In a novel method for synthesizing ultrafine aluminum hydroxide particles presented in this paper, the morphology and crystal structure of the particles were investigated by TEM, XRD, etc. The process consisted of two...In a novel method for synthesizing ultrafine aluminum hydroxide particles presented in this paper, the morphology and crystal structure of the particles were investigated by TEM, XRD, etc. The process consisted of two steps： chemical precipitation by acid and carbonation. The product has an hourglass or half-hourglass morphology with a narrow size distribution of 150-200 nm. Major endothermal peak of decomposition was found at 270℃ by differential thermal analysis. X-ray diffraction identified the product as bayerite. Those properties were compared with those of alusminum hydroxide prepared by carbonization only.展开更多
基金This work was supported by the National Natural Science Foundation of China(Grant Nos.20236020,20176009)the Major Basic Research Project of Shanghai(04DZ14002)+2 种基金the Pre-973 Project of China(2002CCA 2200)the Special Project for Key Laboratories of Shanghai(04DZ05622)the Special Project for Nanotechnology of Shanghai.
文摘In a novel method for synthesizing ultrafine aluminum hydroxide particles presented in this paper, the morphology and crystal structure of the particles were investigated by TEM, XRD, etc. The process consisted of two steps： chemical precipitation by acid and carbonation. The product has an hourglass or half-hourglass morphology with a narrow size distribution of 150-200 nm. Major endothermal peak of decomposition was found at 270℃ by differential thermal analysis. X-ray diffraction identified the product as bayerite. Those properties were compared with those of alusminum hydroxide prepared by carbonization only.
