Hybrid Polyoxotungstate/MIL-101 Materials: Synthesis, Characterization, and Catalysis of H2O2-Based Alkene Epoxidation | Sciact - CRIS-система Института катализа

Hybrid Polyoxotungstate/MIL-101 Materials: Synthesis, Characterization, and Catalysis of H2O2-Based Alkene Epoxidation Научная публикация

Журнал

Inorganic Chemistry
ISSN: 0020-1669 , E-ISSN: 1520-510X

Вых. Данные

Год: 2010, Том: 49, Номер: 6, Страницы: 2920-2930 Страниц : 11 DOI: 10.1021/ic902459f

Ключевые слова

METAL-ORGANIC FRAMEWORKS; HETEROPOLY ACID H3PW12O40; HYDROGEN-PEROXIDE; TUNGSTOPHOSPHORIC ACID; OXIDATION CATALYSTS; SELECTIVE EPOXIDATION; OLEFIN EPOXIDATION; TERMINAL OLEFINS; ALLYLIC ALCOHOLS; SILICA

Авторы

Maksimchuk Nataliya V. ¹ , Kovalenko Konstantin A. ² , Arzumanov Sergey S. ¹ , Chesalov Yurii A. ¹ , Melgunov Maxim S. ¹ , Stepanov Alexander G. ¹ , Fedin Vladimir P. ² , Kholdeeva Oxana A. ¹

Организации

1	Boreskov Institute of Catalysis, Lavrentiev Avenue 5, Novosibirsk, 630090, Russia
2	Nikolaev Institute of Inorganic Chemistry, Lavrentiev Avenue 3, Novosibirsk, 630090, Russia

Информация о финансировании (4)

1	Российский фонд фундаментальных исследований	09-03-12112
2	Российский фонд фундаментальных исследований	09-03-93109
3	Российский фонд фундаментальных исследований	09-03-93113
4	Сибирское отделение Российской академии наук	107

Polyoxotungstates [PW4O24]3− (PW4) and [PW12O40]3− (PW12) have been inserted into nanocages of the metal organic framework MIL-101. The hybrid materials PWx/MIL-101 (x = 4 or 12) containing 5−14 wt % of polyoxotungstate have been obtained and characterized by elemental analysis, N2 adsorption, FT-IR, Raman, and 31P NMR MAS spectroscopic techniques. Their catalytic performance was assessed in the selective oxidation of alkenes with aqueous hydrogen peroxide under mild reaction conditions ([H2O2] = 0.1−0.2 M, 50 °C, MeCN). PWx/MIL-101 enclosing 5 wt % of polyoxotungstate demonstrated fairly good catalytic activities in the epoxidation of various alkenes (3-carene, limonene, α-pinene, cyclohexene, cyclooctene, 1-octene), the turnover frequencies (TOF) and alkene conversions were close to the corresponding parameters achieved with homogeneous PWx. For the oxidation of substrates with aromatic groups (styrene, cis- and trans-stilbenes), a higher level of olefin conversion was attained using PW12/MIL-101. Moreover, confinement of PW12 within MIL-101 nanocages allowed us to reach higher epoxide selectivities at higher alkene conversions. The hybrid PWx/MIL-101 materials were stable to leaching, behaved as true heterogeneous catalysts, were easily recovered by filtration, and reused several times with the maintenance of the catalytic performance.

Maksimchuk N.V. , Kovalenko K.A. , Arzumanov S.S. , Chesalov Y.A. , Melgunov M.S. , Stepanov A.G. , Fedin V.P. , Kholdeeva O.A.
Hybrid Polyoxotungstate/MIL-101 Materials: Synthesis, Characterization, and Catalysis of H2O2-Based Alkene Epoxidation
Inorganic Chemistry. 2010. V.49. N6. P.2920-2930. DOI: 10.1021/ic902459f WOS Scopus РИНЦ CAPlusCA PMID OpenAlex

Поступила в редакцию:	11 дек. 2009 г.
Опубликована online:	18 февр. 2010 г.
Опубликована в печати:	15 мар. 2010 г.

Web of science:	WOS:000275164900044
Scopus:	2-s2.0-77949389624
РИНЦ:	15335659
Chemical Abstracts:	2010:213109
Chemical Abstracts (print):	152:381776
PMID (PubMed):	20166742
OpenAlex:	W1974312340

БД	Цитирований
Web of science	218
Scopus	241
РИНЦ	229
OpenAlex	233