Preparation of Monodisperse α-Al2O3 By Aluminum-Air Battery Discharge Product

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Abstract

Nanometer alumina was prepared by using aluminum-air battery discharge product. The experiment was carried out to study the temperature and the amount of acid for the discharge product reaction, and the influence of reactant titration speed on the precursor and the influence of calcination conditions on the nanometer alumina dispersion. The results show that the discharge product can be completely dissolved when m(sulfuric acid):m(discharge)=5:2 and the reaction temperature is at 100 ℃, the pure ammonium aluminum carbonate precursor can be achieved when the titration speed of aluminum sulfate is less than 16 mL/min, when the precursor is heated at the low temperature of 300 ℃ first, and then calcinated at the high temperature of 1 200 ℃, the monodispersed α-Al₂O₃ can be around 50 nm.

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	Articles by authors
	Niu Haichao
	Wang Wei

Keywords： aluminum-air batteries； ammonium aluminum carbonate； nanometer alumina

Received 2015-06-17;

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Niu Haichao, Wang Wei.Preparation of Monodisperse α-Al₂O₃ By Aluminum-Air Battery Discharge Product[J] Chemcial Industry and Engineering, 2017,V34(4): 39-43

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