Beilstein J. Nanotechnol.2019,10, 1380–1390, doi:10.3762/bjnano.10.136
seem to be approaching their limit. Because of this, there is increasing interest in the fabrication of functional materials based on nanowires, i.e., quasi-one-dimensional objects. In this work, nanocrystalline tin dioxide samples with different morphology were synthesized. The gas-transportmethod
; gastransportmethod; nanowires; quasi-one-dimensional materials; sol–gel synthesis; tin dioxide; X-ray absorption near edge structure (XANES); X-ray photoelectron spectroscopy (XPS); Introduction
Semiconductor sensor functionality relies on heterogeneous catalytic chemical processes, which makes the
characterization
SnO2 nanowire synthesis
The gastransportmethod based on the vapor–liquid–solid (VLS) mechanism was used for the synthesis of SnO2 nanowires. Argon saturated with water vapor served as the transport medium. Water was used as a mild oxidant of metallic tin in the following reaction:
The formation
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Figure 1:
Scheme of nanowire synthesis (a), SEM image of SnO2 nanowires after synthesis (b), SEM image of a s...