Peculiarities of polythermic decomposition of iron, cobalt and nickel oxalates within pores of photonic crystals based on SiO(2) in atmosphere with oxygen lackстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Iron(II), cobalt(II) and nickel(II) oxalates were synthesized as nanofractals inside the voids of the photonic crystals based on SiO(2). Guest substances undergone polythermic decomposition within the pores of the photonic crystals in helium atmosphere containing of oxygen traces (similar to 1Pa) under static conditions. Pyrolysis of Fe(COO)(2)center dot 2H(2)O, CO(COO)(2)center dot(2)H,O and Ni(COO)(2)center dot 2H(2)O studied by TG and DSC techniques results in the formation of the metal oxides. The nanoparticles of Fe(2)O(3), COO (Co(3)O(4)) and NiO populated the interspheric voids of the photonic crystals exhibited no ferromagnetic effects indicating that no metallic inclusions were formed in helium in the presence of O(2) traces. The exothermic effect was observed by the thermal decomposition of the cobalt(II) oxalate only under oxygen lack.