Picture of wind turbine against blue sky

Open Access research with a real impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

The Energy Systems Research Unit (ESRU) within Strathclyde's Department of Mechanical and Aerospace Engineering is producing Open Access research that can help society deploy and optimise renewable energy systems, such as wind turbine technology.

Explore wind turbine research in Strathprints

Explore all of Strathclyde's Open Access research content

Spermine, spermidine and their analogues generate tailored silicas

Belton, D J and Patwardhan, S V and Perry, C C (2005) Spermine, spermidine and their analogues generate tailored silicas. Journal of Materials Chemistry, 15 (43). pp. 4629-4638. ISSN 0959-9428

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

Biosilicifying organisms such as diatoms, sponges and higher plants deposit ornate "glassy" siliceous materials with well defined properties such as particle size and porosity at precisely controlled growth rates. Here we present the in vitro synthesis and characterisation of "glassy" silica with tailored properties by using naturally occurring amines - spermidine and spermine - and their analogues. These additives were found to regulate the growth rates, particle sizes, maturation, surface areas, porosities and morphologies of the siliceous materials prepared. In particular, the combination of unique catalytic effects and aggregation behaviours that are dependent on or related to chain length, intramolecular N-N spacing and C : N ratio of the additives was found to be responsible for controlling materials properties. Mechanisms regulating the generation of silicas showing a range of material characteristics are proposed.