Titanium-Silica Catalyst Derived from Defined Metallic Titanium Cluster Precursor: Synthesis and Catalytic Properties in Selective Oxidations | Sciact - CRIS-система Института катализа

Titanium-Silica Catalyst Derived from Defined Metallic Titanium Cluster Precursor: Synthesis and Catalytic Properties in Selective Oxidations Научная публикация

Журнал

Inorganica Chimica Acta
ISSN: 0020-1693 , E-ISSN: 1873-3255

Вых. Данные

Год: 2018, Том: 470, Страницы: 393-401 Страниц : 9 DOI: 10.1016/j.ica.2017.06.059

Ключевые слова

Alkene epoxidation, Heterogeneous catalysis, Mesoporous silica, Oxidative carboxylation, Titanium clusters

Авторы

Evangelisti Claudio ¹ , Guidotti Matteo ¹ , Tiozzo Cristina ¹ , Psaro Rinaldo ¹ , Maksimchuk Nataliya ^2,3 , Ivanchikova Irina ² , Shmakov Alexandr N. ^2,3,4 , Kholdeeva Oxana ^2,3

Организации

1	Istituto di Scienze e Tecnologie Molecolari (CNR-ISTM), C. Golgi 19, 20133 Milano, Italy
2	Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk, 630090, Russia
3	Novosibirsk State University, Pirogova 2, Novosibirsk, 630090, Russia
4	Budker Institute of Nuclear Physics, Lavrentieva 11, Novosibirsk, 630090, Russia

Информация о финансировании (3)

1	Российский фонд фундаментальных исследований	15-33-20225
2	Федеральное агентство научных организаций России	0303-2016-0005
3	Министерство образования и науки Российской Федерации

A class of titanium-grafted mesoporous silica catalysts has been designed and prepared starting from molecularly defined metal clusters. The organosol mixture of zerovalent Ti13 clusters was impregnated onto the surface of ordered mesoporous silica molecular sieves (MCM-41 and MMM-2) and, after high-temperature calcination, an evenly dispersed non-single-site Ti(IV)nOx-like silica-supported catalyst was obtained. The catalytic solids, fully characterized by microscopic, spectroscopic and porosimetric techniques, showed standard performance in the liquid-phase epoxidation of a cyclic alkene, as limonene, but remarkably high selectivity values in the oxidative carboxylation of styrene, with tert-butylhydroperoxide and carbon dioxide in the presence of tetrabutylammonium bromide as a cocatalyst. Unprecedented high yields, up to 67%, in styrene carbonate were achieved after 24 h, under solvent-free conditions. The catalysts displayed also a noteworthy stability of the performance to repeated recovery and reuse cycles.

Evangelisti C. , Guidotti M. , Tiozzo C. , Psaro R. , Maksimchuk N. , Ivanchikova I. , Shmakov A.N. , Kholdeeva O.
Titanium-Silica Catalyst Derived from Defined Metallic Titanium Cluster Precursor: Synthesis and Catalytic Properties in Selective Oxidations
Inorganica Chimica Acta. 2018. V.470. P.393-401. DOI: 10.1016/j.ica.2017.06.059 WOS Scopus РИНЦ CAPlus OpenAlex

Поступила в редакцию:	21 апр. 2017 г.
Принята к публикации:	27 июн. 2017 г.
Опубликована online:	5 июл. 2017 г.
Опубликована в печати:	1 янв. 2018 г.

Web of science:	WOS:000416060300049
Scopus:	2-s2.0-85024501978
РИНЦ:	31048879
Chemical Abstracts:	2017:1192211
OpenAlex:	W2733787725

БД	Цитирований
Web of science	9
Scopus	12
РИНЦ	9
OpenAlex	10