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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.

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The effects of electrochemical hydrogenation on coal structure: chemical and macromolecular changes

Galan, C. and Berlouis, L.E.A. and Hall, P.J. (2000) The effects of electrochemical hydrogenation on coal structure: chemical and macromolecular changes. Fuel, 79 (12). pp. 1431-1438. ISSN 0016-2361

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Abstract

A set of five coals have been electrochemically hydrogenated and changes to the chemical structure were monitored by elemental analysis and NMR. It was thought that the elemental analysis gave spurious results due to possible hydrogen trapping. The NMR clearly showed a decrease in aromatic material and the creation of aliphatics. Changes to the macromolecular structure following hydrogenation were monitored by measuring changes in: the amount of pyridine soluble material; the amount of volatile material; decrease in glass transition temperatures; and in solvent swelling. The increase in the amount of aliphatic material correlated well with the change in the amount of soluble material and decrease in glass transition temperature. A less perfect correlation was noted between the amount of aliphatic material and the amount of volatile material and no correlation was noted between increase in aliphatics and solvent swelling.