Table 1 Structural and textural properties of the confined AuPd nanoalloy catalysts

Sample	Metal content^a (wt%)		Au:Pd (atomic ratio)				D_metal^f (nm)	a₀^g (nm)	S_BET (m² g⁻¹)	V_t (cm³ g⁻¹)	D_p (nm)
	Au	Pd	Theo.^b	XPS^c	EDX-TEM^d	EDX-STEM^e	D_metal^f (nm)	a₀^g (nm)	S_BET (m² g⁻¹)	V_t (cm³ g⁻¹)	D_p (nm)
Au	3.25	0	-	-	-	-	3.1	0.4062	359	0.24	3.6
Au₈₀Pd₂₀	2.90	0.39	4	4.18	3.88	n.p.^h	3.2	0.4042	329	0.23	3.7
Au₆₇Pd₃₃	2.58	0.65	2	1.80	1.86	1.79	2.7	0.4022	334	0.23	3.6
Au₅₀Pd₅₀	2.12	1.17	1	0.90	0.92	1.10	2.9	0.4017	359	0.24	3.6
Au₃₃Pd₆₇	1.58	1.71	0.5	0.42	0.52	0.48	3.2	0.3991	336	0.23	3.6
Au₂₀Pd₈₀	1.03	2.25	0.25	0.21	0.22	n.p.	3.2	0.3980	315	0.22	3.6
Pd	0	3.31	-	-	-	-	2.8	0.3901	348	0.23	3.6
Au₅₀Pd₅₀-R6ⁱ	2.12	1.17	1	0.92	0.90	1.08	2.9	0.4017	292	0.18	3.4

For comparison, the properties for monometallic Au and Pd catalysts are also provided
^aTheoretical Au and Pd contents
^bTheoretical Au:Pd atomic ratio
^cAu:Pd atomic ratio estimated from the XPS spectra
^dAu:Pd atomic ratio estimated from the EDX pattern collected in TEM mode
^eAu:Pd atomic ratio estimated from EDX with a focused electron beam in the sub-nanometre range in STEM mode
^fParticle size estimated from the TEM images of the monometallic gold, monometallic palladium or nanoalloy Au_xPd_y
^gLattice spacing of metal calculated from the wide-angle XRD pattern
^hn.p.: not provided
ⁱThe Au₅₀Pd₅₀ catalyst after the sixth catalytic run

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