Figure 15.

a Synthetic scheme of Sn nanoparticles encapsulated elastic hollow carbon nanospheres (TNHCs); b SEM image of SnO2 coated SiO2 nanospheres; c TEM image of the hollow SnO2 nanospheres; d SEM image of TNHCs, the inset is a close view of a single broken carbon spherical shell studded with Sn nanoparticles; e TEM image of TNHCs [59]. Copyright Wiley–VCH Verlag Gmbh & Co. KGaA. Reproduced with permission

Liu and Xue Nanoscale Research Letters 2010 5:1525-1534   doi:10.1007/s11671-010-9728-5