The preparation of the Ru(cod)(cot) was based on a method described by Pertici and Vitulli.11 12 g of Zn powder (Sigma Aldrich) was added to approximately 10 mL of degassed MeOH and 25 mL of degassed cod (Sigma Aldrich) in a three-necked round bottom flask. This solution was kept under an inert atmosphere and sonicated at 70 °C. Approximately 1 g of RuCl3 (Sigma Aldrich) was then dissolved in approximately 25 mL degassed MeOH to make a dark black/brown solution. This solution was transferred to the cod-containing solution dropwise over twenty minutes while sonicating. The solution was allowed to sonicate for an additional 2 hours then filtered using Schlenk line techniques to remove the solid and the solvent evaporated overnight. The resulting brown residue was extracted with pentane and filtered in an air-free basic alumina column and the yellow band was collected. The pentane was evaporated under vacuum and the identity of the resulting yellow powder was confirmed to be Ru(cod(cot) by 1H NMR spectroscopy.
Zn powder
Manufactured by Merck Group
Sourced in United States, Germany
Zn powder is a fine metallic powder made from the element zinc. It has a gray-white appearance and is commonly used as a raw material in various industrial and scientific applications.
Automatically generated - may contain errors
Lab products found in correlation
Rucl3, by Merck Group (1 mentions)
Hoc coona ch2coona 2 2h2o, by Merck Group (1 mentions)
Ethanol etoh, by Merck Group (1 mentions)
Graphite powder, by Merck Group (1 mentions)
Nano3, by Merck Group (1 mentions)
H2so4, by Merck Group (1 mentions)
Kmno4, by Merck Group (1 mentions)
Hydrochloric acid (hcl), by Merck Group (1 mentions)
Nh4oh, by Merck Group (1 mentions)
Deuterium chloride, by Merck Group (1 mentions)
Deuterium oxide, by Merck Group (1 mentions)
Aluminium potassium sulphate, by Merck Group (1 mentions)
Sulphanilic acid, by Merck Group (1 mentions)
Cadmium sulfate, by Merck Group (1 mentions)
1 naphthol, by Merck Group (1 mentions)
Folin ciocalteu, by Merck Group (1 mentions)
Gallic acid, by Merck Group (1 mentions)
Glacial acetic acid, by Merck Group (1 mentions)
Potassium permanganate, by Merck Group (1 mentions)
6 protocols using zn powder
1
Synthesis of Ru(cod)(cot) Organometallic Complex
2
Synthesis of ZnO Nanoparticles
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Zinc acetate dihydrate (Zn(CH3COO)2 × 2H2O, Zn(Ac)2, Sigma Aldrich), sodium hydroxide (NaOH, Stanlab), methanol (MeOH, Sigma Aldrich), ethanol (EtOH, Sigma Aldrich), tri-sodium citrate dihydrate (HOC(COONa)(CH2COONa)2 × 2H2O, Sigma Aldrich), Zn powder (Sigma Aldrich) were all of the analytical grades and used as starting materials.
3
Synthesis of Graphene-Based Nanomaterials
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Graphite powder (Purity 99%), NaNO3, KMnO4, H2O2, NH4OH, HCl, BaCl2, NaOH, Zn powder, Cu(CO2CH3)2•H2O, Cu(NO3)2•H2O, 3-aminopropyltrimethoxysilane (APTMS) DMF, and H2SO4 were supplied by Merck Sigma-Aldrich with analytical grade.
4
Graphite Microparticle Synthesis and Analysis
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We used pure graphite microparticles (2-15 μm, 99.9995%, from Alfa Aesar). Sulfuric acid (98%), nitric acid (68%), fuming nitric acid (>98%), potassium chlorate (99%), potassium permanganate (99.5%), sodium nitrate (99.5%), hydrogen peroxide (30%), hydrochloric acid (37%), silver nitrate (99.5%), barium nitrate (99.5%) and N,N-dimethylformamide (DMF) were obtained from Penta, Czech Republic. Deuterium chloride (35% in D 2 O, >98% D), deuterium oxide (99.9% D 2 O) and Zn powder were obtained from Sigma-Aldrich, Czech Republic.
5
G/TiO2 Composite Synthesis
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Preparation of G/TiO 2 composites was applied by preparing each of the major materials. The TiO 2 -P25 powder was sieved using a 200 mesh sieve and inserted into a porcelain cup. Then, it was calcined at a temperature of 500℃ for 3 hours to obtain the crystalline phase. Subsequently, the preparation of graphene is synthesized from graphite oxide by Hummer s method, as explained in our previous studies 31) (link) . In the typical process, 40 mg of GO were dissolved in 40 mL of deionized water via stirring and later ultrasonicated at a frequency of 53 kHz for 2 h. After that, 1.6 g of Zn powder (Sigma-Aldrich, USA, 99.995％) and 10 mL of 37％ HCl (Sigma-Aldrich USA) , used as reducing agents, were then added into the solution. The solution was transferred into an autoclave for a hydrothermal reaction process at 180℃ for 1 h. Next, the reaction product was dried at 110℃ for 24 h.
6
Colorimetric Detection Assay Development
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Aluminium potassium sulphate, glacial acetic acid, sulphanilic acid, 1-naphthol, cadmium sulfate, Zn powder, Potassium permanganate, aqueous methanol, Folin-Ciocalteu and gallic acid were obtained from Sigma (Germany). Other chemicals were purchased from Al-Gomhoria company, Egypt.
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