sulfurization and sulfur processing
sulfurization and sulfur processing
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sulfurization and sulfur processing

Sulfurization - an overview ScienceDirect Topics

2010-3-11  Sulfurization is a crucial processing step to convert stacked precursors to the single-phase CIGS and CZTS thin films. Sulfurization time, temperature, pressure, source of sulfur, thickness of precursor layers, their content and sequence have a significant impact on the properties of thin films [90].

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The effect of sulfurization process on component Coil ...

2021-9-6  Anti-sulfur methods. To prevent the occurrence of sulfurization, manufacturers have developed anti-sulfur technologies for components. There are generally two methods. The first is to use a layer of sulfur-resistant material to cover the electrode layer and avoid contacting the hydrogen sulfide.

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Optimization of Sulfurization Process of Cobalt Sulfide ...

Benefiting from the protection of catalytic active sites by sulfur atoms, the stability and alcohol-tolerance of the S-Co-N/C catalyst can be significantly improved. In order to fully understand the effect of the sulfurization process on the properties of the material, zeolite imidazole frameworks (ZIF)-8, and ZIF-67 are used as precursors to ...

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Selenization/sulfurization (SAS) FirstNano®

Selenization and/or sulfurization (SAS) are the processes whereby a surface of a material is exposed to a selenium and/or sulfur containing atmosphere at high temperature. The surface reacts and forms a new compound incorporating either selenium or sulfur or a

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Anti-sulfur Technology - Transcend Information, Inc.

Sulfurization Process and Effect What is sulfurization, and what does it do to sensitive electronic parts? Sulfurization, here referring to metallic sulfurization, is the chemical process when sulfur reacts with air or water, produces hydrogen sulfide. When this is absorbed by metallic surfaces, a chemical reaction begins, creating a sulfide.

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A comprehensive study on Cu2SnS3 prepared by

2020-8-1  The sulfurization process was performed in a tubular furnace. Four 13 × 13 mm 2 SLG/Mo/Cu–Sn samples were put in a circular dish with sulfur powder centered between the substrates. The sulfurization tube was vacuumed at the beginning of the process and flushed with N 2 several times before starting the sulfurization process. The sulfurization process was performed at 10 °C/min

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How can you do a sulfurization process safely?

Sulfurization was successfully done at low cost and safe method. A stainless steel box was used for this purpose. 30 g of crystalline, pure sulfur powder was placed on

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Desulfurization of Coal - EOLSS

2017-1-16  Sulfur in coal exists in inorganic and organic forms, the former being mostly pyritic sulfur. Total sulfur contents in major coalfields are in the range of roughly 0.5–10 wt%. In coal combustion, to generate electric power and process heat, the sulfur is emitted as SO2, which is seen as one of the main causes of acid rain. This effect has led ...

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Improved CIGS thin-film solar cells by surface ...

2001-3-1  Surface sulfurization of Cu(In,Ga)Se 2 (CIGS) thin films was carried out using two alternative techniques that do not utilize toxic H 2 S gas; a sequential evaporation of In 2 S 3 after CIGS deposition and the annealing of CIGS thin films in sulfur vapor. A Cu(In,Ga) (S,Se) 2 thin layer was grown on the surface of the CIGS thin film after sulfurization using In 2 S 3, whereas this layer was ...

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SULFURIZATION AND FLOTATION. Assoc. Prof. Dr. Willie

Sulfurization of Ni/Cu slag followed by flotation has great potential in the recovery of base metals from reverberatory smelter slag. Waste material form hydrometallurgical plants can be economically used in pyrometallurgical plants as sulfurization agents leading to cheaper recovery of base metals lost to the slags through oxidation process. 0 ...

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Anti-sulfur Technology - Transcend Information, Inc.

Sulfurization Process and Effect What is sulfurization, and what does it do to sensitive electronic parts? Sulfurization, here referring to metallic sulfurization, is the chemical process when sulfur reacts with air or water, produces hydrogen sulfide. When this is absorbed by metallic surfaces, a chemical reaction begins, creating a sulfide.

More

Selenization/sulfurization (SAS) FirstNano®

Selenization and/or sulfurization (SAS) are the processes whereby a surface of a material is exposed to a selenium and/or sulfur containing atmosphere at high temperature. The surface reacts and forms a new compound incorporating either selenium or sulfur or a

More

How can you do a sulfurization process safely?

Sulfurization was successfully done at low cost and safe method. A stainless steel box was used for this purpose. 30 g of crystalline, pure sulfur powder was placed on porcelene jar which then ...

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Sulfurization of a carbon surface for vapor phase

2019-12-27  sulfurization process does not change the pore structure of the original sorbent significantly. Following the first part of the study on sulfur content and distribution [20], this part of the study investigated the effect of temperature and sulfurization protocols on sulfur forms and mercury uptake. 2. Experimental details 2.1.

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Synthesis of Y2O2S:Eu3+ luminescent nanobelts via ...

2012-8-14  Y2O2S:Eu3+ nanobelts were successfully prepared via electrospinning method and sulfurization process using the as-prepared Y2O3:Eu3+ nanobelts and sulfur powders as sulfur source by a double-crucible method for the first time. X-ray diffraction analysis indicated that the Y2O2S:Eu3+ nanobelts were pure hexagonal in structure with space group P $$ \\bar{3} $$ m1. Scanning electron

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Effects of sulfurization of grinding wheels on internal ...

2016-7-20  sulfurization process was begun. In room temperature sulfur is a solid body. Its melting temperature is approximately 115°C. In order to introduce sulfur into the whole grinding wheel volume, the sulfurization process was performed in the temperature range of 120°C to 160°C, in which sulfur

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Impact of sulfurization parameters on properties of CZTS ...

2020-10-9  The effects of the post-sulfurization treatment, reaction temperature (500, 525, 550 and 575 °C) and sulfurization time (60, 90, 120 and 150 s) on the properties of CZTS thin films were analyzed. The optimization of reaction temperature for 60 s dwell time was examined by annealing the precursor films with/without sulfur atmosphere.

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Comparison of Sulfur Incorporation into CuInSe2 and ...

2020-6-30  sequential absorber deposition process such as sulfurization-after-selenization[3] or annealing of stacked-elemental layers in S-containing atmosphere.[5] In both meth-ods, sulfur is added during the baseline processing, which is claimed to enable the formation of a CIGSSe alloy at the absorber surface. The main aim of a surface SSSe

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SULFURIZATION AND FLOTATION. Assoc. Prof. Dr. Willie

Sulfurization of Ni/Cu slag followed by flotation has great potential in the recovery of base metals from reverberatory smelter slag. Waste material form hydrometallurgical plants can be economically used in pyrometallurgical plants as sulfurization agents leading to cheaper recovery of base metals lost to the slags through oxidation process. 0 ...

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Steep sulfur gradient in CZTSSe solar cells by H2S ...

Steep sulfur gradient in CZTSSe solar cells by H2S- assisted rapid surface sulfurization† Teoman Taskesen, *a Devendra Pareek, a Dirk Hauschild, bcd Alan Haertel,bc Lothar Weinhardt, bcd Wanli Yang, e Timo Pfeiffelmann,a David Nowak,a Clemens Heske bcd and Levent G¨utay a Sulfur/selenium grading is a widely used optimization strategy in kesterite thin-film solar cells to obtain

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(PDF) MoS2 thin films prepared by sulfurization

Sulfurization of a Mo layer is one of the most used methods for preparation of thin MoS2 films. In the method, a sulfur powder and Mo covered substrate are placed in different positions within a ...

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Preparation and processing of porous sulfur foams having ...

Preparation and processing of porous sulfur foams having low thermal conductivity†. Vijay S. Wadi, Kishore K. Jena, Shahrukh Z. Khawaja, Vengatesan Muthukumarswamy Ranagraj and Saeed M. Alhassan * Department of Chemical Engineering, Khalifa University of Science and Technology, P. O. Box 127788, Abu Dhabi, United Arab Emirates. E-mail: [email protected]

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Effects of sulfurization of grinding wheels on internal ...

2016-7-20  sulfurization process was begun. In room temperature sulfur is a solid body. Its melting temperature is approximately 115°C. In order to introduce sulfur into the whole grinding wheel volume, the sulfurization process was performed in the temperature range of 120°C to 160°C, in which sulfur

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(PDF) Effect of sulfur precursors on structural, optical ...

The sulfur amount used during the sulfurization process showed a vital impact on film formation. Using a small amount of sulfur produced a partially sulfurized film that exhibited a poor ...

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Frontiers Sulfur Fumigation Processing of Traditional ...

Majority of traditional Chinese medicine (TCM) herbs need to undergo post-harvesting processing to convert raw material into the form readily used for prescription. In general, processing procedures are either according to China Pharmacopeia or based on traditional methods. Recently sulfur

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Comparison of Sulfur Incorporation into CuInSe2 and ...

2020-6-30  sequential absorber deposition process such as sulfurization-after-selenization[3] or annealing of stacked-elemental layers in S-containing atmosphere.[5] In both meth-ods, sulfur is added during the baseline processing, which is claimed to enable the formation of a CIGSSe alloy at the absorber surface. The main aim of a surface SSSe

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Controllable synthesis of sulfurized polyacrylonitrile ...

2021-2-24  spinning and sulfurization process. Firstly, the PAN/CNT precursor films were made from the homogeneous solution containing PAN, DMF and CNTs via electrospinning technique. Subsequently, elemental sulfur was heated together with PAN/CNT films under nitrogen atmosphere at different temperatures for 3 h, respectively. The morphological structure

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Effect of sulfur precursors on structural, optical, and ...

2021-9-25  Cu2SnS3 (CTS) is an earth-abundant, non-toxic, and eco-friendly semiconductor that makes it promising for various potential optoelectronic applications, including photovoltaics and photodetectors. In this study, the synthesis of CTS nanoparticles by the solvothermal method using different sulfur precursors is reported. The influences of sulfur precursors on the structural, optical, and ...

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Carbide-free one-zone sulfurization method grows thin

2019-2-14  In our experiments, a simplified sulfurization process was used. The substrate and the sulfur powder were placed at the same position in the center of a one-zone furnace 39. This enables ...

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Promoting polysulfides redox conversion by sulfur

2021-8-29  Herein, sulfur-deficient zinc sulfide (ZnS 1 −x) hollow polyhedrons are synthesized as the multifunctional sulfur host material via the sulfurization and high-temperature annealing method. The unique hollow structure could supply adequate void spaces for sulfur loading and alleviate volumetric expansion of sulfur upon the cycling process.

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