various electrochemical active materials, this review focuses on the evolution in structures and the constitution of electrospun electrode materials. In detail, a variety of electrospun anode and cathode materials of LIBs and NIBs have been properly discussed, respectively. Finally, the current progress in the electrospun electrode materials is well reviewed and the development direction is also pointed out. We believe that in the nearly future, electrospun electrode materials would be applied in commercial LIBs and promote the advance in NIBs. And we hope that this review could be helpful in the design and fabrication of electrospun hierarchical materials for other advanced energy-storage devices.

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Ag or Au Nanoparticle-Embedded One-Dimensional Composite TiO₂ Nanofibers Prepared via Electrospinning for Use in Lithium-Ion Batteries

Cited by 262 publications

References 43 publications

Highly responsive UV-photodetectors based on single electrospun TiO₂ nanofibres

Highly responsive UV-photodetectors based on single electrospun TiO₂ nanofibres

Mesoporous Ag@TiO₂ nanofibers and their photocatalytic activity for hydrogen evolution

Nanostructured electrode materials for lithium-ion and sodium-ion batteries via electrospinning

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Ag or Au Nanoparticle-Embedded One-Dimensional Composite TiO2 Nanofibers Prepared via Electrospinning for Use in Lithium-Ion Batteries

Cited by 262 publications

References 43 publications

Highly responsive UV-photodetectors based on single electrospun TiO2 nanofibres

Highly responsive UV-photodetectors based on single electrospun TiO2 nanofibres

Mesoporous Ag@TiO2 nanofibers and their photocatalytic activity for hydrogen evolution

Nanostructured electrode materials for lithium-ion and sodium-ion batteries via electrospinning

Contact Info

Product

Resources

About

Ag or Au Nanoparticle-Embedded One-Dimensional Composite TiO₂ Nanofibers Prepared via Electrospinning for Use in Lithium-Ion Batteries

Highly responsive UV-photodetectors based on single electrospun TiO₂ nanofibres

Highly responsive UV-photodetectors based on single electrospun TiO₂ nanofibres

Mesoporous Ag@TiO₂ nanofibers and their photocatalytic activity for hydrogen evolution