The “Direct” Synthesis of Trialkoxysilanes: New Data for Understanding the Processes of the Copper-Containing Active Sites Formation During the Activation of the Initial Silicon Based Contact Mass | Sciact - CRIS-system of Boreskov Institute of Catalysis

The “Direct” Synthesis of Trialkoxysilanes: New Data for Understanding the Processes of the Copper-Containing Active Sites Formation During the Activation of the Initial Silicon Based Contact Mass Full article

Journal

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

Output data

Year: 2016, Volume: 338, Pages: 143-153 Pages count : 11 DOI: 10.1016/j.jcat.2016.03.012

Tags

Active sites formation, Copper catalyst, Direct synthesis, Mechanism of active sites formation, Silane, Silicon

Authors

Adonin Nicolay Yu. ^1,2 , Prikhodʹko Sergey A. ^1,2 , Shabalin Anton Yu. ¹ , Prosvirin Igor P. ^1,2 , Zaikovskii Vladimir I. ^1,2 , Kochubey Dmitry I. ¹ , Zyuzin Dmitry A. ¹ , Parmon Valentin N. ¹ , Monin Evgeny A. ³ , Bykova Irina A. ³ , Martynov Petr O. ³ , Rusakov Sergey L. ³ , Storozhenko Pavel A. ³

Affiliations

1	G.K. Boreskov Institute of Catalysis SB RAS, Acad. Lavrentjev Ave. 5, Novosibirsk 630090, Russian Federation
2	Novosibirsk State University, Pirogova Str., 2, Novosibirsk 630090, Russian Federation
3	The State Scientific Center of the Russian Federation ‘‘State Research Institute for Chemistry and Technology of Organoelement Compounds”, Shosse Entuziastov, 38, Moscow 111123, Russian Federation

Funding (1)

Russian Foundation for Basic Research

13-03-12246

The paper presents comprehensive studies on the process of the copper-containing active sites formation which are needed for the “direct” synthesis of trialkoxysilanes at the interaction of alcohols with a silicon-based contact mass. These sites are formed during a two step consequent pretreatment of the initial contact mass by hydrogen and argon flow. The so activated samples of contact mass were investigated using HAADF-STEM EDX, EXAFS, XPS and XRD methods. The role of each step of the activation is disclosed. Participation of topochemical and heterogeneous chemical reactions as well as processes of diffusion and sorption–desorption during the active sites formation was found. Based on the retrieved data a new mechanism for the formation of the active sites on the surface of silicon during the activation of the contact mass for the “direct” synthesis of trialkoxysilanes is suggested.

Adonin N.Y. , Prikhodʹko S.A. , Shabalin A.Y. , Prosvirin I.P. , Zaikovskii V.I. , Kochubey D.I. , Zyuzin D.A. , Parmon V.N. , Monin E.A. , Bykova I.A. , Martynov P.O. , Rusakov S.L. , Storozhenko P.A.
The “Direct” Synthesis of Trialkoxysilanes: New Data for Understanding the Processes of the Copper-Containing Active Sites Formation During the Activation of the Initial Silicon Based Contact Mass
Journal of Catalysis. 2016. V.338. P.143-153. DOI: 10.1016/j.jcat.2016.03.012 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Feb 3, 2016
Accepted:	Mar 10, 2016
Published online:	Mar 21, 2016
Published print:	Jun 1, 2016

Web of science:	WOS:000376695500015
Scopus:	2-s2.0-85015618977
Elibrary:	31031582
Chemical Abstracts:	2016:435133
OpenAlex:	W2306958893

DB	Citing
Web of science	21
Scopus	24
Elibrary	22
OpenAlex	25