纳米氧化镧对吸收药热分解的催化作用

Effect of nanometer-sized lanthanum oxide on catalyzing decomposition of absorbent powder

研究了纳米氧化镧对吸收药 (硝化棉吸收硝化甘油的混合物 ,NC/NG)热分解反应的催化作用 ,并提出了形成过渡态配合物的反应机理。实验结果表明 ,纳米氧化镧能有效地催化吸收药的热分解。

Nanometer sized lanthanum oxide was synthesized at room temperature by humid solid state reaction.The particles were characterized by scanning electron microscope and X ray diffraction.The effect of nanometer sized lanthanum oxide on catalyzing thermal decomposition reaction of absorbent powder (nitrocellulose absorbed nitroglycerine,NC/NG) was studied by DSC.The experimental results showed that nanometer sized lanthanum oxide could catalyze the decomposition reaction of NC/NG effectively.The mechanism involving transitional coordination compound of this catalytic reaction was proposed.