| γ-Al2O3表面原位合成Ni-Al-CO3LDHs研究 | |
| In Situ Synthesis of Ni-Al-CO3LDHs on the Surface of γ-Al2O3 | |
| 摘要: | |
| 关键词: LDHs 含镍LDHs 表面原位合成 孔结构 | |
| 基金项目: | |
| Abstract: Ni-Al-CO3LDHs/γ-Al2O3have been prepared using an in-situ synthesis technique. NH3·H2O was chosen as activation agent of Al on the γ-Al2O3surface as well as precipitant. Ni-Al-CO3LDHs/γ-Al2O3was synthesized by controlling the reaction conditions such as temperature, concentration of Ni2+ and initial pH. The crystalline structure, chemical composition and porous structure were characterized by means of XRD, FT-IR, TG-DTA, 27Al MAS-NMR and N2 adsorption-desorption. The resulting sample of Ni-Al-CO3LDHs/γ-Al2O3possesses higher specific area and narrower pore distribution, in which Ni-Al-CO3LDHs are located on the surface of γ-Al2O3and share the same Al-O bonds with the γ-Al2O3lattice. Finally a possible structural model was proposed to account for the porous characters of Ni-Al-CO3LDHs/γ-Al2O3. | |
| Keywords: LDHs LDHs containing Ni in-situ synthesis pore structure | |
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| 毛纾冰,李殿卿,张法智,David G. Evans,段 雪.γ-Al2O3表面原位合成Ni-Al-CO3LDHs研究[J].无机化学学报,2004,20(5):596-602. | |
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