Co-Containing Polyoxometalate-Based Heterogeneous Catalysts for the Selective Aerobic Oxidation of Aldehydes under Ambient Conditions | Sciact - CRIS-система Института катализа

Co-Containing Polyoxometalate-Based Heterogeneous Catalysts for the Selective Aerobic Oxidation of Aldehydes under Ambient Conditions Научная публикация

Журнал

Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694

Вых. Данные

Год: 2004, Том: 226, Номер: 2, Страницы: 363-371 Страниц : 9 DOI: 10.1016/j.jcat.2004.05.032

Ключевые слова

Aerobic oxidation, Aldehyde, Cobalt, Supported polyoxometalates

Авторы

Kholdeeva O.A. ¹ , Vanina M.P. ¹ , Timofeeva M.N. ¹ , Maksimovskaya R.I. ¹ , Trubitsina T.A. ¹ , Melgunov M.S. ¹ , Burgina E.B. ¹ , Mrowiec-Bialon J. ² , Jarzębski A. ² , Hill C.L. ³

Организации

1	Boreskov Institute of Catalysis, Pr. Ac. Lavrentieva 5, Novosibirsk 630090, Russia
2	Polish Academy of Sciences, Institute of Chemical Engineering, 44-100 Gliwice, Baltycka 5, Poland
3	Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, GA 30322, USA

Информация о финансировании (1)

Civilian Research and Development Foundation

RC1-2371-NO-02

Tetra-n-butylammonium (TBA) salts of the cobalt-monosubstituted Keggin polyoxometalate (Co-POM), TBA4HPW11CoO39 (I) and TBA5PW11CoO39 (II), have been prepared and characterized by using elemental analysis, potentiometric titration, IR, UV–vis, 31P NMR, and cyclic voltammetry. Different modes of heterogenization of the Co-POM, including anchoring to both NH2- and NH3+-modified mesoporous silica surfaces and sol–gel synthesis, have been performed. The resulting solid catalysts were characterized by N2-adsorption measurements, elemental analysis, DR-UV–vis, and FT-IR spectroscopy. The activity of the solid Co-POM materials to catalyze aerobic oxidation of two representative aldehydes, isobutyraldehyde (IBA) in MeCN and formaldehyde in H2O under mild conditions (20–40 °C, 1 atm of air), was assessed and compared with the catalytic activity of the corresponding homogeneous Co-POMs. An emphasis has been placed on leaching tests and catalyst recycling. The effect of protonation of the amine-modified silica surface or the Co-POM on the loading, stability, and activity of the Co-POM solid catalyst was evaluated.

Kholdeeva O.A. , Vanina M.P. , Timofeeva M.N. , Maksimovskaya R.I. , Trubitsina T.A. , Melgunov M.S. , Burgina E.B. , Mrowiec-Bialon J. , Jarzębski A. , Hill C.L.
Co-Containing Polyoxometalate-Based Heterogeneous Catalysts for the Selective Aerobic Oxidation of Aldehydes under Ambient Conditions
Journal of Catalysis. 2004. V.226. N2. P.363-371. DOI: 10.1016/j.jcat.2004.05.032 WOS Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	22 мар. 2004 г.
Принята к публикации:	29 мая 2004 г.
Опубликована online:	8 июл. 2004 г.
Опубликована в печати:	1 сент. 2004 г.

Web of science:	WOS:000223278100012
Scopus:	2-s2.0-3442888829
РИНЦ:	13461390
Chemical Abstracts:	2004:626217
Chemical Abstracts (print):	141:306374
OpenAlex:	W2010938048

БД	Цитирований
Web of science	95
Scopus	100
РИНЦ	98
OpenAlex	98