Preparation of α-Fe2O3 nanotubes via electrospinning and research on their catalytic properties

Shao, Huili; Zhang, Xuebin; Chen, Fanyan; Li, Shasha; Ji, Yangbeibei; Zhu, Yajun; Feng, Yi

doi:10.1007/s00339-012-7005-4

Cited by 10 publications

(4 citation statements)

References 23 publications

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“…Therefore, as it is mentioned in the earlier publications, the morphology of α ‐Fe 2 O 3 nanostructure is strongly affected by the calcinations temperature and content of Fe(NO 3 ) 3.9 H 2 O in the structure. As a result, α ‐Fe 2 O 3 nanofibers of different shape, size, and surface microstructure could be obtained by controlling the calcinations temperature and the content of Fe(NO 3 ) 3.9 H 2 O.…”

Section: Resultsmentioning

confidence: 71%

“…Hematite ( α ‐Fe 2 O 3 ) has been investigated largely as a potential photoanode material for PEC water splitting because it is inexpensive, environmentally benign, significant light absorbent, chemically stable in aqueous environments, and especially stable in alkaline electrolytes . It has also widely applications in other disciplines that require superhydrophilic, tunable magnetic, catalytic, and gas‐sensing properties . Due to some limitation of hematite including low absorptivity of photons near its band‐edge, poor electronic conductivity (~10 −2 cm 2 /V −1 /sec −1 ), low rate constant of water oxidation, and fast recombination of photogenerated carriers [short hole diffusion length (∼2–4 nm)], various nanostructured hematite such as nanorods, nanowires, nanotubes, porous, and dendritic nanostructures has been designed and fabricated to address the limitations …”

Section: Introductionmentioning

confidence: 99%

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Synthesis of mesoporous functional hematite nanofibrous photoanodes by electrospinning

Saveh-Shemshaki

Latifi

Bagherzadeh

et al. 2015

Polym. Adv. Technol.

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Iron(III) oxide (hematite, Fe 2 O 3 ) nanofibers, as visible light-induced photoanode for water oxidation reaction of a water splitting process, were fabricated through electrospinning method followed by calcination treatment. The prepared samples were characterized with scanning electron microscopy, and three-electrode galvanostat/potentiostat for evaluating their photoelectrochemical (PEC) properties. The diameter of the as-spun fibers is about 300 nm, and calcinated fibers have diameter less than 110 nm with mesoporous structure. Optimized multilayered electrospun α-Fe 2 O 3 nanostructure mats showed photocurrent density of 0.53 mA/cm 2 under dark and visible illumination conditions at voltage 1.23 V and constant intensity (900 mW/cm 2 ). This photovoltaic performance of nanostructure mats makes it suitable choice for using in the PEC water splitting application as an efficient photoanode. This method, if combined with appropriate flexible conductive substrate, has the potential for producing flexible hematite solar fuel generators.

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Section: Resultsmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Synthesis of mesoporous functional hematite nanofibrous photoanodes by electrospinning

Saveh-Shemshaki

Latifi

Bagherzadeh

et al. 2015

Polym. Adv. Technol.

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“…[149,152] The advantages of iron-based oxides make them not only the research object of lithium-ion batteries but also the electrode of asymmetric supercapacitors (ASCs). There are many methods for the preparation of iron-based oxides, including hydrothermal/solvothermal, [153] sol-gel, [154] electrospinning, [155] vapor deposition, [156] and electrodeposition. [157] The type and structure of the prepared iron oxides generally vary depending on the method used.…”

Section: Transition Metal Oxide Materialsmentioning

confidence: 99%

The Status of Representative Anode Materials for Lithium‐Ion Batteries

Zhao

Liu

et al. 2023

The Chemical Record

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Since the invention of lithium‐ion batteries as a rechargeable energy storage system, it has uncommonly promoted the development of society. It has a wide variety of applications in electronic equipment, electric automobiles, hybrid vehicles, and aerospace. As an indispensable component of lithium‐ion batteries, anode materials play an essential role in the electrochemical characteristics of lithium‐ion batteries. In this review, we described the development from lithium‐metal batteries to lithium‐ion batteries in detail on the time axis as the first step; This was followed by an introduction to several commonly used anode materials, including graphite, silicon, and transition metal oxide with discussions the charge‐discharge mechanism, challenges and corresponding strategies, and a collation of recent interesting work; Finally, three anode materials are summarized and prospected. Hopefully, this review can serve both the newcomers and the predecessors in the field.

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“…Ceramic fibers can be utilized in diverse applications such as energy harvesting, catalysis, and sensing devices . Due to the increasing demand for miniaturization, the synthesis of nanoscale ceramic fibers is drawing a large interest.…”

Section: Introductionmentioning

confidence: 99%

Thermal shrinkage of electrospun PVP nanofibers

Elishav

Beilin

Rozent

et al. 2017

J Polym Sci B Polym Phys

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This paper outlines the shrinkage of electrospun polyvinylpyrrolidone (PVP) fiber mats during thermal treatment. The thermal behavior and phase changes within the fibers were investigated by DSC and TGA/DTA. Five precursors with different PVP loading in ethanol were electrospun. The mats shrinkage as function of temperature was measured in the RT–200 °C range. Shrinkage rate drastically increased above the polymer glass transition point, Tg (150–180 °C), due to increase in polymer chain mobility. Mats shrinkage at 200 °C as function of PVP concentration showed a minimum at ∼10%wt. Below 10% PVP the mats morphology is non‐uniform, consisting of beads and fibers. Above 10% PVP, only flat and uniform fibers were observed. This paper outlines the dominant mechanism governing the mats shrinkage during heating. In addition, the effect of PVP concentration on the expansion of fibers diameter was investigated and found to be consistent with the linear shrinkage observing a minimum at ∼10% PVP. The effect of applied voltage on mat shrinkage was investigated, and showed a minimum at 12 kV. Understanding the interplay between fibers morphology and thermal shrinkage allows precursor composition and system optimization needed for minimizing shrinkage negative effects on the structure and properties of electrospun fiber mats. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2018, 56, 248–254

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Preparation of α-Fe2O3 nanotubes via electrospinning and research on their catalytic properties

Cited by 10 publications

References 23 publications

Synthesis of mesoporous functional hematite nanofibrous photoanodes by electrospinning

Synthesis of mesoporous functional hematite nanofibrous photoanodes by electrospinning

The Status of Representative Anode Materials for Lithium‐Ion Batteries

Thermal shrinkage of electrospun PVP nanofibers

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