Facile synthesis of FeS2 nanocrystals and their magnetic and electrochemical properties

Xia, Jian; Jiao, Jian; Dai, Bilong; Qiu, Wenda; He, Shenxian; Qiu, Weitao; Shen, Pei Kang; Chen, Liuping

doi:10.1039/c3ra22405h

Cited by 75 publications

(56 citation statements)

References 45 publications

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“…The peaks located at 707.4 and 720.1 eV correspond to Fe 2p 3/2 and Fe 2p 1/2 binding energies respectively, indicating that the peaks are in good agreement with the iron binding energy of bulk pyrite [19,38]. A weak Fe 2p 3/2 satellite peak is shown in the XPS spectra of nanocubes [38][39][40]. In Fig.…”

Section: Characterisation Of Fes Precursorsupporting

confidence: 71%

An efficient precursor to synthesize various FeS₂nanostructures via a simple hydrothermal synthesis method

et al. 2016

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Non-toxic and earth-abundant pyrite (FeS 2 ) is a promising photoelectric material for solar energy conversion and storage. In this study, an efficient FeS precursor was employed to synthesise successfully various shapes of pyrite FeS 2 , such as nanopolyhedra, nanocubes, nanooctahedra, and irregular nanocrystals via a simple hydrothermal method by adjusting the reaction conditions. Pyrite FeS 2 nanopolyhedra and nanocubes were synthesised using the FeS precursor as the single iron source and thiourea (NH 2 CSNH 2 ) as the sulphur source at various reaction temperatures. Nanooctahedra and irregular nanocrystals were obtained using sodium thiosulfate pentahydrate (Na 2 S 2 O 3 •5H 2 O) and sulphur powder as sulphur sources. The effects of polyvinylpyrrolidone content and the molar ratio of the FeS precursor to NH 2 CSNH 2 on the formation of cubic shaped pyrite FeS 2 were investigated. The products were characterised by X-ray diffraction, scanning electron microscopy, energy-dispersive spectroscopy, transmission electron spectroscopy, X-ray photoelectron spectroscopy, and ultraviolet-visible and Raman spectroscopy. The proposed facile hydrothermal method used an efficient FeS precursor as the iron source, which can be easily controlled to produce high-purity pyrite FeS 2 with desirable optical absorption properties.

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Section: Characterisation Of Fes Precursorsupporting

confidence: 71%

An efficient precursor to synthesize various FeS₂nanostructures via a simple hydrothermal synthesis method

et al. 2016

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“…From Table 1, it can also be observed that two sulphurcontaining chemicals have always been preferred as the S sources to synthesize iron pyrite. One is elemental sulphur and the other is Na 2 S 2 O 3 or Na 2 S. Wu et al, 28 Feng et al, 29 Zhang et al 30 and Xia et al 38 used Na 2 S 2 O 3 and elemental sulphur as the S precursors to synthesize iron pyrite at hydrothermal conditions. The iron pyrite samples they obtained contained irregular particles or aggregation of polyhedrons.…”

Section: Hydrothermal Synthesismentioning

confidence: 99%

“…Although various types of surfactants have been supplied in synthesis of pyrite, 27,30,31,33,34,37,38,42,43,45 only a few obtained the {100} and/or {111} facets. 33,34 No facets have been synthesized by employing CTAB and all the pyrite crystals synthesized with CTAB tend to form aggregations.…”

Section: Hydrothermal Synthesismentioning

confidence: 99%

“…However, limited studies have been focused on pH. 33,38,39,42 From these studies, it can be easily found that iron pyrite crystals could easier form regular shapes in an acidic environment 38 than in alkaline. 33,39 Combined with the surfactant of PVP and PVA, the iron pyrite shape can be controlled by only adjusting the NaOH concentration, i.e.…”

Section: Hydrothermal Synthesismentioning

confidence: 99%

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Morphology controllable syntheses of micro- and nano-iron pyrite mono- and poly-crystals: a review

Huang

Zhu

2016

RSC Adv.

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Synthesis of iron pyrite with defined morphology has long been actively pursued, due to the strong size and shape dependence of their chemical and physical properties. This review provides comprehensive information outlining current knowledge regarding the morphology controllable syntheses of micro-and nano-iron pyrite mono-and poly-crystals. The wet-chemical methods are summarized as the controllable syntheses, including the hydrothermal, solvothermal, hot-injection and heating-up methods, sulphidation and methods with other relatively high efficiencies. The present study reveals the discussion of relationship between the morphologies and major controlling factors, the temperature, precursor chemicals, solvents and surfactants. The existing challenges for future fine tuning of iron pyrite facets are also proposed for improving the performance of iron pyrite based materials.

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“…Since the photoelectric characteristics of the natural pyrite were discovered, lots of research works about preparation, crystal structure, morphology and photoelectric property of FeS 2 were reported [1,2]. The optical absorption capacity of pyrite (α410 5 cm À 1 ) is two orders of magnitude higher than that of the monocrystalline Si [3] and pyrite has appropriate band gap of 0.95 eV.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of FeS2 (pyrite) nanotube through sulfuration of Fe2O3 nanotube

et al. 2015

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Facile synthesis of FeS2 nanocrystals and their magnetic and electrochemical properties

Cited by 75 publications

References 45 publications

An efficient precursor to synthesize various FeS₂nanostructures via a simple hydrothermal synthesis method

An efficient precursor to synthesize various FeS₂nanostructures via a simple hydrothermal synthesis method

Morphology controllable syntheses of micro- and nano-iron pyrite mono- and poly-crystals: a review

Synthesis of FeS2 (pyrite) nanotube through sulfuration of Fe2O3 nanotube

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Facile synthesis of FeS2 nanocrystals and their magnetic and electrochemical properties

Cited by 75 publications

References 45 publications

An efficient precursor to synthesize various FeS2nanostructures via a simple hydrothermal synthesis method

An efficient precursor to synthesize various FeS2nanostructures via a simple hydrothermal synthesis method

Morphology controllable syntheses of micro- and nano-iron pyrite mono- and poly-crystals: a review

Synthesis of FeS2 (pyrite) nanotube through sulfuration of Fe2O3 nanotube

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An efficient precursor to synthesize various FeS₂nanostructures via a simple hydrothermal synthesis method

An efficient precursor to synthesize various FeS₂nanostructures via a simple hydrothermal synthesis method