Synthesis 196 SnO2+C-Sn(liquid)+CO2(gas) 700℃ surface tension shrunk and formed tin nano-droplets 0 adhered to the carbon shell ater cooling tin nanoparticles encapsulated elastic hollow carbon spheres (TNHCs) 1010 Synthesis 700℃ shrunk and formed tin nano-droplets adhered to the carbon shell after cooling tin nanoparticles encapsulated elastic hollow carbon spheres (TNHCs) surface tension