Enhanced xylene sensing performance of hierarchical flower-like Co3O4 via In doping

Enhanced xylene sensing performance of hierarchical flower-like Co3O4 via In doping

Metal ions doping is a typical approach for tuning sensing properties of metal oxide semiconductors based gas sen-sors.Herein,hierarchical flower-like pure and In-doped Co3O4 nanostructures assembled by porous two-dimensional(2D)nanosheets are synthesized via a solvothermal method and annealing proc...

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Veröffentlicht in:Chinese physics B 2023-05, Vol.32 (6), p.728-736
Hauptverfasser: Zhang, Jing, Ling, Jianyu, Gu, Kuikun, Levchenko, Georgiy G., Liang, Xiao
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density functional theory (DFT)
sensor
xylene
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creator Zhang, Jing
Ling, Jianyu
Gu, Kuikun
Levchenko, Georgiy G.
Liang, Xiao
description Metal ions doping is a typical approach for tuning sensing properties of metal oxide semiconductors based gas sen-sors.Herein,hierarchical flower-like pure and In-doped Co3O4 nanostructures assembled by porous two-dimensional(2D)nanosheets are synthesized via a solvothermal method and annealing process.The sensing measurements display that the In@Co3O4-4 based sensor possesses high response value of 55.9 toward 100 ppm xylene at 150 ℃,which is nearly 3.8 times larger than that of pure Co3O4 sensor.Furthermore,it possesses good selectivity and anti-humidity properties.Com-bined with the results of DFT calculations,the mechanism of enhanced gas sensing performance is analyzed systematically.
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xylene
title Enhanced xylene sensing performance of hierarchical flower-like Co3O4 via In doping
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