Indium oxide octahedrons based on sol–gel process enhance room temperature gas sensing performance

Synthesis of single crystalline In2O3 octahedra for the selective detection of NO2 and H2 at trace levels

“…9(b), sensors work optimum when operated at a relatively low temperature of 130 1C. Comparing these results with those available in the literature for similar In 2 O 3 structures, Mu et al 17 reported a response that is 4 times lower with very slow response and recovery dynamics at room temperature for 100 ppb NO 2 . Bloor et al 18 reported a response that is 8 times lower at a much higher operating temperature (i.e.…”

Synthesis and formation mechanisms of morphology-controllable indium-containing precursors and optical properties of the derived In2O3 particles

“…[1][2][3][4][5] In the earlier literature, In 2 O 3 and its precursors were mostly prepared by the high-temperature vapor phase reaction [6][7][8][9] and wet chemical methods. 5,[10][11][12][13][14][15][16] Using these techniques, an increasing number of morphologies have been reported. For example, Yadav and coworkers proposed a chemical vapor deposition method and obtained nanorods of In 2 O 3 .…”

“…9 Mu et al reported a mild sol-gel technique using citrate acid and prepared indium oxide octahedra loaded on glass substrates. 11 Jadhav and coworkers developed a hydrothermal method and fabricated cubes and maize-corns of In(OH) 3 . 13 Liu and coworkers proposed a simple mixed solvothermal process and synthesized 18-facet In(OH) 3 polyhedra.…”

Metal oxide nanomaterial-based sensors for monitoring environmental NO2and its impact on the plant ecosystem: a review

“…A different process for the manufacture of MOS-nanostructured NO 2 gas sensors is pre-synthesis followed by deposition (using spin coating, paste printing, and PLD methods, etc.) of the as-prepared MOS-based nanomaterials synthesized by hydrothermal [19,102,103,125,126], solvothermal [135], and solgel [106,136], and others [175,176].…”