Preparation and Gas－Sensing Properties of NdFeO3 Nanocrystalline
摘要
With the Nd2O3, Fe(NO3)3·9H2O, nitric acid(1∶1 vloume fraction) for the starting materials, rare earth composite oxide NdFeO3 with the structure of perovskite type was synthesized by sol-gel method in the system of citric acid. Structural characteristics were characterized by XRD and TEM which indicate that the sample is nanocrystallite with uniform grain size distribution and the a verage grain size is about 28 nm. Moreover, the gas sensing properties of the material were tested. The results show that NdFeO3 sensors have high sensitivity, excellent selectivity and quick response and recovery behavior to H2S, hence, this gas sensing material has a better prospects in industrial practice.
引用本文（GB/T 7714）
牛新书, 杜卫民, 杜卫平, 等. Preparation and Gas－Sensing Properties of NdFeO3 Nanocrystalline[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2003.
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