Tuning Catalytic Properties of Supported Bimetallic Pd/Ir Systems in the Hydrogenation of Cinnamaldehyde by Using the “Water-in-Oil” Microemulsion Method

Table 2

XPS data and surface fraction of Pd and Ir components determined by CV measurements.

Catalyst	XPS data					Surface fraction (CV)
	Pd (at.%)	Ir (at.%)	Pd 3d5/2 BE (eV)	BE shift (eV)	Ir 4f7/2 BE (eV)	Pd	Ir
Pd	—	—	335.3	—	—	1
PdIr-0.02	1.95	1.03	335.8	0.5	61.7	0.85	0.15
PdIr-0.04	—	—	—	—	—	0.83	0.17
PdIr-0.08	1.33	0.86	335.4	0.1	60.9	0.81	0.19
PdIr-0.14	1.04	0.75	335.5	0.2	61.0	0.80	0.20
PdIr-0.2	0.71	0.74	335.7	0.4	61.2	0.77	0.23
Ir	—	—	—	—	60.7		1