Nanostructured NiO Thin Film for Ammonia Sensing at Elevated Temperatures

A room-temperature gas sensor based on 2D Ni–Co–Zn ternary oxide nanoflakes for selective and sensitive ammonia detection

“…This sensor revealed an acceptable response towards 5 ppm NH 3 at an operating temperature of 150 °C. 18 Hu et al prepared a core-shell Co 3 O 4 -CoFe 2 O 4 hetero-junction composite with an abundant mesoporous structure using a thermolysis process. The sensor displayed a response of 35 towards 100 ppm NH 3 at an operating temperature of 220 °C.…”