Synthesis of Catalysts and Its Application for Low-Temperature CO Oxidation
Figure 7
XPS of Co 2p spectra of the catalysts before reaction: (a) 1% -TiO2, (b) 5% -TiO2, (c) Au/1% -TiO2, (d) Au/3% -TiO2, and (e) Au/5% -TiO2, (Co2+ is the dash line, and Co3+ is the short dash line).
