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(a) Responses of 1.7 at% Au-loaded SnO2 nanofibers at Toper = 300 °C to various reducing gases (5 ppm), and (b,c) typical TEM images of SnO2:Au nanofibers. Gold clusters had sizes in the range of 5–10 nm. Adapted with permission from [189]. Copyright 2014 Elsevier.
