Single‐Crystalline Iron Oxide Nanotubes

Jia, Chun‐Jiang; Sun, Ling‐Dong; Yan, Zheng‐Guang; You, Long; Luo, Feng; Han, Xiao; Pang, Yucheng; Zhang, Ze; Yan, Chun‐Hua

doi:10.1002/anie.200463038

Cited by 517 publications

(390 citation statements)

References 46 publications

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“…2. These results agree with those reported by Jia et al 20 in XRD patterns of hematite nanotubes and tube-in-tube nanostructures 21 grown by hydrothermal methods.…”

Section: -3supporting

confidence: 93%

Shape-controlled synthesis and cathodoluminescence properties of elongated α-Fe2O3 nanostructures

Chioncel¹,

Dı́az-Guerra²,

Piqueras³

2008

Journal of Applied Physics

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α -Fe 2 O 3 (hematite) nanostructures with various morphologies have been grown by thermal oxidation of compacted iron powder at temperatures between 700 and 900 °C. Different thermal treatments have been found to induce the growth of single-crystalline nanowires, nanobelts, nanoplates and featherlike structures, free and caped nanopillars, and pyramidal microcrystals or cactuslike microstructures. The experimental conditions leading to the different morphologies have been systematically investigated, as well as the possible growth mechanisms. The obtained nanostructures have been characterized by scanning electron microscopy (SEM), high-resolution transmission electron microscopy, x-ray diffraction, and cathodoluminescence (CL) spectroscopy in the SEM. The formation of the nanostructures induces changes in the intensity and spectral distribution of the CL emission, as compared with the bulk material. Ligand to metal charge transfer transitions as well as Fe3+ ligand field transitions are thought to be involved in the observed luminescence. The evolution of the panchromatic CL intensity in the visible range as a function of temperature shows some anomalies that may be induced by magnetic ordering effects.

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“…2. These results agree with those reported by Jia et al 20 in XRD patterns of hematite nanotubes and tube-in-tube nanostructures 21 grown by hydrothermal methods.…”

Section: -3supporting

confidence: 93%

Shape-controlled synthesis and cathodoluminescence properties of elongated α-Fe2O3 nanostructures

Chioncel¹,

Dı́az-Guerra²,

Piqueras³

2008

Journal of Applied Physics

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“…3,4 Up to now, various methods have been developed for the synthesis of inorganic nanotubes and tube-intubes, such as the template method, 5 galvanic replacement reaction, 6 hydrothermal method, 7 nonequilibrium heat-treatment approach, 8 and multifluidic compound-jet electrospinning techniques. 9 Using these methods, some hollow and tube-in-tube structure nanomaterials have been fabricated successfully.…”

mentioning

confidence: 99%

“…9 Using these methods, some hollow and tube-in-tube structure nanomaterials have been fabricated successfully. 7,8,10,11 Nevertheless, an effective controllable synthesis method of tubular and multitubular micro-and nanofibers still has not been established.…”

mentioning

confidence: 99%

Controllable Synthesis of Porous α-Fe2O3 Microtube and Tube-in-tube by Non-coaxial Electrospinning

Lang

2013

Chemistry Letters

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We present a facile non-coaxial electrospinning technique to synthesize the porous α-Fe2O3 microtube and tube-in-tube. The possible formation mechanism of different tubular-structure α-Fe2O3 has been proposed. Among the experimental parameters, the heating rate during calcination is a key factor for realizing different α-Fe2O3 structures. The slower heating rate is of benefit to form α-Fe2O3 fiber with tube-in-tube structure. This method is versatile and can be extended to construct other hollow and multitubular metal oxide nanofibers, such as ZrO2, SiO2, SnO2, and In2O3 tube-in-tubes.

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“…Iron oxide may be prepared in the course of vacuum pyrolysis or sol-gel [14] and hydrothermal methods [15]. Beneficial properties of iron oxide nanoparticles have been reported.…”

Section: Introductionmentioning

confidence: 99%

Microwave and UV Assisted Methods for Obtaining Novel Composites Based on Fe2O3 with Embedded Gold Nanoparticles

2017

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Metallic nanoparticles embedded into the structure of metal oxides may play a role of catalytic substances. Such composites are mostly applied in oxidation reactions. The paper presents two one-step-methods for obtaining nanocomposites of gold embedded in the structure of iron oxide matrices (nanoAu/Fe 2 O 3 ). Gold nanoparticles were formed in situ in the process of iron hydroxide dehydration. Thanks to the use of tannic acid it was possible to effectively reduce gold ions and stabilize the forming metal nanoparticles. The composites were prepared in the fields of microwave, ultraviolet radiation. The physicochemical properties of products were determined by scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, X-ray analysis and high-resolution transmission electron microscopy technique with EDS and elemental mapping mode. Also, the catalytic activity of the nanocomposites obtained was evaluated based on the process of methyl orange degradation. It was observed that products obtained according to the microwave radiation method are characterized by improved applying properties.

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Single‐Crystalline Iron Oxide Nanotubes

Cited by 517 publications

References 46 publications

Shape-controlled synthesis and cathodoluminescence properties of elongated α-Fe2O3 nanostructures

Shape-controlled synthesis and cathodoluminescence properties of elongated α-Fe2O3 nanostructures

Controllable Synthesis of Porous α-Fe2O3 Microtube and Tube-in-tube by Non-coaxial Electrospinning

Microwave and UV Assisted Methods for Obtaining Novel Composites Based on Fe2O3 with Embedded Gold Nanoparticles

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