Abstract
High surface area Nb and Sb-doped tin oxides are prepared by co-precipitation. The differences in conductivity are rationalised using HT-XRD, SSNMR and Nb K-edge XANES characterisation.
Highlights
Characterisation by high-temperature X-ray diffraction (HT-XRD) and 119Sn MAS NMR indicate that Sb is homogeneously distributed within the SnO2 lattice
This interpretation is supported by Nb K-edge X-ray absorption near edge spectroscopy (XANES) measurements, which show that Nb is partially migrating into SnO2 during the calcination treatment
This is further confirmed by 119Sn MAS NMR spectroscopy
Summary
Structural differences between Sb- and Nb-doped tin oxides and consequences for electrical conductivity†. Sb- and Nb-doped tin oxides have been prepared by a co-precipitation method. Whilst X-ray powder diffraction and EDX mapping indicate similar dopant distributions, more detailed characterisation by variable hightemperature XRD, 119Sn MAS NMR and Nb K-edge X-ray absorption near edge structure spectroscopy reveal clear differences in the oxide structures. This detailed structural information is used to validate the measured differences in electrical conductivity
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
