Surface porosity-rich In2O3 microcubes as efficient channel for trace NO2 detection
Surface porosity-rich In2O3 microcubes as efficient channel for trace NO2 detection
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DOI：
10.1016/j.matlet.2020.127782
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发表时间：
2020-07
影响因子：
3
通讯作者：
Wei Yang;Hui-juan Chen;Chenglong Li;Hu Meng
中科院分区：
文献类型：
--
作者：
Wei Yang;Hui-juan Chen;Chenglong Li;Hu Meng
基于Kirkendall效应，通过简单的退火方法成功制备了表面多孔的In 2 O3微立方体。由于In 2 O3表面具有良好的透气性和对NO2的强吸附能力，该传感器在低温（~100 °C）下对NO2具有良好的响应性能，包括选择性、稳定性和低检测限（~10 ppb）。这项工作提供了一种有效的方法来设计多孔氧化物微结构与增强的传感性能。
On basis of the Kirkendall effect, the surface porosity-rich In2O3microcubes have been successfully prepared through a simple annealing method. Benefiting from the porous surfaces for gas-permeation and strong NO2adsorption capability, the as-fabricated In2O3sensor displayed a remarkable response towards NO2at low temperature (~100 °C), including ultrahigh selectivity, excellent stability and low detection limit (~10 ppb). This work offers an effective way to design porous oxide microstructures with enhanced sensing performance.