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Название: Solution Transformation of the Products of AC Electrochemical Metal Oxidation
Авторы: Usoltseva, Natalia Vasilievna
Korobochkin, Valery Vasilievich
Balmashnov, Mikhail Aleksandrovich
Dolinina, Alesya Sergeevna
Ключевые слова: электролиз; оксид меди; оксид алюминия; хлорид натрия; дифракция; рентгеновские излучения; ИК-спектры
Дата публикации: 2015
Издатель: Elsevier
Библиографическое описание: Solution Transformation of the Products of AC Electrochemical Metal Oxidation / N. V. Usoltseva [et al.] // Procedia Chemistry. — 2015. — Vol. 15 : Chemistry and Chemical Engineering in XXI century (CCE 2015) : XVI International Scientific Conference dedicated to Professor L.P. Kulyov, 25-29 May 2015, Tomsk, Russia. — [P. 84-89].
Аннотация: Electrochemical oxidation of copper and aluminium using alternating current of industrial frequency results in the formation of non-equilibrium products. Their transformations during the ageing in sodium chloride solutions of different concentrations have been considered. According to X-Ray diffraction confirmed by TG/DSC/DTG analysis, irrespective of solution concentration, the ageing products consist of aluminium oxyhydroxide (boehmite, AlOOH), copper-aluminium carbonate hydroxide hydrate (Cu-Al/LDH) and copper chloride hydroxide (Cu[2](OH)[3]Cl). The increase of the solution concentration leads to Cu[2](OH)[3]Cl formation and makes difficulties for metal oxide carbonization to Cu-Al/LDH. Ageing in highly diluted solution contributes not only to Cu-Al/LDH formation but also boehmite hydration that is verified by IR-spectra. The pore structure characteristics have been also discussed. They do not significantly depend on phase composition and vary in ranges of 161.2-172.6 m{2}/g (specific surface areas), 0.459-0.535 cm{2}/g (total pore volumes). Pore size distributions reveal that a pore structure is predominantly formed by pore with the sizes from 3 to 22°nm; 3.6°nm is the size of pores with the largest pore volume.
URI: http://earchive.tpu.ru/handle/11683/14875
Располагается в коллекциях:Материалы конференций

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