Growth kinetics of sulfur nanoparticles in aqueous surfactant solutions

Chaudhuri, Rajib Ghosh; Paria, Santanu

doi:10.1016/j.jcis.2010.11.039

Cited by 50 publications

(33 citation statements)

References 23 publications

(47 reference statements)

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“…However, owing to the intrinsic properties of elemental sulfur, preparation and further morphology control of nano sulfur are very difficult. Until now there are limited studies available related to synthesis of sulfur nanoparticles [25,26]. Therefore, it is of much importance to develop an efficient and simple route for the scalable application of nano sulfur and its composite materials.…”

Section: Introductionmentioning

confidence: 99%

Core@shell sulfur@polypyrrole nanoparticles sandwiched in graphene sheets as cathode for lithium–sulfur batteries

Zhou

Chen

Yang

2015

Journal of Energy Chemistry

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Section: Introductionmentioning

confidence: 99%

Core@shell sulfur@polypyrrole nanoparticles sandwiched in graphene sheets as cathode for lithium–sulfur batteries

Zhou

Chen

Yang

2015

Journal of Energy Chemistry

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“…As a result, GS2 demonstrated superior charge/discharge capabilities with uniform electrochemical access to the coated sulfur material on graphene oxide. Due considerations, such as the coarsening effect of sulfur leading to larger particles [58], the interactions of sulfur-containing intermediates with the media [59][60][61][62] and interactions with the scaffold should be considered, allowing us to design a better scaffold for the cathode in lithium-sulfur batteries.…”

Section: Resultsmentioning

confidence: 99%

One-Pot Synthesis of Graphene-Sulfur Composites for Li-S Batteries: Influence of Sulfur Precursors

Moo

Omar

Jaumann

et al. 2017

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Lithium-sulfur (Li-S) batteries are postulated as next-generation electrochemical energy storage devices due to their increased storage capabilities. However, challenges persist from the polysulfide-shuttle effect at the cathode. Soluble sulfur-based species in the cathode cross over to the lithium anode through the separator leading to fading capacity with cycling. This has spurred continuous effort by the scientific community to develop novel cathodes where sulfur species can affix better. A conductive nanostructured graphene network is a suitable candidate that can serve as a scaffold for holding sulfur nanoparticles. Here, a one-pot synthesis of chemically reduced graphene oxide networks prepared from easily accessible graphene oxide is demonstrated. The solution-based method simply allows for impregnation of the graphene oxide network with sulfur nanoparticles through a careful manipulation of pH of the chemical environment. Two routes were chosen for the precipitation of such sulfur nanoparticles: firstly, the dissolution of sulfur in sodium hydroxide into polysulfides followed by acidification and secondly, the acidification of sodium thiosulfate from alkaline media into sulfur nanoparticles. Both graphene oxide materials from the two routes were treated with sodium borohydride to achieve conductive graphene. The second route, with the sulfur nanoparticles derived from the acidification of sodium thiosulfate with chemically reduced graphene oxide, demonstrated favorable electrochemical behavior, showing promise as electrode material for Li-S batteries.

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“…Despite the practicable applications of sulfur, limited research works are available in the open literature related to synthesis of sulfur nanoparticles. Synth esis of sulfur nanoparticles (SNPs) have been achieved using various routes including microemulsion method [1,2], surfactant assisted route [3,4], an electrochemical method [5,6], Eggshell membrane as natural biomaterial [7], supersaturated method in the presence of organic modifiers polyethylene glycol (PEG 600) and triethanolamine [8], sublimed sulfur in in a green solvent polyethylene glycol -200 [9], precipitation method [10], from H2S gas by using biodegradable iron chelate catalyst in reverse micro emulsion technique [11], and polysulfide decomposition with various organic and inorganic acids [12]. These methods have many disadvantages due to the difficulty of scale up of the process, separation and purification of nanoparticles from the microemulsion (oil, surfactant, co-surfactant and aqueous phase, and consuming huge amount of surfactant.…”

Section: Introductionmentioning

confidence: 99%

Phytochemical and Spectral Studies of Synthesis sulfur Nanoparticles using Sophora japonica Pods Extract

Awwad

Salem

Abdeen

2015

JAC

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This study aims to investigate the aqueous extract of Sophora japonica pods for the presence of various phytochemicals and to synthesize sulfur nanoparticles. The presence of various phytochemicals viz. polyphenols, alkaloids, terpenoids, flavonoids, and tannins were investigated by standard biochemical methods. A rapid, green and novel approach for synthesis sulfur nanoparticles (SNPs) from sodium thiosulfate in the presence of Sophora japonica pods aqueous extract in one-pot reaction at ambient temperature. The resulting sulfur nanoparticles were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results show that sulfur nanoparticles were successfully synthesized in sphere shape, and with an average particle size 5-100 nm. The effect of plant pods extract concentration on particle size of sulfur nanoparticles shows that can significantly reduce the particle size without changing the shape. The results revealed that the aqueous extract of Sophora japonica pods act as capping, dispersing and stabilizing agent for sulfur nanoparticles. This method is a novel approach for production nanosized sulfur particles, which could be applied to prepare sulfur nanoparticles for application in antimicrobial activity, fertilizers, and plant protection.

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Growth kinetics of sulfur nanoparticles in aqueous surfactant solutions

Cited by 50 publications

References 23 publications

Core@shell sulfur@polypyrrole nanoparticles sandwiched in graphene sheets as cathode for lithium–sulfur batteries

Core@shell sulfur@polypyrrole nanoparticles sandwiched in graphene sheets as cathode for lithium–sulfur batteries

One-Pot Synthesis of Graphene-Sulfur Composites for Li-S Batteries: Influence of Sulfur Precursors

Phytochemical and Spectral Studies of Synthesis sulfur Nanoparticles using Sophora japonica Pods Extract

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