N, N-dimethyl formamide (99.8%), DMF, cobalt acetate tetrahydrate (99.99%), terephthalic acid (98%), titanium (IV) butoxide (97%), and anhydrous ethanol (98%) were purchased from Sigma Aldrich. All the reagents were used intrinsically without additional purification, and deionized water was used for all the synthesis processes. All the solvothermal reaction was carried out in a 100mL autoclave provided by Amar Equipments Pvt. Ltd.
Cobalt acetate tetrahydrate
Manufactured by Merck Group
Sourced in United States, Belgium
Cobalt acetate tetrahydrate is a chemical compound with the formula Co(CH3COO)2·4H2O. It is a pink crystalline solid that is used as a source of cobalt in various applications, including in the production of pigments, catalysts, and other chemical products.
Automatically generated - may contain errors
Lab products found in correlation
Nickel acetate tetrahydrate, by Merck Group (2 mentions)
Zinc acetate dihydrate, by Merck Group (2 mentions)
Terephthalic acid, by Merck Group (1 mentions)
Anhydrous ethanol, by Merck Group (1 mentions)
N n dimethylformamide (dmf), by Merck Group (1 mentions)
N dimethylformamide, by Merck Group (1 mentions)
Titanium 4 butoxide, by Merck Group (1 mentions)
Lithium acetate dihydrate, by Merck Group (1 mentions)
Manganese acetate tetrahydrate, by Merck Group (1 mentions)
2 methylimidazole, by Merck Group (1 mentions)
Magnesium nitrate hexahydrate, by Merck Group (1 mentions)
Copper acetate hydrate, by Merck Group (1 mentions)
Methanol, by Thermo Fisher Scientific (1 mentions)
Sodium hydroxide (naoh), by Merck Group (1 mentions)
Zinc acetate dehydrate, by Merck Group (1 mentions)
Bismuth nitrate pentahydrate, by Merck Group (1 mentions)
Bisphenol a bpa, by Merck Group (1 mentions)
1 4 benzoquinone bq, by Merck Group (1 mentions)
Fluorine doped tin oxide fto glass, by Merck Group (1 mentions)
Potassium chloride (kcl), by Merck Group (1 mentions)
13 protocols using cobalt acetate tetrahydrate
1
Solvothermal Synthesis of Metal-Organic Frameworks
2
Synthesis and Characterization of ZrO2-Coated NMC Cathode Material
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All the materials were synthesized using the sol–gel synthesis method. Firstly, lithium acetate dihydrate, manganese acetate tetrahydrate, nickel acetate tetrahydrate, and cobalt acetate tetrahydrate (Sigma Aldrich) were dissolved in 100 ml of deionized water in the molar ratio of 1.2 : 0.16 : 0.56 : 0.08 respectively. Later, the citric acid (metal ions : citric acid 1 : 1) was added to the precursor solution as a chelating agent. The precursor solution was kept at 70 °C under continuous stirring until completely dried. The dried precursor mixture was then shifted to the conventional oven at 120 °C for 12 hours to remove the traces of water. The precursor mixture was then ground and homogeneously mixed using agate mortar. Finally, the precursor mixture was calcinated at 900 °C for 12 hours in a muffle furnace to synthesize pristine Li1.2Ni0.16Mn0.56Co0.08O2 (NMC) cathode material. For ZrO2 coated Li1.2Ni0.16Mn0.56Co0.08O2 (NMC), the precursor mixture was decomposed at 450 °C for 6 hours in the air. Then, ZrO2 (where ZrO2 = 1.0, 1.5 & 2.0 wt%) was added to decomposed precursor material and ball milled for 24 hours using ZrO2 grinding media. Finally, the ball-milled materials were sintered at 900 °C for 12 hours in a muffle furnace to synthesized ZrO2 coated Li1.2Ni0.16Mn0.56Co0.08O2 materials.
3
Synthesis of ZIF-Derived Carbon Materials
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To synthesize ZIF-derived carbon, specific atomic ratios (Zn:Co = 1:0 for ZIF-C and 1:2 for Co-ZIF-C) of the zinc acetate dihydrate (2-x g, Sigma-Aldrich) and/or cobalt acetate tetrahydrate (x g, Sigma-Aldrich) were dissolved in water and stirred for 10 min in a 2-methylimidazole (10 g, Sigma-Aldrich) solution. Each solution was maintained at room temperature for 24 h. The precipitates were then collected by filtering and drying in an oven at 80 ℃ for 24 h. The obtained powder was heat-treated at 1000 ℃ for 6 h under argon gas with a ramping rate of 5 ℃ min−1. Afterwards, the two powders were kept in 1 M hydrogen chloride (HCl) solution (100 ml) for 24 h each, and then washed several times in a large amount of water. Subsequently, the ZIF-derived carbon was finally obtained after drying (Fig. 1 a) [22 (link)].![]()
4
Synthesis of Metal-Organic Frameworks
5
Synthesis of Perovskite-based Photocatalysts
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Bismuth nitrate pentahydrate (Bi(NO3)3.5H2O, 99%), Cobalt acetate tetrahydrate (Co(CH3COO)2.4H2O), Potassium chloride (KCl, 99%), Ethylene glycol (EG) ((CH2OH)2, 99%), Dimethylformamide (DMF) (C3H7NO), Rhodamine-B (RhB) (C22H24N2O8, 99%), Bisphenol-A (BPA) (C15H16O2, 99%), 1,4-benzoquinone (BQ) (C6H4O2, 99%), and Fluorine doped tin oxide (FTO) glass were purchased from Sigma Aldrich Inc. (St. Louis, MO, USA). Ethanol (EtOH) (C2H5OH, 99%) and Isopropyl alcohol (IPA) (C3H8O, 99%) were purchased from DAEJUN Co., Ltd (Daejun, Korea). All reagents were used without any further purification.
6
Synthesis of CEPPA Compound
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2-Carboxyethylphenylphosphinic acid (CEPPA) was purchased from Carbosynth Limited. Cobalt acetate tetrahydrate and calcium acetate monohydrate were purchased from Sigma-Aldrich. All chemicals were obtained from commercial sources and used without purification.
7
Synthesis and Electrochemical Characterization of Carbon Nanotube-based Materials
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Multiwalled carbon nanotubes, cobalt acetate tetrahydrate [Co(CH3COO)2·4H2O], potassium permanganate (KMnO4), hydrochloric acid (HCl), sulfuric acid (H2SO4), phosphoric acid (H3PO4), ammonia (NH3, 30%), absolute ethanol (C2H5OH) and hydrogen peroxide (H2O2), were acquired from Sigma-Aldrich chemicals, and all electrochemical studies were carried out by employing double distilled water.
8
Synthesis of CNT/PAN-CoSx Composite
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Cobalt acetate tetrahydrate (0.774 g) (Sigma-Aldrich) was dissolved in 100 ml of ethanol, followed by the addition of 100 mg of the as-prepared CNT/PAN tube-in-fiber composite into the solution. After sonication for 20 min, the above mixture was heated to 80°C in an oil bath for several hours to grow Co acetate hydroxide onto the CNT/PAN composite. The obtained CNT/PAN-Co acetate hydroxide composite and 0.13 g of TAA (Sigma-Aldrich) were dispersed in 40 ml of ethanol, transferred to a 100-ml Teflon-lined stainless steel autoclave, and then heated to 120°C for 12 hours to obtain the CNT/PAN-CoSx composite.
9
Synthesis of Manganese and Cobalt-Doped PAN
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Polyacrylonitrile (PAN, MW 150 000),
manganese acetate dihydrate (Mn(Ac2)·2H2O), and cobalt acetate tetra hydrate (Co(Ac2)·4H2O) were purchased from Sigma-Aldrich. N,N-Dimethylformamide (DMF) was procured from Alfa Aesar.
manganese acetate dihydrate (Mn(Ac2)·2H2O), and cobalt acetate tetra hydrate (Co(Ac2)·4H2O) were purchased from Sigma-Aldrich. N,N-Dimethylformamide (DMF) was procured from Alfa Aesar.
10
Bimetallic ZIFs Grown on CNTs
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In a manner similar to our previous works [12 (link),41 (link)], bimetallic ZIFs (ZnxCoy) with various Zn/Co ratios were grown on CNTs via hydrothermal synthesis, where x/y was chosen to be 1/4, 1/1, and 4/1, respectively (corresponding to 20%, 50%, and 80% of zinc ions in the metal precursors). Firstly, metal solutions were prepared by dissolving stoichiometric amounts of cobalt acetate tetrahydrate (Co(CH3COO)2⋅4H2O, Sigma-Aldrich, 98%) and zinc acetate dihydrate (Zn(CH3COO)2·2H2O, Sigma-Aldrich, 99%) in methanol (60 mL). Meanwhile, 59 mg of CNTs with diameters of 15–30 nm were dispersed in methanol (60 mL) containing 2.6 g of 2-methylimidazole (C4H6N2) by horn sonication for 30 min. After that, the metal solution was poured into the as-prepared CNT-containing solution. The mixture was continuously stirred for 30 min and then poured into a 200 mL Teflon-lined autoclave for heating at 90 °C for 6 h. After the temperature naturally dropped down to room temperature, the ZnxCoy/CNT precipitate was collected by vacuum filtration, washed with methanol, and then dried at 80 °C. After carbonization at 900 °C for 6 h under Ar atmosphere, the ZnxCoy–C/CNT composite was obtained and further chemically etched with 1 M of H2SO4 solution before use.
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