Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

Explore

Factors governing the formation of porosity in metal loaded cellulose during pyrolysis and the effects of pore structure on reactivity in o-2 and no

Ruiz, W. and Gascon, D. and Hall, P.J. (2000) Factors governing the formation of porosity in metal loaded cellulose during pyrolysis and the effects of pore structure on reactivity in o-2 and no. Fuel, 79 (13). pp. 1565-1571. ISSN 0016-2361

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

Abstract

A series of carbons have been made from cellulose that has been loaded with varying amounts of calcium, potassium and iron. Small angle X-ray scattering showed that the calcium-loaded chars produced carbons with mass fractal properties whereas potassium loaded chars produce carbons with surface fractal properties in the mesopore region. Calcium loaded chars were more microporous than potassium loaded chars. Iron loaded cellulose produced a Small Angle X-Ray Scattering (SAXS) pattern with two linear regions. The high q-scattering was characteristic of a highly microporous material. Differences in carbon properties were attributed to crosslinking reactions induced by the metals during pyrolysis. The reactivity of the carbons in O-2 and NO was determined and the ratio of the reactivities, R(NO)/R(O-2) noted. It was found that the presence of calcium and potassium both decreased R(NO)/R(O-2), but iron increased R(NO)/R(O-2) for a certain loading range. The latter was attributed to the reduced catalytic activity of iron for O-2 gasification and the pore structure of the iron loaded carbons.