Preparation and gas sensing properties of hierarchical flower-like In2O3 microspheres

A new visible light active multifunctional ternary composite based on TiO2–In2O3 nanocrystals heterojunction decorated porous graphitic carbon nitride for photocatalytic treatment of hazardous pollutant and H2 evolution

“…The XRD pattern of In 2 O 3 gave rise to six distinct diffraction peaks at 21.5 • , 30.5 • , 35.6 • , 45.4 • , 51.0 • and 60.8 • , which could be attributed to the (2 1 1), (2 2 2), (4 0 0), (4 3 1), (4 4 0) and (6 2 2) crystal planes of cubic In 2 O 3 (JCPDS, no. 71-2194), respectively [55]. The characteristic peak of g-C 3 N 4 around 27.4 • could be clearly identified, which was indexed as (0 0 2) diffraction plane.…”

Flower-like hierarchical structures consisting of porous single-crystalline ZnO nanosheets and their gas sensing properties to volatile organic compounds (VOCs)

“…Hierarchical structures may provide more spaces for gases to diffuse into the inner of the sensing film [22,23]. For example, Mohammad et al prepared the hierarchical structures based on ZnO nanowire or nanodisk which possessed high surface area to volume ratios and an increased proportion of exposed active planes.…”

Enhanced sensitive and selective xylene sensors using W-doped NiO nanotubes

“…Consequently, a simple method is needed to detect xylene. In recent years, gas sensor based on metal oxide semiconductor nanomaterials, such as SnO 2 [7][8][9][10], WO 3 [11][12][13][14], In 2 O 3 [15][16][17][18] and NiO [19][20][21][22], has attracted much attention for harmful, environmental, explosive and toxic gas detection, and they are possible candidates as xylene sensors due to their advantages of high response to target gases, simplicity in preparation and costeffective. However, the design of high performance xylene sensors based on semiconductor is still in the early stages of investigation.…”