Gas sensing behavior of polyvinylpyrrolidone-modified ZnO nanoparticles for trimethylamine

Porous Indium Oxide Nanotubes: Layer‐by‐Layer Assembly on Carbon‐Nanotube Templates and Application for Room‐Temperature NH3 Gas Sensors

“…The characterization of sensors based on In 2 O 3 nanotubes was similar to that in a previous report [21], and can be obtained from the Supporting information. …”

Multiple-layered structure of obelisk-shaped crystalline nano-ZnO prepared by sol–gel route

“…One-dimensional nanostructures exhibit interesting electronic and optical properties due to their low dimensionality leading to quantum confinement effects. The novel properties of nanoscale zinc oxide particles have found applications in a variety of applications such as luminescence [1][2][3], varistors [4,5], solar cells [6], gas sensors [7,8]. Many of the synthetic approaches such as sol-gel method [13], co-precipitation [12], hydrothermal method [14], microwave synthesis [9][10][11], and thermal evaporation method [15] have been used for the preparation of ZnO powders.…”

“…The novelty of this method is that the samples were not purified and centrifuged in the fabrication stage because of oxidation. In many synthesis methods, the researchers purified samples to have uniform particles which oxidize ZnO nanoparticles by purification and centrifugation process [2,8,[10][11][12][13][14][15]. Synthesis of ZnO nanoparticles by sol-gel technique is reported by Zn(NO 3 ) 2 Á6H 2 O precursor and calcined at 500°C.…”

Synthesis, characterization and gas sensing properties of flowerlike In2O3 composed of microrods

“…TMA measurements are required and important in foodstuff industry management, food quality monitoring, and the freshness detection of fish. Traditional detecting methods require lots of time and complicated work, so much effort has been made to develop TMA sensors fabricated using In 2 O 3 [14], SnO 2 [15], ZnO [16], and TiO 2 [17], which possess many advantages, i.e., low-cost, easy and rapid implementation, high reliability. Up to now, there have been a few reports concerning the use of In 2 O 3 for TMA detection [14].…”