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Open Access research that is better understanding work in the global economy...

Strathprints makes available scholarly Open Access content by researchers in the Department of Work, Employment & Organisation based within Strathclyde Business School.

Better understanding the nature of work and labour within the globalised political economy is a focus of the 'Work, Labour & Globalisation Research Group'. This involves researching the effects of new forms of labour, its transnational character and the gendered aspects of contemporary migration. A Scottish perspective is provided by the Scottish Centre for Employment Research (SCER). But the research specialisms of the Department of Work, Employment & Organisation go beyond this to also include front-line service work, leadership, the implications of new technologies at work, regulation of employment relations and workplace innovation.

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EPR characterisation of platinum nanoparticle functionalised CNT hybrid materials

Dennany, Lynn and Sherrell, Peter and Chen, Jun and Innis, Peter C. and Wallace, Gordon G. and Minett, Andrew I., Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, University of Wollongong, Australia (2010) EPR characterisation of platinum nanoparticle functionalised CNT hybrid materials. Physical Chemistry Chemical Physics, 12. pp. 4135-4141. ISSN 1463-9076

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Abstract

The use of nanostructured carbon materials as electrodes for energy storage and conversion is an expanding area of research in recent years. Herein, Platinum nanoparticles have been deposited onto both multi-walled and single-walled carbon nanotubes via a microwave assisted polyol reduction method. This interaction has been probed with electron paramagnetic resonance (EPR) and Raman spectroscopies to elucidate the charge/electron transfer interactions between the Pt nanoparticles and the CNTs. Observed shifts in the g factors of the CNTs are indicative of such an electronic interactions, suggesting covalent attachment of the nanoparticles with the carboxylic groups on the CNTs, formed during the microwave-assisted reduction process. The Pt decorated CNTs show a dramatic increase in electrochemical behaviour in terms of high reversible capacity and relatively stable cycle performance compared to unmodified CNTs increasing their applicability in energy storage devices. For instance, significant increases in the electrochemical double layer capacitance is observed for the CNT-NP composite electrode (80 % for SWNTs and 50 % for MWNT).