The Na3V2(PO4)3 powder was synthesized by spray drying method as reported, in which a given amount of NH4VO3 (99.9%, Macklin), NH4H2PO4 (99%, Aladdin), Na2CO3 (99%, Energy Chemical) and glucose (as the carbon precursor and the reductive agent) were dissolved in deionized water and stirred at 80 °C until blue clear solution formed. The blue solution was spray-dried to obtain the precursor by a spraying dryer (BUCHI Mini Spray Dryer B-290), where the inlet and outlet temperatures were set at 200 °C and 105 °C, respectively, the feed pump speed was 8% and the gas speed was 5000 mL min−1. Then, the obtained powder was pre-calcined in a tube furnace at 350 °C for 5 h and calcined at 750 °C for 12 h in N2 atmosphere. The Na3V2(PO4)3 electrodes were prepared as followed: Na3V2(PO4)3 material, Super P and polyvinylidene fluoride (PVDF) were mixed with a weight ratio of 8 : 1 : 1 in N-methyl-2-pyrrolidone (NMP), which was spin-coated on a titanium grid, and was dried at 80 °C for 8 h under vacuum condition.
Na2co3
Manufactured by Energy Chemical
Sodium carbonate, also known as Na2CO3, is a white crystalline compound. It is a common inorganic chemical with a wide range of industrial and commercial applications. The primary function of Na2CO3 is to act as a water softener, pH regulator, and cleaning agent.
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2 protocols using na2co3
1
Synthesis and Electrode Fabrication of Na3V2(PO4)3
2
Organic Synthesis Protocols Compendium
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Triethylamine, Na2CO3, Al2O3, anhydrous CaCl2, sodium ethoxide, KH-560, 2-iodoyl benzoic acid (IBX), N,N-dimethylformamide (DMF) and furoyl chloride were purchased from Energy Chemical. Silica gel, urethane, methyl carbamate, tert-butyl carbamate and maleimide were obtained from Saun Chemistry. Methylbenzene, acetone, diethyl ether, dimethyl sulfoxide, graphite powder, potassium iron(iii ) cyanide, monometallic sodium orthophosphate and disodium hydrogen phosphate were purchased from Hangzhou Dafang Chemical Reagent Factory. All chemicals were of analytical grade. All aqueous solutions were prepared with distilled water (18.2 MΩ, Millipore, Bedford, MA).
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