期刊
POWDER TECHNOLOGY
卷 201, 期 3, 页码 301-305出版社
ELSEVIER
DOI: 10.1016/j.powtec.2010.03.026
关键词
Kilogram-scale synthesis; Mg-Al-CO3-LDHs; Nanosheet; Two-stage reactor; Gas eddy; Liquid eddy
资金
- National Natural Science Foundation of China [10672197, 10972076]
- Outstanding Youth Science Foundation of Hunan Province [07JJ1001]
- Technological Program of Hunan Province
- Graduate Innovation Foundation of Hunan Province [CX2009B199]
A novel reactor with a two-stage reaction chamber was designed to kilogram-large-scale synthesized Mg-Al-CO3 layered double hydroxide (Mg-Al-CO3 LDHs) nanosheets. The effects of the reactant concentration and rotation speed of the dynamic structure on the crystal size and morphology were investigated. The results show that the size of Mg-Al-CO3 LDH particles gained in typical condition is about 50 nm in length and 5.7 nm in thickness, and the size becomes larger as the reactant concentration or rotationl speed decreased. The possible reaction mechanism was explained by three critical factors of the reactor, N-2 gas and polyethylene glycol 2000. (C) 2010 Elsevier B.V. All rights reserved.
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