Selenium powder

Manufactured by Strem Chemicals

Selenium powder is a chemical element with the symbol Se and atomic number 34. It is a non-metallic, semi-conductive element that is found naturally in the Earth's crust. Selenium powder is used in various industrial and research applications.

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Lab products found in correlation

Oleylamine, by Merck Group (6 mentions) Octadecene, by Merck Group (5 mentions) Cadmium oxide, by Strem Chemicals (4 mentions) Trioctylphosphine oxide, by Strem Chemicals (3 mentions) Trioctylphosphine, by Strem Chemicals (3 mentions) Toluene, by Merck Group (3 mentions) Copper 2 acetylacetonate, by Merck Group (3 mentions) Methanol, by Carlo Erba (3 mentions) Chloroform, by Carlo Erba (3 mentions) Oleic acid, by Merck Group (3 mentions) Copper 1 chloride, by Strem Chemicals (2 mentions) Tetrakis acetonitrile copper 1 hexafluorophosphate, by Merck Group (2 mentions) Sulfur powder, by Strem Chemicals (2 mentions) Silver chloride, by Strem Chemicals (2 mentions) Tri n octylphosphine, by Strem Chemicals (2 mentions) Tri n octylphosphine oxide, by Merck Group (2 mentions) Tetrahydrofuran, by Merck Group (2 mentions) Gold 3 chloride trihydrate, by Merck Group (2 mentions) Tetrachloroethylene, by Merck Group (2 mentions) Methanol, by Merck Group (2 mentions)

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Selenium (6 citations)

11 protocols using selenium powder

Synthesis of Colloidal Nanocrystals

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Cadmium oxide (CdO, 99.99%), copper(I) chloride
(CuCl, 99.999%), trioctylphosphine oxide (TOPO, 99%), trioctylphosphine
(TOP, 97%), and selenium powder (Se, 99.99%) were purchased from Strem
Chemicals. Cadmium chloride (CdCl₂, 99.99%), iodine (I₂, 99.99%), iron(III) chloride (FeCl₃, 98%), oleylamine
(70%), tetrakis(acetonitrile)copper(I) hexafluorophosphate, and sulfur
powder (S, 99.9%) were purchased from Sigma-Aldrich. Copper(II) chloride
(CuCl₂, 99%) was purchased from Alfa Aesar. Octadecylphosphonic
acid (ODPA) and hexylphosphonic acid (HPA) were purchased from Polycarbon
Industries. Cerium(IV) ammonium nitrate (>98.5%), nitric acid (HNO₃, 67−69%), anhydrous toluene and methanol were purchased
from Carlo Erba reagents.

Miszta K., Brescia R., Prato M., Bertoni G., Marras S., Xie Y., Ghosh S., Kim M.R, & Manna L. (2014). Hollow and Concave Nanoparticles via Preferential Oxidation of the Core in Colloidal Core/Shell Nanocrystals. Journal of the American Chemical Society, 136(25), 9061-9069.

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Synthesis of Nanomaterials Using Common Reagents

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Sulfur
powder (S, 99.99%), silver chloride
(AgCl, 99.9%), selenium powder (Se, 99.9%), and tri-n-octylphosphine
(TOP, 97%) were obtained from Strem Chemicals. Silver nitrate (AgNO₃, 99%), gold(III) chloride trihydrate (HAuCl₄·3H₂O, ≥99.9%), oleylamine (OLAm, 70%), tri-n-octylphosphine
oxide (TOPO, 99%), sodium borohydride (NaBH₄, 98%), tetrahydrofuran
(THF, 99%), octadecene (ODE, 90%), and toluene (99.9%), 11-mercaptoundecanoic
acid (MUA, 95%), and sodium citrate tribasic dihydrate were purchased
from Sigma-Aldrich. Ethanol (EtOH, 96%) and acetone (99.5%) were obtained
from Panreac.

Lin M., Montana G., Blanco J., Yedra L., van Gog H., van Huis M.A., López-Haro M., Calvino J.J., Estradé S., Peiró F, & Figuerola A. (2022). Spontaneous Hetero-attachment of Single-Component Colloidal Precursors for the Synthesis of Asymmetric Au–Ag2X (X = S, Se) Heterodimers. Chemistry of Materials, 34(24), 10849-10860.

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Synthesis of Semiconductor Nanocrystals

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Cadmium oxide (CdO, 99.5%), trioctylphosphine
oxide (99%), trioctylphosphine (TOP, 97%), selenium powder (Se, 99.99%),
and lead(II) acetate trihydrate (Pb(CH₃CO₂)₂·3H₂O, 99.999%) were purchased from Strem
Chemicals. Octadecylphosphonic acid (99%) was purchased from Polycarbon
Industries. Copper(II) acetylacetonate (Cu(acac)₂, 97%),
hexadecylamine (98%), tetrakis(acetonitrile)copper(I) hexafluorophosphate
(99.99%), octadecene (technical grade, 90%), 1-dodecanethiol (≥98%),
oleylamine (70%), tetrachloroethylene (≥99%), anhydrous chloroform,
methanol, toluene, and tetrahydrofuran were purchased from Sigma-Aldrich.
All chemicals were used without any further purification.

Gariano G., Lesnyak V., Brescia R., Bertoni G., Dang Z., Gaspari R., De Trizio L, & Manna L. (2017). Role of the Crystal Structure in Cation Exchange Reactions Involving Colloidal Cu2Se Nanocrystals. Journal of the American Chemical Society, 139(28), 9583-9590.

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Colloidal Semiconductor Nanocrystal Synthesis

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Cadmium
nitrate tetrahydrate (99.997%), sodium myristate (99%), cadmium(II)
acetate (Cd(OAc)₂; 99.995%), cadmium acetate dihydrate
(Cd(OAc)₂·2H₂O), octadecene (ODE; 90%),
oleic acid (90%), trioctylphosphine (TOP; 90%), propionic acid (99.5%)
methanol (99.9%), and hexane (95%) were purchased from Sigma-Aldrich.
Cadmium oxide (99.999%) sulfur (S; 99.9%), selenium powder (Se; 99.99%),
and tellurium (Te; 99.99%) were purchased from Strem Chemicals.

Khan A.H., Bertrand G.H., Teitelboim A., Sekhar M. C., Polovitsyn A., Brescia R., Planelles J., Climente J.I., Oron D, & Moreels I. (2020). CdSe/CdS/CdTe Core/Barrier/Crown Nanoplatelets: Synthesis, Optoelectronic Properties, and Multiphoton Fluorescence Upconversion. ACS Nano, 14(4), 4206-4215.

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Synthesis of Chalcogenide Nanocrystals

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Antimony acetate (Sb(OAc)₃, 99.99% metal basis, Aldrich), bismuth acetate (Bi(OAc)₃, 99.999% metal basis, Aldrich), selenium powder (99.99% Strem Chemicals), tellurium powder (99.997% (trace metals basis), Alfa Aesar), Na₂S nonahydrate (99,99%, Aldrich), Oleic acid (90% technical grade, Aldrich), Trioctylphosphine (TOP 380, 98%, Cytec), octadecene (ODE, 90% technical grade, Aldrich), hexane (95% RPE-ACS, Carlo Erba), ethanol (anhydrous 99.9%, Carlo Erba), N-methyl formamide (NMFA, 99%, Alfa Aesar.)

Mir W.J., Assouline A., Livache C., Martinez B., Goubet N., Xu X.Z., Patriarche G., Ithurria S., Aubin H, & Lhuillier E. (2017). Electronic properties of (Sb;Bi)2Te3 colloidal heterostructured nanoplates down to the single particle level. Scientific Reports, 7, 9647.

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Synthesis of Metal Chalcogenide Nanoparticles

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Copper(II) acetylacetonate (Cu(acac)₂, 97%), copper(I)
chloride (CuCl, 99.99%), oleylamine (OLAM,
>70%), octadecene (ODE, 90%), tri-n-octylphosphine
(TOP, 97%), trioctylphosphine oxide (TOPO, 99%), lithium bis(trimethylsilyl)amide
(LiN(SiMe₃)₂, 97%), N,N-dimethylethylenediamine (NND, ≥98.0%), mercury(II)
chloride (HgCl₂, ≥99.5%), cadmium iodide (CdI₂, 99%), lead(II) acetylacetonate (Pb(acac)₂, ≥95%)
and tin(II) chloride (SnCl₂, 98%) were purchased from Sigma-Aldrich,
tellurium powder (99.999%) and selenium powder (99.99%) from Strem
Chemicals, ethanol (anhydrous, ≥99.8%), methanol (anhydrous,
≥99.8%), toluene (anhydrous, ≥99%), and chloroform (anhydrous,
≥99%) from Carlo Erba reagents. All chemicals were used as
received without further purification, and all reactions were carried
out under nitrogen using standard air-free techniques.

Tu R., Xie Y., Bertoni G., Lak A., Gaspari R., Rapallo A., Cavalli A., Trizio L.D, & Manna L. (2016). Influence of the Ion Coordination Number on Cation Exchange Reactions with Copper Telluride Nanocrystals. Journal of the American Chemical Society, 138(22), 7082-7090.

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Synthesis of Copper-Platinum-Selenium Nanostructures

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Copper(I) chloride (CuCl, 99.999%-Cu), platinum(II) acetyl-acetonate (Pt(acac) 2 , 98%) and selenium powder (Se, 99.99%) were obtained from Strem Chemicals. Oleylamine (OLAm, 70%), 1-octadecene (ODE, 90%), oleic acid (OLAc, ≥99%), 2-propanol (≥99.9%), toluene (99.9%) and ethanol (HPLC, 99.999%) were purchased from Sigma-Aldrich. Melamine (99%) was purchased from Alfa Aesar. All the reagents and solvents were used without further purification, except for the ODE and OLAm which had been previously degassed under vacuum for 3 h at 120 °C.

Casu A., Dalmases M., Lin M., Wang Y., Homs N., Ramírez de la Piscina P., Llorca J., Figuerola A, & Falqui A. (2020). Monitoring the insertion of Pt into Cu_2-xSe nanocrystals: a combined structural and chemical approach for the analysis of new ternary phases. Nanoscale, 12(31).

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Synthesis of Colloidal Nanocrystals

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Copper(II) acetylacetonate (Cu(acac)₂, 97%), ZnCl₂ (99.999%), Sn(acac)₂Cl₂ (98%), DDT (≥98%), OlAm (70%), 1-octadecene (ODE, 90%), tetrabutylammonium perchlorate (TBAP, ≥98%), acetonitrile (99.8%), tetrachloroethylene (TCE, ≥99%), acetone (≥99.5%), and dichloromethane (≥99.8%) were purchased from Sigma-Aldrich; selenium powder (Se, 99.99%), TOP (97%) were from STREM chemicals; chloroform (anhydrous, 99.95%), methanol (anhydrous, 99.9%) were from Carlo Erba reagents. All chemicals were used as received without further purification.

Lesnyak V., George C., Genovese A., Prato M., Casu A., Ayyappan S., Scarpellini A, & Manna L. (2014). Alloyed Copper Chalcogenide Nanoplatelets via Partial Cation Exchange Reactions. ACS Nano, 8(8), 8407-8418.

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CdSe/CdS Nanorods and Gold Nanoparticles Synthesis

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For CdSe/CdS NRds: Cadmium oxide (CdO) (Sigma Aldrich 99.99%), sulfur powder (S, Afla Aesar, 99.5%), selenium powder (Strem Chemicals, 99.99%), Trioctylphosphine oxide (TOPO 99%), trioctylphosphine (TOP, Sigma-Aldrich, 97%), Octadecylphosphonic acid (ODPA, TCI 99%), hexylphosphonic acid -(HPA, TCI 99%), Chloroform (Carlo Erba), ethanol absolute anhydrous (Carlo Erba, 99.9%), methanol (Carlo Erba, 99.8%), acetone (Carlo Erba, 99.8%), n-hexane (Carlo Erba), n-octane (SDS, 99%), toluene (Carlo Erba, 99.3%) and n-octane (SDS, 99%). For Gold NPs: Chlorotriphenylphosphine gold ÄšI) and tertbutylamine borane (STEM chemicals), Dodecanethiol (Sigma-Aldrich), toluene ( Riedel de Haen,98%) and ethanol (Prolabo,99.8%). All reagents were used as received without further purification.

Jeridi H., Niyonzima J.D., Sakr C., Missaoui A., Shahini S., Vlad A., Coati A., Goubet N., Royer S., Vickridge I., Goldmann M., Constantin D., Garreau Y., Babonneau D., Croset B., Gallas B., Lhuillier E, & Lacaze E. (2022). Unique orientation of 1D and 2D nanoparticle assemblies confined in smectic topological defects. Soft matter, 18(25).

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Synthesis of Colloidal Quantum Dots

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trioctylphosphine oxide (TOPO, 99%), trioctylphosphine (TOP, 97%), cadmium oxide (CdO, 99.999%), sulfur powder (99%), and selenium powder (99.99%) were purchased from Strem Chemicals. cadmium oxide (CdO, 99.5%) was purchased from Sigma-Aldrich. Octadecylphosphonic acid (ODPA, 99%) and hexylphosphonic acid (HPA, 99%) were purchased from Polycarbon Industries.

Angeloni I., Raja W., Polovitsyn A., De Donato F., Zaccaria R.P, & Moreels I. (2017). Band-edge oscillator strength of colloidal CdSe/CdS dot-in-rods: comparison of absorption and time-resolved fluorescence spectroscopy. Nanoscale, 9(14).

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