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Search for "fabricated fractal" in Full Text gives 1 result(s) in Beilstein Journal of Nanotechnology.

Morphology-driven gas sensing by fabricated fractals: A review

Vishal Kamathe and
Rupali Nagar

Beilstein J. Nanotechnol. 2021, 12, 1187–1208, doi:10.3762/bjnano.12.88

to be possessing better gas sensing capabilities. Fab-fracs with these salient features will help in designing the commercial gas sensors with better performance. Keywords: adsorption sites; fabricated fractal; fractal dimension; gas sensor; morphology; pore network; recovery time; response time

gas sensors exist [26][30][31]. Although there are numerous reviews on gas sensing [7][29][32][33][34][35][36][37][38], reviews on fabricated fractal (fab-frac)-based gas sensors have not been addressed to the best of our knowledge. In this review, diverse fractal structures used in gas sensing

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Figure 1: Fractals in nature. Various fractal geometries found in nature: (a) human lung network, (b) snowfla...

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Figure 2: (a) Fractal morphology. Fractal length scales depicting the change in fractal geometry as a functio...

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Figure 3: SnO₂ fab-fracs. Various shapes of large-scale SnO₂ fab-fracs synthesized under controlled condition...

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Figure 4: Growth of sol–gel-grown fab-fracs. The schematic depicts the growth mechanism of fab-fracs in diffe...

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Figure 5: SnO₂ fractals for H₂ sensing. SEM images of samples calcined at 550 °C displaying a microstructure ...

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Figure 6: SnO₂ dendritic nanowires. SEM images of SnO₂ DNWs at low (a) and high (b) magnifications, respectiv...

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Figure 7: Leaf-like SnO₂. (a–f) SnO₂ SEM images of samples obtained after different reaction times, (g) schem...

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Figure 8: Density and dimension of SnO₂ fractal films. (a–d) SEM images and (e) CO gas sensing behavior of SnO...

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Figure 9: SnO₂ fractal ethanol sensors. Typical SEM images with (a) low and (b) high magnification of the gro...

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Figure 10: SnO₂/CuO nanoscale hybrid dendrites. SEM images of (a) Sn–Cu porous foams, (b) the 3D interlock net...

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Figure 11: TiO₂ fractals. (a) Top-view SEM image of TiO₂ fractals. (b) Double-log plot of foreground pixel num...

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Figure 12: TiO₂ fractals on candle soot templates. SEM images of (a) top-view morphology and (b) thickness of ...

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Figure 13: Hematite fractals. SEM images of (a) dendrites, (b) nanocubes, (c) rhombohedra, and (d) spindles of...

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Figure 14: Dandelion-like ZnO fractals. (a–f) SEM images of the samples annealed at different temperatures. Th...

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Figure 15: ZnO nanoscale flowers. SEM images of the samples prepared with a reaction time of (a, b) 2 h and (c...

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Figure 16: ZnO dendritic sensor. (a) Schematic illustration and (b) SEM micrograph of a ZnO dendrite gas senso...

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Figure 17: Si/WO₃ nanowires. (a–d) SEM images of Si/WO₃ NWs, (e) HRTEM image of a WO₃/SiNW interface, (f) XRD ...

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Figure 18: WO₃ dendrites. (a, b) SEM images of the grown hierarchical WO₃ dendrites at low and high magnificat...

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Figure 19: Bismuth vanadate hyperbranched structures. (a) FESEM image of hyperbranched m-BiVO₄; (b) magnified ...

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Figure 20: Bismuth vanadate dendrites. SEM images of (a) GO, (b) rGO, (c) pure pine dendritic BiVO₄, and (d) B...

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Figure 21: CdS dendrites. (a, b) CdS dendrites observed under SEM and TEM. The marked regions “c” and “e” were...

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Figure 22: Au–Bi₂O₃ fractals. (a) Schematic of a Au–Bi₂O₃ fractal shown with magnified regions showing reducti...

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Figure 23: Co₃O₄ dendrites. SEM images of (a, b) precursor and (c, d) Co₃O₄ nanostructure; (e, f) TEM images o...

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Figure 24: Gas sensing mechanisms. The schematic presents the different mechanisms through which SMO sensors c...

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Review

Published 09 Nov 2021

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