Effect of adsorbed polyaniline on the thermal stability of iron and arsenic oxides

Química Nova

Robson Fernandes De Farias¹ 

[1] ,Universidade Federal de Roraima Departamento de Química Boa Vista RO

关键词: polyaniline;    thermal degradation;    oxide;   

DOI  :  10.1590/S0100-40422000000300006

来源: SciELO

【 摘 要 】

Iron and arsenic oxide grains are coated with the conducting organic polymer polyaniline. The obtained samples were characterized by infrared spectroscopy, SEM, conducting measurements and thermogravimetry. The thermal stability of both oxides are increased. For As2O3 the sublimation temperature is increased from 165ºC in the pure oxide to 206ºC in the polymer modified sample. The pure Fe3O4 sample exhibits sublimation at 780ºC whereas the polyaniline coated oxide is stable until at least 1000ºC.

【 授权许可】

CC BY-NC   
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