本文通过透射电子显微镜(TEM)观察到由空气-水界面上生成的SiO2二次纳米粒子煅烧后所发生的微结构变化,探讨了变化机理.结果表明:SiO2二次粒子中一次粒子的直径在400 ℃煅烧后从外向里呈现递减变化;外层粒子受热长大形成堆积孔,导致内部较小的一次粒子通过堆积孔的空隙在超声震荡下散逸出来.
参考文献
| [1] | Heather Hillebrenner;Fatih Buyukserin;Myungchan Kang;Miguel O.Mota;Jon D.Stewart;Charles R.Martin .Corking Nano Test Tubes by Chemical Self-Assembly[J].Journal of the American Chemical Society,2006(13):4236-4237. |
| [2] | Tuan HY;Ghezelbash A;Korgel BA .Silicon nanowires and silica nanoitubes seeded by copper nanoparticles in an organic solvent[J].Chemistry of Materials: A Publication of the American Chemistry Society,2008(6):2306-2313. |
| [3] | NICOLE C. MUELLER;BERND NOWACK .Exposure Modeling of Engineered Nanoparticles in the Environment[J].Environmental Science & Technology: ES&T,2008(12):4447-4453. |
| [4] | 蔡红,王贞尧,张干诚,吴梅梅,黄毓敏.石英微粉表面结构对硬硅钙石中空二次粒子形貌的影响[J].无机材料学报,1999(03):431-436. |
| [5] | M.Stanley Whittingham .Lithium Batteries and Cathode Materials[J].Chemical Reviews,2004(10):4271-4301. |
| [6] | Cho J.;Lee JG.;Kim B.;Park B. .Effect of P2O5 and AlPO4 coating on LiCoO2 cathode material[J].Chemistry of Materials,2003(16):3190-3193. |
| [7] | Takahashi K;Yamasaki N;Mishima K et al.Coating of pulp fiber with xonotlite under hydrothermal conditions[J].Journal of Materials Science Letters,2002,21(19):1521-1523. |
| [8] | Katsumata H.;Kaneco S.;Matsuno R.;Itoh K.;Masuyama K.;Suzuki T. Funasaka K.;Ohta K. .Removal of organic polyelectrolytes and their metal complexes by adsorption onto xonotlite[J].Chemosphere,2003(5):909-915. |
| [9] | Ko Y M;Kwon W T;Kim Y W .Development of Al2O3-SiC composite tool for machining application[J].Ceramics International,2004,30(08):2081-2082. |
| [10] | Xiaoming Sun;Scott M.Tabakman;Won-Seok Seo .Separation of Nanoparticles in a Density Gradient:FeCo@C and Gold Nanocrystals[J].Angewandte Chemie,2009(5):939-942. |
| [11] | 黄开金.纳米材料的制备及应用[M].北京:冶金工业出版社,2009:143-186. |
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