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Effect of the Type of Silicon Source on the Physicochemical and Catalytic Properties of Mesoporous Silicoaluminophosphate Molecular Sieves Научная публикация

Журнал Petroleum Chemistry
ISSN: 0965-5441 , E-ISSN: 1531-8532
Вых. Данные Год: 2016, Том: 56, Номер: 3, Страницы: 244-252 Страниц : 9 DOI: 10.1134/S096554411603004X
Ключевые слова mechanism of incorporation of isomorphically substituting elements, SAPO-31, silicoaluminophosphates
Авторы Echevsky G.V. 1 , Weixing Qi 2 , Toktarev A.V. 1 , Wu W. 2
Организации
1 Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2 Heilungjiang University, Harbin, People’s Republic of China

Информация о финансировании (1)

1 Министерство образования и науки Российской Федерации 14.613.21.0001 (RFMEFI61314X0001)

Реферат: Silicoaluminophosphates with the ATO structure have been synthesized using two types of silicon source (metakaolin and silica sol). To determine the composition, morphology, and acid properties, SAPO 31 samples have been characterized by various methods. It has been found that the samples synthesized using different silica sources have very different properties. Samples of SAPO31 synthesized with metakaolin have a higher acidity and are more active in the catalytic hydroisomerization of ndecane as compared with their counterparts prepared with silica sol. The difference in the effect of the type of silicon source has been explained by morphological features of silica particles formed during the dissolution of silicon source (spher ical particles of a ~10 nm size in the case of silica sol and nanoplates of a ~1 nm size in the case of metakaolin). On the basis of data on the enhancement of acidic properties in the SAPO31 samples with an increase in sil icon concentration therein, it has been doubted that the SM3 mechanism of incorporation of Si atoms into the aluminophosphate ATO framework really operates (in any of its form). It has been shown that the SM2 mechanism alone operates instead, involving the independent formation of regions with an aluminosilicate composition.
Библиографическая ссылка: Echevsky G.V. , Weixing Q. , Toktarev A.V. , Wu W.
Effect of the Type of Silicon Source on the Physicochemical and Catalytic Properties of Mesoporous Silicoaluminophosphate Molecular Sieves
Petroleum Chemistry. 2016. V.56. N3. P.244-252. DOI: 10.1134/S096554411603004X WOS Scopus РИНЦ CAPlus OpenAlex
Оригинальная: Ечевский Г.В. , Weixing Q. , Токтарев А.В. , Wu W.
Влияние природы источника кремния на физико-химические и каталитические свойства среднепористых силикоалюмофосфатных молекулярных сит
Нефтехимия. 2016. Т.56. №3. С.262-270. DOI: 10.7868/S0028242116030047 РИНЦ OpenAlex
Даты:
Поступила в редакцию: 16 нояб. 2015 г.
Опубликована в печати: 1 мар. 2016 г.
Опубликована online: 22 мая 2016 г.
Идентификаторы БД:
Web of science: WOS:000376602600009
Scopus: 2-s2.0-84971260311
РИНЦ: 27159833
Chemical Abstracts: 2016:861383
OpenAlex: W2408307749
Цитирование в БД:
БД Цитирований
Web of science 4
Scopus 6
РИНЦ 3
OpenAlex 6
Альметрики: