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15 protocols using aluminium nitrate nonahydrate

1

Synthesis of Nanocomposite Materials

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Nickel nitrate hexahydrate (Ni(NO3)2•6H2O, >99.999%), cobalt nitrate hexahydrate (Co(NO3)2•6H2O, >99.999%), aluminium nitrate nonahydrate (Al(NO3)3•9H2O, >99.997%), dimethyl sulfoxide anhydrous (C2H6OS, >99.9%), ethanol (C2H5OH, 99.9%), acetone (C3H6O, 99.5%), carbon black (>99.95%), ethylene glycol anhydrous (C2H6O2, >99.8%), polyvinylidene fluoride (PVDF), and urea (CH4N2O, >90%) were purchased from Sigma-Aldrich and used as received. Deionised water was used in the experiment and for the washing of the samples. Finally, HERMLE Z 36 HK centrifuge was used for washing purposes.
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2

Synthesis of Metal-Organic Frameworks

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All chemicals were supplied from Sigma Aldrich-Australia without further purification including aluminium nitrate nonahydrate (Al(NO3)3·9H2O, ACS reagent, ≥98%), trimesic acid (BTC); 1,3,5-benzenetricarboxylic acid (C9H6O6, 95%), calcium carbonate (CaCO3, ≥99.0%), nitric acid (HNO3, 72%), hydrochloric acid (HCl, 32%), absolute methanol (CH3OH, 99.8%) and absolute ethanol (C2H6O, 99.8%). Deionised water was supplied from the ultra-high pure water system. Teflon-line autoclave – 4744 Acid Digestion Bomb of 125 mL was supplied by John Morris Scientific Pty Ltd-Australia.
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3

Synthesis of Metal Nitrate Hydrates

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Magnesium nitrate hydrate (Mg(NO3)2·6H2O, >99.0%), Aluminium nitrate nonahydrate (Al(NO3)3·9H2O, >98%), stearic acid and zinc nitrate hexahydrate (Zn(NO3)2·6H2O, 99%) were purchased from Sigma-Aldrich. Sodium carbonate (Na2CO3, 99.6%) was purchased from Acros Organics. Nitric acid (HNO3, 70%) and Sodium hydroxide (NaOH) was purchased from Fisher Chemicals.
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4

Synthesis of Metal Nitrate Compounds

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Eight different nitrates (Sigma-Aldrich and Fluka, all at least 97% purity) were used as raw materials, without additional purification. The starting materials were the following: magnesium nitrate hexahydrate (Mg(NO3)2·6H2O, Sigma-Aldrich, >98% purity), zinc nitrate hexahydrate (Zn(NO3)2·6H2O, Sigma-Aldrich, >98% purity), copper nitrate trihydrate (Cu(NO3)2·3H2O, Fluka, >98% purity), nickel nitrate hexahydrate (Ni(NO3)2·6H2O, Fluka, >97% purity), cobalt nitrate hexahydrate (Co(NO3)2·6H2O, Sigma-Aldrich, >98% purity), aluminium nitrate nonahydrate (Al(NO3)3·9H2O, Sigma-Aldrich, >98% purity), iron nitrate nonahydrate (Fe(NO3)3·9H2O, Sigma-Aldrich, >98% purity), chromium nitrate nonahydrate (Cr(NO3)3·9H2O, Sigma-Aldrich, >99% purity) and urea (NH2CONH2, Sigma-Aldrich, >98% purity).
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5

Synthesis of Metal Oxide Nanoparticles

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Magnesium nitrate hexahydrate (Mg(NO3)2·6H2O, 99.999%), aluminium nitrate nonahydrate (Al(NO3)3·9H2O, 99.997%), sodium hydroxide (NaOH, 97%), sodium carbonate (Na2CO3, 99.99%), iron(ii) sulphate heptahydrate (FeSO4·7H2O 99.0%) and sulphuric acid (H2SO4, 99.999%) were purchased from Sigma-Aldrich (Darmstadt, Germany). All the chemicals were used without further purification.
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6

Antioxidant Capacity Determination Protocol

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Folin–Ciocalteu reagent, ferric chloride hexahydrate and sodium carbonate anhydrous were purchased from Merck (Darmstadt, Germany); standards of gallic acid and quercetin, 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid (Trolox), 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,4,6-tris(2-pyridyl)-s-triazine (TPTZ), ferrous sulphate heptahydrate, sodium acetate anhydrous, glacial acetic acid, hydrochloric acid 0.1 M, aluminium nitrate nonahydrate and sodium nitrite were purchased from Sigma-Aldrich (Taufkirchen, Germany); ethanol 96% was acquired from Chimreactiv (Bucharest, Romania). All reagents were of analytical grade.
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7

Synthesis and Characterization of Metal-Organic Frameworks

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Aluminium chloride hexahydrate (AlCl3•6H2O, 99 %, Sigma-Aldrich), aluminium nitrate nonahydrate (Al(NO3)3•9H2O, ≥98 %, Sigma-Aldrich), terephthalic acid (H2BDC, C6H4-1,4-(CO2H)2, 98 %, Aldrich), isopropyl alcohol (IPA, ≥99.5 %, C3H8O, Scharlau), dimethyl sulfoxide (DMSO, C2H6OS, ≥99.5 %, Scharlau), N,Ndimethylformamide (DMF, HCON(CH3)2, 99.95 %, Scharlau) and n-hexane (C6H14, ≥95 %, Scharlau) were used as purchased without further purification. Polyimide P84® powder was purchased from HP Polymer GmbH. Poly(dimethylsiloxane) (PDMS, Sylgard® 184) was purchased from Ellsworth Adhesives Ibérica. The Sylgard® 184 silicone elastomer kit comprised two components: a base and a curing agent.
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8

Electrochemical Deposition of Activated Carbon

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Aluminium nitrate nonahydrate [Al(NO3)3.9H2O], glucose anhydrous [C6H12O6], ammonia (NH3.H2O), and sodium sulfate (Na2SO4) were purchased from Merck, India. Activated carbon (AC) and PVDF were bought from Alfa Aesar (India). The commercial grade stainless steel (grade-304, thickness: 1.0 mm) obtained from Amazon (India) was used as the substrate for the electrochemical study. All stainless-steel substrates were thoroughly cleaned with ethanol and DI water many times by ultra-sonication process and polished using sandpapers. Then they were dried in an electric hot-air oven at 60 ℃ for one hour and afterward used as the substrate for electroactive material coating.
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9

Synthesis of Metal-Based Compounds

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Fresh mint leaves were obtained from a local market and were washed thoroughly before use. Cobalt(ii) nitrate hexahydrate, ferrous sulphate heptahydrate, anhydrous ferric chloride, zinc nitrate hexahydrate, lead(ii) nitrate, ferrous sulphate and mercury(ii) chloride were purchased from Himedia Laboratories Pvt. Ltd, India. Copper chloride, calcium chloride, magnesium chloride and sodium chloride were purchased from Sisco Research Laboratories (SRL) Pvt. Ltd, India. Silver nitrate and cadmium nitrate tetrahydrate, manganous chloride, nickel nitrate, aluminium nitrate nonahydrate, potassium nitrate, potassium carbonate and sodium hydroxide were supplied by Merck Ltd, India. Ascorbic acid, citric acid, methionine, l-glutamic acid, l-cysteine, glycine, glucose and urea were purchased from Himedia Laboratories Pvt. Ltd. Solvents such as acetone, acetyl chloride, hexane, dimethyl sulfoxide were purchased from Merck Ltd, India. Methyl iodide, tetra butyl ammonium bromide and tetra ethyl acetate were supplied by SRL Pvt. Ltd, India. All the commercially available reagent grade chemicals were used as – received.
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10

Synthesis and Characterization of AO-II Sodium Salt

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Magnesium
nitrate hexahydrate,
aluminium nitrate nonahydrate, and PEG400 were procured
from MERCK Chemicals. Sodium hydroxide pellets (AR grade) were purchased
from Himedia laboratories. AO-II Sodium Salt (C.I. no. 15510, molecular
weight 350.32, λmax 483 nm) was procured from Sigma-Aldrich.
Double distilled water was used for all the experiments and for the
preparation of standard solutions.
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