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Formation of a Supported Cobalt Catalyst for the Synthesis of Carbon Nanofibers on Aluminum Oxide Научная публикация

Общее Язык: Английский, Жанр: Статья (Full article),
Статус опубликования: Опубликована, Оригинальность: Переводная
Журнал Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210
Вых. Данные Год: 2010, Том: 51, Номер: 3, Страницы: 449-455 Страниц : 7 DOI: 10.1134/S0023158410030195
Авторы Kovalenko G.A. 1,2 , Rudina N.A. 1 , Perminova L.V. 1 , Skrypnik O.V. 2
Организации
1 Институт катализа им. Г.К. Борескова СО РАН
2 Новосибирский национальный исследовательский государственный университет

Реферат: Comparative studies of the effect of the physicochemical characteristics of a support (aluminum oxide) on the formation of a supported Co catalyst and its activity in the pyrolysis of alkanes (propane-butane) were performed. The effect of the crystalline modification of alumina on the yield of catalytic filamentous carbon (CFC) ((g CFC)/(g Co)) was studied. The surface morphologies of Co-containing catalysts and synthesized carbon deposits were studied by scanning electron microscopy. It was found that carbon deposits with a well-defined nanofiber structure were synthesized by the pyrolysis of a propane-butane mixture in the presence of hydrogen at 600°C on supported Co catalysts prepared by homogeneous precipitation on macroporous corundum (α-Al2O3). The yield of CFC was no higher than 4 (g CFC)/(g Co). On the Co catalyst prepared by homogeneous precipitation on mesoporous Al2O3, the intense carbonization of the initial support; the formation of cobalt aluminates; and, as a consequence, the deactivation of Co0 as a catalyst of FC synthesis occurred. The dependence of the yield of CFC on the preheating temperature (from 200 to 800°C) of Co catalysts before pyrolysis was studied. It was found that, as the preheating temperature of supported Co/Al2O3 catalysts was increased, the amount of synthesized carbon, including CFC, decreased because of Co0 deactivation due to the interaction with the support and coke formation.
Библиографическая ссылка: Kovalenko G.A. , Rudina N.A. , Perminova L.V. , Skrypnik O.V.
Formation of a Supported Cobalt Catalyst for the Synthesis of Carbon Nanofibers on Aluminum Oxide
Kinetics and Catalysis. 2010. V.51. N3. P.449-455. DOI: 10.1134/S0023158410030195 WOS Scopus РИНЦ
Оригинальная версия: Коваленко Г.А. , Рудина Н.А. , Перминова Л.В. , Скрыпник О.В.
Формирование нанесенного Co-катализатора для синтеза углеродных нановолокон на оксиде алюминия
Кинетика и катализ. 2010. Т.51. №3. С.468-475. РИНЦ
Даты:
Поступила в редакцию: 18 февр. 2009 г.
Опубликована в печати: 1 июн. 2010 г.
Опубликована online: 24 июн. 2010 г.
Идентификаторы:
Web of science WOS:000281104600019
Scopus 2-s2.0-77955731551
РИНЦ 15329174
Chemical Abstracts 2010:788073
Chemical Abstracts (print) 153:270579
Альметрики: