Active Phases of Supported Cobalt Catalysts for 2,3-Dihydrofuran Synthesis | Sciact

Active Phases of Supported Cobalt Catalysts for 2,3-Dihydrofuran Synthesis Научная публикация

Журнал

Journal of Molecular Catalysis A: Chemical
ISSN: 1381-1169

Вых. Данные

Год: 2004, Том: 215, Номер: 1-2, Страницы: 95-101 Страниц : 7 DOI: 10.1016/j.molcata.2003.11.036

Авторы

Leite Ludmila ¹ , Stonkus Vladislavs ¹ , Edolfa Kristine ¹ , Ilieva Luba ² , Andreeva Donka ² , Plyasova Ludmila ³ , Sobczak Janusz W. ⁴ , Ionescu Sorana ⁵ , Munteanu Gabriel ⁵

Организации

1	Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
2	Institute of Catalysis, Bulgarian Academy of Sciences, 1113 Sofija, Bulgaria
3	Boreskov Institute of Catalysis, Russian Academy of Sciences Siberian Division, 5 Acad. Lavrentjev Str., Novosibirsk, 630090, Russia
4	Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52 Str., 01-224 Warszawa, Poland
5	Romanian Academy Institute of Physical Chemistry “I.G. Murgulescu”, 202 Splaiul Independentei St., 77208-Bucharest, Romania

Dehydrogenation of 1,4-butanediol to 2,3-dihydrofuran over kaolin-supported Co and Co–Au catalysts has been investigated. Catalytic test and XRD analysis show that the presence of metallic cobalt with hexagonal structure is favourable for selectivity to 2,3-dihydrofuran of the reaction studied. It was established by XPS method that an optimal for the reaction selectivity Co0/Co2+ ratio in Co/kaolin and Co–Au/kaolin catalysts exists. Quantum chemical calculations suggest that the initial step of 1,4-butanediol dehydrogenation on cobalt catalyst surface may be the cleavage of OH bond to form alkoxide species on Co2+ ion. Based on the effect of metallic and ionic cobalt on the catalyst selectivity, it could be presumed that both cobalt species are involved in the rate-determining step in dehydrogenation of 1,4-butanediol into 4-hydroxybutanal intermediate.

Leite L. , Stonkus V. , Edolfa K. , Ilieva L. , Andreeva D. , Plyasova L. , Sobczak J.W. , Ionescu S. , Munteanu G.
Active Phases of Supported Cobalt Catalysts for 2,3-Dihydrofuran Synthesis
Journal of Molecular Catalysis A: Chemical. 2004. V.215. N1-2. P.95-101. DOI: 10.1016/j.molcata.2003.11.036 WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact

Поступила в редакцию:	24 окт. 2003 г.
Принята к публикации:	11 нояб. 2003 г.
Опубликована online:	16 мар. 2004 г.
Опубликована в печати:	14 июн. 2004 г.

Web of science:	WOS:000221512600012
Scopus:	2-s2.0-1942436181
РИНЦ:	13455357
Chemical Abstracts:	2004:346388
Chemical Abstracts (print):	141:123308
OpenAlex:	W2035236649
Sciact:	9911

БД	Цитирований
Scopus	11
OpenAlex	12