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Nanometer NdFeO_3 powder was prepared by decomposing a precursor Nd[Fe(CN)_6]·4H_2O, which was synthesized by coordination precipitation at room temperature. Its crystal structure, particle size and ceramic microstructure were characterized by X-ray diffraction (XRD) and transition electron microscopy (TEM). The results show that the nanometer NdFeO_3 powder is highly crystallized, with good dispersion and small diameter. The decomposing mechanism of the precursor was investigated by analyzing TG-DSC curves. Furthermore, the gas sensing properties of NdFeO_3 were tested in static state. It is shown that the gas sensor based on NdFeO_3 nanopowder shows remarkable sensitivity to C_2H_5OH.
Nanometer NdFeO_3 powder was prepared by decomposing a precursor Nd [Fe (CN) _6] · 4H_2O, which was synthesized by coordination precipitation at room temperature. Its crystal structure, particle size and ceramic microstructure were characterized by X-ray diffraction (XRD) and transition electron microscopy (TEM). The results show that the nanometer NdFeO 3 powder is highly crystallized, with good dispersion and small diameter. The decomposing mechanism of the precursor was investigated by analyzing TG-DSC curves. tested in static state. It shows shown the the gas sensor based on NdFeO_3 nanopowder shows remarkable sensitivity to C_2H_5OH.