fig3
Figure 3. (A) H2-TPD spectra of Pt2/LaQS and Pt2/LaOV-r; (B) XPS spectra of Pt 4f of Pt/C, Pt2/LaQS and Pt2/LaOV-r; (C) H2-TPR spectra of Pt2/LaQS and Pt2/LaOV-r; (D-F) H2 adsorbed on Pt NPs, Pt sites on Pt2/LaOV-r and Pt2/LaQS. TPD: Temperature-programmed desorption; XPS: X-ray photoelectron spectroscopy; TPR: temperature-programmed reduction; NPs: nanoparticles.
