Results of the curve-fitting analysis of Zr K-edge EXAFS.

Catalyst	Shell	CNa	r b/Å	Δσc/Å
ZWOH_6M_12h	Zr–O	4.11 ± 4.71	2.113 ± 0.065	0.082d ± 0.065
		3.15 ± 3.85	2.233 ± 0.073	0.082d
	Zr–W	1.64 ± 0.16	3.941 ± 0.002	0.092 ± 0.004
ZWO_6M_12h_873 (ZWO-I)	Zr–O	4.05 ± 4.69	2.108 ± 0.070	0.094d ± 0.070
		3.53 ± 3.69	2.241 ± 0.072	0.094d
	Zr–W	2.39 ± 0.24	3.943 ± 0.003	0.107 ± 0.005
ZWO_6M_12h_1073	Zr–O	4.75 ± 2.32	2.111 ± 0.027	0.083d ± 0.038
		3.13 ± 1.49	2.256 ± 0.044	0.083d
	Zr–Zr	4.06 ± 0.59	3.445 ± 0.003	0.081 ± 0.008
		3.68 ± 2.42	3.977 ± 0.014	0.114 ± 0.039
ZrW2O7(OH2)2 (ZWOH_6M_48h)	Zr–O	3.76 ± 3.19	2.096 ± 0.044	0.066d ± 0.059
		4.06 ± 2.39	2.214 ± 0.038	0.066d
	Zr–W	2.67 ± 0.65	3.451 ± 0.004	0.073 ± 0.010
		3.06 ± 0.71	3.910 ± 0.003	0.066 ± 0.010
ZrW2O8 (ZWO_6M_48h_873)	Zr–O	6.49 ± 0.88	2.081 ± 0.005	0.079 ± 0.014
	Zr–W	2.86 ± 1.09	3.720 ± 0.007	0.075 ± 0.018
		4.56 ± 1.11	3.900 ± 0.004	0.073 ± 0.011
Zr(OH)x	Zr–O	4.72 ± 2.19	2.121 ± 0.026	0.080d ± 0.036
		1.89 ± 1.41	2.263 ± 0.050	0.080d
	Zr–Zr	3.59 ± 1.24	3.390 ± 0.021	0.117 ± 0.023
		0.21 ± 0.49	3.488 ± 0.013	0.063 ± 0.087
m-ZrO2	Zr–O	4.40 ± 2.23	2.111 ± 0.027	0.078d ± 0.040
		3.34 ± 1.43	2.252 ± 0.038	0.078d
	Zr–Zr	4.87 ± 0.68	3.450 ± 0.011	0.075 ± 0.008
		3.80 ± 2.38	3.981 ± 0.013	0.097 ± 0.036
WO3–ZrO2 (reference)	Zr–O	5.10 ± 2.67	2.119 ± 0.030	0.086d ± 0.040
		3.25 ± 1.76	2.265 ± 0.049	0.086d
	Zr–Zr	4.47 ± 0.67	3.437 ± 0.003	0.083 ± 0.008
		4.82 ± 2.77	3.982 ± 0.013	0.104 ± 0.038
WO3–ZrO2 (home-made)	Zr–O	4.99 ± 1.54	2.127 ± 0.017	0.089d ± 0.026
		2.44 ± 0.85	2.289 ± 0.041	0.089d
	Zr–Zr	6.61 ± 1.77	3.473 ± 0.013	0.094 ± 0.014
		6.83 ± 2.03	3.644 ± 0.018	0.101 ± 0.021

^aCoordination number.

^bInteratomic distance.

^cDebye–Waller factor.

^dConstrained to be the same.