A facile growth process of highly single crystalline Ir1-xVxO2 mixed metal oxide nanorods and their electrochemical properties
- 등재 SCIE, SCOPUS
- 발행기관 ROYAL SOC CHEMISTRY
- 발행년도 2017
- URI http://www.dcollection.net/handler/ewha/000000147338
- 본문언어 영어
- Published As http://dx.doi.org/10.1039/c7ce00637c
초록/요약
We introduce a facile growth process for mixed metal oxide nanorods of Ir1-xVxO2 in the broad range of metal contents between iridium and vanadium via a vapor phase transport process and their electro-chemical performance. The growth process of Ir1-xVxO2 nanorods was performed by modulating the ratios of two precursors of VO2 and IrO2, the growth temperature, the position of metal oxide precursors in a furnace, and the flow rate of carrier gases. The results indicated that quasi one-dimensional nanostructures of Ir1-xVxO2 can be obtained of a single crystalline nature with the tetragonal rutile crystal structure by randomly incorporating Ir4+ and V4+ metal ions into the same lattice unit of the tetragonal structure owing to similar ionic sizes. In addition, the fundamental electrochemical performances for Ir1-xVxO2 nanorods grown directly on an Au microelectrode of 25 mu m in diameter were carefully tested in order to explore the nonenzymatic amperometric sensing capacity of ascorbic acid as a biologically important molecule.
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