Electrochemical synthesis of copper sulfide nanoparticles

Fotouhi, Lida; Rezaei, Maral

doi:10.1007/s00604-009-0234-3

Cited by 17 publications

(15 citation statements)

References 38 publications

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“…24 Elsewhere, spray pyrolysis deposition from aqueous solution containing CuCl 2 , thiourea (TU), and cationic surfactant has been used for CuS thin lm fabrication. 34 However, the electrochemical deposition of copper sulde thin lms using only single-source precursor solution without using any external surfactants and/or stabilizers is still not found in literature though the uses of single-source precursors have some key advantages over the other conventional methods for preparing inorganic powders, nanoparticles, and thin lms. Yang and Hu 26 synthesized CuS nanoparticles using a copper electrode as a sacricial anode in a Na 2 S 2 O 3 and thioglycerol aqueous solution at a constant potential of 0.5 V. Yang and Hu also noticed that the production of OH À at the cathode facilitated the reaction between Cu 2+ and dissolved sulfur species.…”

Section: Introductionmentioning

confidence: 99%

“…33 In an another report, cyclic voltammetry (0.10 to 1.50 V) method is used to synthesize Cu 2 S nanoparticles in the presence of polyvinylalcohol as stabilizer. 34 However, the electrochemical deposition of copper sulde thin lms using only single-source precursor solution without using any external surfactants and/or stabilizers is still not found in literature though the uses of single-source precursors have some key advantages over the other conventional methods for preparing inorganic powders, nanoparticles, and thin lms. Here, we report for the rst time the electrosynthesis of Cu 2 S nanostructured thin lms from a SP solution.…”

Section: Introductionmentioning

confidence: 99%

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Single-source mediated facile electrosynthesis of p-Cu₂S thin films on TCO (SnO₂:F) with enhanced photocatalytic activities

et al. 2015

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Electrosynthesis of p-Cu 2 S thin films on a fluorine-doped tin oxide coated transparent conducting TCO (SnO 2 :F) glass substrate is carried out by chronoamperometry and cyclic voltammetry (CV) using an ethanolic solution of a single-source precursor (SP), [Cu(mdpa) 2 ][CuCl 2 ] (where mdpa is 3,5-dimethyl pyrazole-1-dithioic acid). The appropriate potential at which the formation of stoichiometric p-Cu 2 S thin films occurs was found to be À0.48 V. The mechanism of the selective deposition of the p-Cu 2 S phase can be described by the electroreduction of Cu-N/S bonds in the coordination sphere following the dissociation of a precursor complex into Cu + and mdpa. The free ligand mdpa is reduced to sulfide ion producing volatile organics in the electrochemical process. The quality deposition of thin films depends on the optimization of the SP concentration. An X-ray diffraction study reveals the high chalcosite phase of copper sulfide with preferential orientation along the (110) plane. The I-V characteristic of the as deposited Cu 2 S/TCO thin film shows a non-ohmic behavior suggesting the formation of a p-n heterojunction diode. The p-Cu 2 S/TCO thin films are found to be excellent photocatalysts for the photo-degradation of Congo Red (CR) under visible light irradiation. It has also been shown that the photocatalytic activity of the deposited thin films increased many fold with the addition of a catalytic amount of hydrogen peroxide in the photo-degradation of Rose Bengal (RB) dye under visible light irradiation. A possible mechanism for the improved photoactivity of p-Cu 2 S/TCO is proposed and involves the electron scavenging property of H 2 O 2 followed by OH À radical formation, significantly accelerating the photodegradation of RB dye.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Single-source mediated facile electrosynthesis of p-Cu₂S thin films on TCO (SnO₂:F) with enhanced photocatalytic activities

et al. 2015

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“…From a pool of 100 publications on metal sulfide NPs, details of metal and sulfur sources used for the synthesis of these particles are obtained [5, 7, 10, 19, 21, 22, 25–27, 30–120] . Care was taken to include only studies that synthesized 0D nanomaterials (NPs) and used only a single source of sulfur for synthesis, which was commercially available at the time of writing.…”

Section: Sulfur Sourcesmentioning

confidence: 99%

Metal Sulfide Nanoparticles: Precursor Chemistry

Balakrishnan

Groeneveld

Pokhrel

et al. 2021

Chemistry A European J

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Fascination with and the need for evermore increasing efficiency, power, or strength have been the cornerstones for developing new materials and methods for their creation. Higher solar cell conversion efficiencies, increased battery storage power, and lightweight strong materials are some that have been at the forefront of attention for these efforts. Materials created for most applications start as simple chemical compounds. A study of how these chemicals have been used in the past can be used to create new materials and new methods of production. Herein, a class of materials that are valuable in a multitude of applications, metal sulfide nanoparticles, are examined, along with how they are being produced and how new methods can be established that will help to standardize and increase production capabilities. Precursor–solvent combinations that can be used to create metal sulfide nanoparticles in the gas phase are also explored.

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“…1 g of sodium sulphide hydrate (purity 60%) was added to the solution and the potential was held overnight (approximately 16 h) to finish the reaction. 7 To precipitate CuS onto graphite, the polycrystalline graphite electrodes were placed into a 0.1 M CuSO 4 solution and vacuum was applied in order to allow the copper sulphate to penetrate into the porous graphite structure. Afterwards, the electrodes were dipped into diluted Na 2 S solution for 20 minutes for CuS precipitation.…”

Section: Electrochemical Setup and General Experimental Conditionsmentioning

confidence: 99%

Copper-bottomed: electrochemically active bacteria exploit conductive sulphide networks for enhanced electrogeneity

Beuth

Pfeiffer

Schröder

2020

Energy Environ. Sci.

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Electrochemical synthesis of copper sulfide nanoparticles

Cited by 17 publications

References 38 publications

Single-source mediated facile electrosynthesis of p-Cu₂S thin films on TCO (SnO₂:F) with enhanced photocatalytic activities

Single-source mediated facile electrosynthesis of p-Cu₂S thin films on TCO (SnO₂:F) with enhanced photocatalytic activities

Metal Sulfide Nanoparticles: Precursor Chemistry

Copper-bottomed: electrochemically active bacteria exploit conductive sulphide networks for enhanced electrogeneity

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Electrochemical synthesis of copper sulfide nanoparticles

Cited by 17 publications

References 38 publications

Single-source mediated facile electrosynthesis of p-Cu2S thin films on TCO (SnO2:F) with enhanced photocatalytic activities

Single-source mediated facile electrosynthesis of p-Cu2S thin films on TCO (SnO2:F) with enhanced photocatalytic activities

Metal Sulfide Nanoparticles: Precursor Chemistry

Copper-bottomed: electrochemically active bacteria exploit conductive sulphide networks for enhanced electrogeneity

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Single-source mediated facile electrosynthesis of p-Cu₂S thin films on TCO (SnO₂:F) with enhanced photocatalytic activities

Single-source mediated facile electrosynthesis of p-Cu₂S thin films on TCO (SnO₂:F) with enhanced photocatalytic activities