Herein, researchers describe a strategy for fabricating ordered mesoporous In2O3-reduced grapheme oxide (rGO) nanocomposite through ultrasonic mixing. They subsequently investigate the gas-sensing properties of all the In2O3 specimens for different gases. The results exhibit the ordered mesoporous In2O3-rGO nanocomposite possess significantly enhanced response to ethanol even at low concentration levels, superior over pure mesoporous In2O3 nanoparticles. Similar strategy could be extended to other ordered mesoporous metal oxide-rGO nanocomposite for improving their gas-sensing performance.
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