Effect of adsorbed polyaniline on the thermal stability of iron and arsenic oxides
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...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2000-06-01
|
| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422000000300006 |
| _version_ | 1818952021505474560 |
|---|---|
| author | Robson Fernandes de Farias |
| author_facet | Robson Fernandes de Farias |
| author_sort | Robson Fernandes de Farias |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-20T09:43:45Z |
| format | Article |
| id | doaj.art-11a36a606635422a82a5b6c6a6c258da |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-12-20T09:43:45Z |
| publishDate | 2000-06-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-11a36a606635422a82a5b6c6a6c258da2022-12-21T19:44:48ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642000-06-0123331331510.1590/S0100-40422000000300006Effect of adsorbed polyaniline on the thermal stability of iron and arsenic oxidesRobson Fernandes de FariasIron 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422000000300006polyanilinethermal degradationoxide |
| spellingShingle | Robson Fernandes de Farias Effect of adsorbed polyaniline on the thermal stability of iron and arsenic oxides Química Nova polyaniline thermal degradation oxide |
| title | Effect of adsorbed polyaniline on the thermal stability of iron and arsenic oxides |
| title_full | Effect of adsorbed polyaniline on the thermal stability of iron and arsenic oxides |
| title_fullStr | Effect of adsorbed polyaniline on the thermal stability of iron and arsenic oxides |
| title_full_unstemmed | Effect of adsorbed polyaniline on the thermal stability of iron and arsenic oxides |
| title_short | Effect of adsorbed polyaniline on the thermal stability of iron and arsenic oxides |
| title_sort | effect of adsorbed polyaniline on the thermal stability of iron and arsenic oxides |
| topic | polyaniline thermal degradation oxide |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422000000300006 |
| work_keys_str_mv | AT robsonfernandesdefarias effectofadsorbedpolyanilineonthethermalstabilityofironandarsenicoxides |