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Polycrystalline Well-Shaped Blocks of Indium Oxide Obtained by the Sol-Gel Method and Their Gas-Sensing Properties

Chemistry of Materials, ISSN: 0897-4756, Vol: 15, Issue: 23, Page: 4377-4383
2003
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    131
    • Citation Indexes
      131
  • Captures
    30

Article Description

Aging-induced aggregation of the nanoparticles in the colloidal solution of indium hydroxide leads to the formation of micrometer particles in the form of well-shaped blocks. As shown by high-resolution transmission electron microscopy and selected area electron diffraction, the well-shaped blocks have a polycrystalline nature composed of small nanounits. After calcination at 400 °C, they consist of cubic and hexagonal InO. Semiconducting sensors, composed of well-shaped blocks of cubic and hexagonal InO, show high sensitivity to low levels of ozone in the air.

Bibliographic Details

Alexander Gurlo; Nicolae Barsan; Udo Weimar; Maria Ivanovskaya; Antonietta Taurino; Pietro Siciliano

American Chemical Society (ACS)

Chemistry; Chemical Engineering; Materials Science

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