Acta Scientiarum Naturalium Universitatis Pekinensis

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Preparation of ZnO Powders by Decomposition of Chelates

ZHAO Zhenguo, DING Ding, CHENG Humin, MA Jiming, QI Limin   

  1. Department of Chemistry, Peking University, Beijing, 100871
  • Received:1996-03-28 Online:1996-11-20 Published:1996-11-20


赵振国, 丁丁, 程虎民, 马季铭, 齐利民   

  1. 北京大学物理化学研究所,北京,100871

Abstract: The zinc oxide powders have been prepared by decomposition of zinc ammine and zinc chelates. The NH4OH as complexing agent and the ethylenediaminetetraacetic acid disodium salt, L-Cysteine as chelating agent were used. The experimental results show that the nanometresize ZnO powders were obtained when the metal chelates have a medium stability constant.

Key words: ZnO, preparation of powders, metal chelates

摘要: 利用螯(络)合物分解法制备了ZnO微粉,选用的螯(络)合剂有氢氧化铵、乙二胺四乙酸二钠和巯基丙氨酸。实验结果表明,由于Zn-NH3络离子的稳定常数小,所得ZnO粒子直径大,而当络离子的稳定常数适当时可得到纳米级微粉粒子。

关键词: ZnO, 微粉粒子, 金属螯合物

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