γ-Fe2O3超微粉的制备及气敏掺杂效应

Preparation ofγ-Fe2O3 ultrafine powders and doping effect of gas sensitivity

    摘要
  • 摘要: 介绍了近年来γ-Fe2O3超微粉在制备方法上的新,以及用作气敏材料时，通过掺杂不同化合物以提高其相变温度和气敏性等。

     

    Abstract: The preparation methods of γ-Fe2O3 ultrafine powders in recent years are summarized. The mechanisms for improving gas-sensing properties and increasing the temperature of phase transition by doping different chemical compounds are described when γ-Fe2O3 is used as gas-sensing materials.

     

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