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A transmission electron microscopy (TEM) study dedicated to the understanding of dispersion and location of Ag nanospecies in silver–alumina catalysts is reported. A special attention is put on the conditions of powder catalyst deposition on the grids for TEM analysis. When the deposition is conducted through conventional suspension in ethanol (EtOH) then drying, numerous Ag nanoparticles with sizes...
The structural stability of hollow Cu 2 O and NiO nanoparticles associated with reduction and oxidation reactions at high temperatures was studied by transmission electron microscopy (TEM). Hollow Cu 2 O and NiO in annealing under 5.0×10 −5 Pa was observed to have shrunk at 473 and 623K, respectively, where the reduction reactions from oxides to metals started. As a result...
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