Copper nitrate hexahydrate (Cu(NO3)2⋅3H2O, 99%, Sinopharm Chemical Regent Co., Ltd), sodium borohydride (NaBH4, 98%, Sinopharm Chemical Regent Co., Ltd), trimesic acid (C9H6O6, 99%, Adamas-beta), lauric acid (C12H24O2, 99%, Adamas-beta), 1-butanol (C4H10O, 99.9%, Adamas-beta), potassium hexacyanoferrate (III) (K3[Fe(CN)6], 99%, Adamas-beta) and ethanol (C2H5OH, 99.5%, Adamas-beta) were used as received. Millipore water was used in all experiments.
Potassium hexacyanoferrate 3
Manufactured by Sinopharm
Potassium hexacyanoferrate (III) is a chemical compound with the formula K3[Fe(CN)6]. It is a crystalline solid that is soluble in water. The compound's core function is as a chemical reagent and analytical tool.
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2 protocols using potassium hexacyanoferrate 3
1
Synthesis of Copper Nanoparticles
2
Electrochemical Impedance Spectroscopy of Redox Probes
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Potassium hexacyanoferrate (II) trihydrate (K4[Fe(CN)6]·3H2O), potassium hexacyanoferrate (III) (K3[Fe(CN)6]), and potassium chloride (KCl) were provided by Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China).
Electrochemical impedance spectroscopy (EIS) was performed on a CHI660A electrochemical workstation (Chenhua Instrument Co. Ltd., Shanghai, China) in a conventional three-electrode system. A modified electrode, a saturated calomel electrode (SCE) and platinum wire were employed as the working, reference, and counter electrode, respectively. EIS measurements were performed in 5 mmol L−1 K3[Fe(CN)6]/K4[Fe(CN)6] aqueous solution with 0.1 mol L−1 KCl as the supporting electrolyte, within the frequency range from 100 kHz to 0.1 Hz, and a bias potential of 0.2 V. The geometric surface area of glassy carbon electrode (GCE) was estimated to be 7 mm2, and that of CNTs/CNOs buckypapers and Fe3C/CNTs buckypapers electrodes to be 8 mm2.
Electrochemical impedance spectroscopy (EIS) was performed on a CHI660A electrochemical workstation (Chenhua Instrument Co. Ltd., Shanghai, China) in a conventional three-electrode system. A modified electrode, a saturated calomel electrode (SCE) and platinum wire were employed as the working, reference, and counter electrode, respectively. EIS measurements were performed in 5 mmol L−1 K3[Fe(CN)6]/K4[Fe(CN)6] aqueous solution with 0.1 mol L−1 KCl as the supporting electrolyte, within the frequency range from 100 kHz to 0.1 Hz, and a bias potential of 0.2 V. The geometric surface area of glassy carbon electrode (GCE) was estimated to be 7 mm2, and that of CNTs/CNOs buckypapers and Fe3C/CNTs buckypapers electrodes to be 8 mm2.
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