Fe-doped NiO, a type of p-type gas sensor, has received wide attention for its low cost, environmentally friendliness and excellent gas-sensing performance. However, the operating temperature of Fe-doped NiO is too high (300 degrees C-500 degrees C). This study attempts to investigate the possibility of Fe-doped NiO working in relatively low temperature regions. A type of NiO nanofoam assembled by porous nanosheets was synthesized through a normal pressure microwave solvent thermal method by a domestic microwave oven, and Fe doping with different doping concentrations was investigated systemat...
