Issue 27, 2014

The role of boric acid in the synthesis of Eni Carbon Silicates

Abstract

The influence of H3BO3 on the crystallization of hybrid organic–inorganic aluminosilicates denoted as Eni Carbon Silicates (ECS's) was investigated. Syntheses were carried out at 100 °C under different experimental conditions, using bridged silsesquioxanes of general formula (EtO)3Si–R–Si(OEt)3 (R = –C6H4– (BTEB), –C10H6– (BTEN) and –C6H4–C6H4– (BTEBP)), in the presence of equimolar concentrations of NaAlO2 and H3BO3. The study, involving the synthesis of three different but structurally related phases (ECS-14 from BTEB, ECS-13 here described for the first time from BTEN, and ECS-5 from BTEBP), confirmed a catalytic role for H3BO3 which in general increased the crystallization rate and improved the product quality in terms of amount of crystallized phase (crystallinity), size of the crystallites and phase purity, while it was weakly incorporated in trace amounts in the framework of ECS's.

Graphical abstract: The role of boric acid in the synthesis of Eni Carbon Silicates

Supplementary files

Additions and corrections

Article information

Article type
Paper
Submitted
28 Mar 2014
Accepted
09 May 2014
First published
09 May 2014

Dalton Trans., 2014,43, 10617-10627

The role of boric acid in the synthesis of Eni Carbon Silicates

S. Zanardi, G. Bellussi, W. O. Parker Jr., E. Montanari, M. Bellettato, G. Cruciani, A. Carati, S. Guidetti, C. Rizzo and R. Millini, Dalton Trans., 2014, 43, 10617 DOI: 10.1039/C4DT00919C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements