由铝-空气电池放电产物制备单分散纳米α-Al2O3

摘要

利用铝-空气电池放电产物制备了纳米氧化铝。研究了放电产物浸出所需的最适宜温度和酸的用量，反应物滴定速度对前驱体的影响以及煅烧条件对纳米氧化铝分散性的影响。结果表明，当m（浓硫酸）∶m（放电产物）=5∶2，浸出温度为100℃时放电产物能够完全溶解，硫酸铝的滴定速度小于16 mL/min时能够得到纯净的碳酸铝铵前驱体，前驱体先经300℃低温加热，然后经过1 200℃高温煅烧可以得到粒径在50 nm左右，单分散的α-Al₂O₃。

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	牛海超
	王为

关键词：铝-空气电池碳酸铝铵纳米氧化铝

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.

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

Received 2015-06-17;

Fund:

国家重点基础研究发展计划（973计划，2013CB632500）。

Corresponding Authors: 王为,E-mail:wwangg@tju.edu.cn。 Email: wwangg@tju.edu.cn

About author: 牛海超(1990-),男,硕士研究生,主要从事纳米氧化铝及分散液的研究。

引用本文:

牛海超, 王为.由铝-空气电池放电产物制备单分散纳米α-Al₂O₃[J]. 化学工业与工程, 2017,34(4): 39-43

Niu Haichao, Wang Wei.Preparation of Monodisperse α-Al₂O₃ By Aluminum-Air Battery Discharge Product[J]. Chemcial Industry and Engineering, 2017,34(4): 39-43

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