这篇文献里面提到
Previous studies of mesoporous silica
shell growth on nanoparticle surfaces suggest a three-stage
mechanism for the formation of the mesoporous shell: silica
oligomerization, formation of silica/CTAB primary particles,
and the aggregation of the primary particles.19 In this system,
the CTAB surfactant molecules were strongly localized on
the nanoparticle surfaces compared to in solution (0.0015
M), causing silica/CTAB primary particles to form and
aggregate directly on the nanoparticle surfaces, which may
have promoted mesoporous shell growth compared to free
mesoporous silica particle formation.
没太明白，CTAB是怎么影响形成介孔的silica coating呢？最后CTAB应该也参与形成了介孔包覆层中的一部分吧？
另外想问，silica coating的种类是dense 还是mesoporous取决于什么呢？是硅源吗？
看文献脑子看糊涂了已经...请大家指教，谢谢！！
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