Three-dimensional Au nanoparticles-decorated γ-Fe2O3@reduced graphene oxide core-shell heterojunctions for highly sensitive room-temperature gas sensors

Au/α-Fe2O3/Ti3C2Tx MXene Nanosheet Heterojunctions for High-Performance NH3 Gas Detection at Room Temperature

“…For example, Zou et al designed that the γ-Fe 2 O 3 @rGO-Au ternary heterostructures showed significantly improved NO 2 gassensing performance than the bare γ-Fe 2 O 3 @rGO sensor. 21 Chen et al reported the CuO nanorods modified with Au displayed outstanding NO 2 response at RT. 22 Previous studies have proved that the combination of Au NPs with MOS through surface modification is a useful mean to enhance gas sensing properties.…”

“…Until now, several investigations on the enhancement of gas sensors utilizing Au modification have been reported. For example, Zou et al designed that the γ-Fe 2 O 3 @rGO-Au ternary heterostructures showed significantly improved NO 2 gas-sensing performance than the bare γ-Fe 2 O 3 @rGO sensor . Chen et al reported the CuO nanorods modified with Au displayed outstanding NO 2 response at RT .…”

In situ construction of AFe2O4/Fe2O3 (A = Cd, Ca, Zn) array structures for selective detection of VOCs

“…30,31 In addition, in situ construction of heterogeneous structures on the sensor substrate will expose specific active crystalline surfaces, generating abundant active sites and providing smooth channels for electron transport, further accelerating electron transport. 32–36 Consequently, the construction of array materials with highly active crystalline planes and interfaces will greatly enhance the selectivity and sensitivity of the sensors.…”