Fig. 4: Ta L3-edge X-ray absorption spectroscopy (XAS) for TaAlS-1 zeolite and references. | Nature Communications

Fig. 4: Ta L3-edge X-ray absorption spectroscopy (XAS) for TaAlS-1 zeolite and references.

From: Control of zeolite microenvironment for propene synthesis from methanol

Fig. 4: Ta L3-edge X-ray absorption spectroscopy (XAS) for TaAlS-1 zeolite and references.

a XANES spectra at the Ta L3 edge of Ta foil, Ta(V) references and Ta-zeolites. b XANES spectra illustrating the influence of methanol adsorption at room temperature on Ta-zeolites. c Operando XANES spectra at the Ta L3 edge of TaAlS-1 zeolite during the conversion of methanol, only selected spectra shown. d Deconvolution of XANES via linear combination fitting to activated and adsorbed species.

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