. 2022 Mar 30;12(8):4440–4454. doi: 10.1021/acscatal.1c05904

Table 9. Catalytic Testing Results and XPS-Derived Au/Pd Molar Ratios of 1%AuPd/C Catalysts Depending on the Stabilizer Used during the Preparation and the Acid Addition.

stabilizer	catalyst	productivity^a (mol_H2O2 mmol^–1_Metal h^–1)	degradation^b (mol_H2O2 mmol^–1_Metal h^–1)	Au/Pd^c (−)
PAA	1%AuPd/GNP	1.9	1.7	0.2
	1%AuPd/GNP-H⁺	2.8	6.4	0.8
	1%AuPd/KBB	1.2	3.3	1.1
	1%AuPd/KBB-H⁺	1.9	7.3	1.5
PVA	1%AuPd/GNP	1.7	3.4	1.0
	1%AuPd/GNP-H⁺	2.1	5.2	1.2
	1%AuPd/KBB	1.2	4.4	1.3
	1%AuPd/KBB-H⁺	2.6	6.8	1.6
SPSS	1%AuPd/GNP	0.7	2.3	1.3
	1%AuPd/GNP-H⁺	1.5	2.4	1.7
	1%AuPd/KBB	^d	^d	^d
	1%AuPd/KBB-H⁺	0.6	3.8	2.2
PDDA	1%AuPd/GNP	7.4	3.6	1.1
	1%AuPd/GNP-H⁺	^d	^d	^d
	1%AuPd/KBB	1.3	4.4	1.3
	1%AuPd/KBB-H⁺	1.4	7.4	1.4
SF	1%AuPd/GNP	2.6	2.9	1.0
	1%AuPd/GNP-H⁺	2.6	2.4	1.0
	1%AuPd/KBB	1.5	7.9	0.6
	1%AuPd/KBB-H⁺	2.1	10.8	1.3

H₂O₂ direct synthesis reaction conditions: catalyst (0.01 g), H₂O (2.9 g), MeOH (5.6 g), 5%H₂/CO₂ (2.9 MPa), 25%O₂/CO₂ (1.2 MPa), 0.5 h, 2 °C, 1200 rpm.

H₂O₂ degradation reaction conditions: catalyst (0.01 g), H₂O₂ (50 wt % 0.68 g), H₂O (2.22 g), MeOH (5.6 g), 5% H₂/CO₂ (2.9 MPa), 0.5 h, 2 °C, 1200 rpm.

XPS-derived molar ratios.

Not applicable as no metal was immobilized.