Regularities of thermolysis for the Fe(II), Co(II), and Ni(II) salts of maleic and ortho-phthalic acids with the formation of metal/polymer composites
| Autor: | N. A. Rudina, Arcady V. Ishchenko, L. I. Yudanova, Vladimir A. Logvinenko, L. A. Sheludyakova, I. V. Korol’kov |
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| Rok vydání: | 2017 |
| Předmět: |
General Chemical Engineering
Thermal decomposition Inorganic chemistry Oxide chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Metal Phthalic acid chemistry.chemical_compound Nickel Transition metal chemistry visual_art Polymer chemistry visual_art.visual_art_medium 0210 nano-technology Carbon Cobalt |
| Zdroj: | Russian Journal of Coordination Chemistry. 43:446-452 |
| ISSN: | 1608-3318 1070-3284 |
| Popis: | Regularities of the thermolysis of acidic salts of unsaturated (maleic) [M(H2O)4(C4H3O4)2] and aromatic (ortho-phthalic) [M(H2O)6](C8H5O4)2 (M = Fe(II), Co(II), and Ni(II)) acids are established. The thermolysis of both maleates and phthalates can conventionally be divided into three stages. The onset decomposition temperature of the maleates is insignificantly higher than that of the phthalates for the salts of similar metals. The onset dehydration temperature increases in the series of the acidic transition metal maleates and phthalates Fe Co > Ni. Composites consisting of a metal, an organic polymer, and amorphous carbon are the thermolysis products of both maleates and phthalates in a helium flow. The composites with iron and cobalt in the polymer contain nanosized metal particles and oxide nanoparticles, whose content increases in the composites obtained by the decomposition of phthalates, whereas only metal nanoparticles are observed in the composite with nickel. The compositions and structures of the carbon/polymer matrix differ in these composites. |
| Databáze: | OpenAIRE |
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