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Details of Grant 

EPSRC Reference: GR/R68078/01
Title: Composites of carbon nanotubes and conducting polymers: electrochemical production and application in high power energy storage devices
Principal Investigator: Chen, Professor GZ
Other Investigators:
Shaffer, Professor M Fray, Professor D
Researcher Co-Investigators:
Project Partners:
Department: Materials Science & Metallurgy
Organisation: University of Cambridge
Scheme: Standard Research (Pre-FEC)
Starts: 11 November 2002 Ends: 31 December 2003 Value (£): 202,457
EPSRC Research Topic Classifications:
Electronic Devices & Subsys. Energy Storage
Materials Processing Materials Synthesis & Growth
EPSRC Industrial Sector Classifications:
Energy Electronics
Related Grants:
Panel History:  
Summary on Grant Application Form
The investigators have recenty developed a novel electrochemical method for preparing redox active composite films of ionised carbon nanotubes and electronically conducting polymers (CNT-ECP) in aqueous solution. These porous films exhibited a higher electrochemical capacitance per unit geometric area than the current state of the art films containing pure CNTs or pure ECPs. The proposed research aims at optimising the electrochemical capacitance of the composite films through careful selection of CNTs and ECP, and manipulation of the electropoymerisation conditions. Depending on growth conditions and subsequent treatment, CNTs can be curved or straight, long or short, single or multi-walled, and have different surface chemistries. The choice of ECP will vary between simple choices such as as poypyrrole, poly-3-methylthiophine, or poyaniine, and functiionalised ones, for example those bearing independent redox active groups (eg quinones and ferrocenes). We will optimise the existing aqueous technique and attempt to extend the approach to organic solutions which offer greater choice of ECP. Prototype supercapadtors will be developed during the course of this program with the aim of demonstrating a useful worfdng device and attracting Interest in further commercial development. Mechanisms of composite formation and charge storage will be studied by both material and electrochemical means.
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Organisation Website: http://www.cam.ac.uk