Spillover Phenomena and Its Striking Impacts in Electrocatalysis for Hydrogen and Oxygen Electrode Reactions

Table 1

Percentage contribution of each Pt 4f component the total peak area.

	Pt/Nb2O5-TiO2			Pt/Nb2O5
	Pt^0; (71.3 eV)	Pt(OH)x; (72.7 eV)	PtO2; (74.9 eV)	Pt^0; (71.3 eV)	Pt(OH)x; (72.7 eV)	PtO2; (74.9 eV)
RT	63.6	29.5	6.9	58.3	25.6	16.1
360°C in vacuum	68.8	18.7	12.5	58.5	30.1	11.4
360°C under H2 flow	75.9	16	8	71	19.1	9.8