Fig. 1: Structural characterizations of 10Ag/SnO2.

a TEM image of fresh 10Ag/SnO2. b HRTEM image of fresh 10Ag/SnO2. c HAADF-STEM image and corresponding EDS element mapping of 10Ag/SnO2. d Ag 3 d XPS spectra of fresh 10Ag/SnO2 and spent 10Ag/SnO2. e XRD patterns of fresh 10Ag/SnO2 and spent 10Ag/SnO2. The a.u. stands for arbitrary units. Source data are provided as a Source Data file.