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https://www.selleckchem.com/products/sbe-b-cd.html
Trace poisonous and harmful gases in the air have been harming and affecting people's health for a long time. At present, effective and accurate detection of ppb-level harmful gas is still a bottleneck to be overcome. Herein, we report a ppb-level TEA gas sensor based onp-n heterojunction of Co3O4/WO3, which is prepared with ZIF-67 as the precursor and provides Co3O4 deposited tungsten oxide flower-like structure. Due to the introduction of Co3O4 and the 3D flower-like structure of WO3, the Co3O4/WO3-2 gas sensor shows excellent gas se