Structural and photoelectrochemical properties of porous TiO2 nanofibers decorated with Fe2O3 by sol-flame

Sobti, N.; Bensouici, A.; Coloma, Fernando; Untiedt, Carlos; Achour, S.

doi:10.1007/s11051-014-2577-x

Cited by 24 publications

(10 citation statements)

References 43 publications

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“…710.3 eV and 724.0 eV, confirming the presence of Fe 3+ . 46,47 Fig. 6(c) shows the survey-scan XPS spectra of Fe 2 O 3 /TiO 2 with a thickness around 720 nm.…”

Section: Resultsmentioning

confidence: 99%

Constructing Fe₂O₃/TiO₂ core–shell photoelectrodes for efficient photoelectrochemical water splitting

et al. 2015

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In this study, plasma enhanced chemical vapor deposition (PECVD) was utilized to co-axially modify hydrothermally grown Fe2O3 nanorod arrays by depositing a TiO2 overlayer to create Fe2O3/TiO2 core-shell photoelectrodes. Comprehensive structural (XRD, SEM, TEM) and compositional (XPS) analyses were performed to understand the effects of the TiO2 shell on the PEC activities of the Fe2O3 core. It was revealed that the heterojunction structure formed between TiO2 and Fe2O3, significantly improved the separation efficiency of photo-induced charge carriers and the oxygen evolution kinetics. A maximum photocurrent density of ∼900 μA cm(-2) at 0.6 V vs. saturated calomel electrode (SCE) was obtained for the Fe2O3/TiO2 photoelectrodes, which was 5 and 18 times higher when compared to that of hydrothermally synthesized Fe2O3 and PECVD synthesized TiO2 electrodes, respectively. Moreover, the Fe2O3/TiO2 core-shell nanorod arrays displayed superior stability for PEC water splitting. During 5000 s PEC measurements, a steady decrease of the photocurrent was observed, mainly attributed to the evolution of oxygen bubbles adsorbed on the working electrodes. This observation was verified by the complete recovery of the PEC performance demonstrated for a second 5000 s PEC measurement carried out after a brief time interval (10 min) that allowed the electrode surface to regenerate.

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“…710.3 eV and 724.0 eV, confirming the presence of Fe 3+ . 46,47 Fig. 6(c) shows the survey-scan XPS spectra of Fe 2 O 3 /TiO 2 with a thickness around 720 nm.…”

Section: Resultsmentioning

confidence: 99%

Constructing Fe₂O₃/TiO₂ core–shell photoelectrodes for efficient photoelectrochemical water splitting

et al. 2015

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“…228 It has been reported that the combination of Fe 2 O 3 NPs and TiO 2 NFs has advantages over the individual materials and enhances light absorption. 256 An effective strategy to overcome photocorrosion and toxicity problems from CdS-based materials is their incorporation in polymeric NFs. CdS and CdS-PdS NPs were mixed in poly(vinyl acetate) electrospun NFs and the composite produced more H 2 than bare CdS NPs.…”

Section: Nanorodsmentioning

confidence: 99%

Review of one-dimensional and two-dimensional nanostructured materials for hydrogen generation

Babu

Vempati

Uyar

et al. 2015

Phys. Chem. Chem. Phys.

158

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Hydrogen is an attractive alternative to fossil fuels in terms of environmental and other advantages. Of the various production methods for H 2 , photocatalysis requires further development so that it can be applied economically on an industrial scale. One-and two-dimensional nanostructures in both pristine and modified forms have shown great potential as catalysts in the generation of H 2 . We review here recent developments in these nanostructure catalysts and their efficiency in the generation of H 2 under UV/visible/simulated solar light. Despite much research effort, many photocatalysts do not yet meet the practical requirements for the generation of H 2 , such as visible light activity. H 2 production is dependent on a variety of parameters and factors. To meet future energy demands, several challenges in H 2 production still need to be solved. We address here the factors that influence the efficiency of H 2 production and suggest alternatives. The nanostructures are classified based on their morphology and their efficiency is considered with respect to the influencing parameters. We suggest effective ways of engineering catalyst combinations to overcome the current performance barriers.

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“…[30][31][32] Accordingly, the combination of these two semiconductors has attracted many attentions recently. [33][34][35][36][37][38][39][40][41][42][43] In this work, a composite electrode of a-Fe 2 O 3 /TiO 2 was introduced as a photoanode for PEC cells. The SILAR method was used for the deposition of a-Fe 2 O 3 on the TiO 2 substrate.…”

Section: Introductionmentioning

confidence: 99%

Enhanced photocatalytic water splitting of a SILAR deposited α-Fe₂O₃ film on TiO₂ nanoparticles

et al. 2019

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Structural and photoelectrochemical properties of porous TiO2 nanofibers decorated with Fe2O3 by sol-flame

Cited by 24 publications

References 43 publications

Constructing Fe₂O₃/TiO₂ core–shell photoelectrodes for efficient photoelectrochemical water splitting

Constructing Fe₂O₃/TiO₂ core–shell photoelectrodes for efficient photoelectrochemical water splitting

Review of one-dimensional and two-dimensional nanostructured materials for hydrogen generation

Enhanced photocatalytic water splitting of a SILAR deposited α-Fe₂O₃ film on TiO₂ nanoparticles

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Structural and photoelectrochemical properties of porous TiO2 nanofibers decorated with Fe2O3 by sol-flame

Cited by 24 publications

References 43 publications

Constructing Fe2O3/TiO2 core–shell photoelectrodes for efficient photoelectrochemical water splitting

Constructing Fe2O3/TiO2 core–shell photoelectrodes for efficient photoelectrochemical water splitting

Review of one-dimensional and two-dimensional nanostructured materials for hydrogen generation

Enhanced photocatalytic water splitting of a SILAR deposited α-Fe2O3 film on TiO2 nanoparticles

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Product

Resources

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Constructing Fe₂O₃/TiO₂ core–shell photoelectrodes for efficient photoelectrochemical water splitting

Constructing Fe₂O₃/TiO₂ core–shell photoelectrodes for efficient photoelectrochemical water splitting

Enhanced photocatalytic water splitting of a SILAR deposited α-Fe₂O₃ film on TiO₂ nanoparticles