Figure 1From: Hollow Sodium Tungsten Bronze (Na0.15WO3) Nanospheres: Preparation, Characterization, and Their Adsorption Propertiesa FESEM image of hollow Na0.15WO3nanospheres. Thearrows indicate the broken hollow nanospheres from which the thickness, ~25 nm, of the shell of the hollow nanospheres was estimated.b TEM image of the hollow Na0.15WO3nanospheres. Thedark edge andbright center character of the TEM image of the nanospheres reveal the formation of the hollow structureBack to article page