Titanium-Silica Catalyst Derived from Defined Metallic Titanium Cluster Precursor: Synthesis and Catalytic Properties in Selective Oxidations | Sciact - CRIS-system of Boreskov Institute of Catalysis

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

Journal

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

Output data

Year: 2018, Volume: 470, Pages: 393-401 Pages count : 9 DOI: 10.1016/j.ica.2017.06.059

Tags

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

Authors

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

Affiliations

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

Funding (3)

1	Russian Foundation for Basic Research	15-33-20225
2	Federal Agency for Scientific Organizations	0303-2016-0005
3	The Ministry of Education and Science of the Russian Federation

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 AN OpenAlex

Submitted:	Apr 21, 2017
Accepted:	Jun 27, 2017
Published online:	Jul 5, 2017
Published print:	Jan 1, 2018

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

DB	Citing
Web of science	10
Scopus	12
Elibrary	9
OpenAlex	10