General synthesis strategy of ZrO₂ nanofilms with few-atom layered thickness for boosting triethylamine detection

ZrO₂, a traditional inert transition metal oxide (TMO), can be prepared into ZrO₂ nanofilms (NFs) with a single-layer thickness of only 2.5 nm through the generally applicable two-dimensional TMO synthesis strategy reported by us, and has displayed remarkable sensitivity and selectivity properties for triethylamine gas detection.