文档介绍：FUNCTIONALIZED CARBON NANOTUBES AND ANODE DEGRADATION IN HIGH TEMPERATURE PEM FUEL CELLS
A. Orfanidi, M. K. Daletou, S. G. Neophytides
Foundation of Research and Technology Hellas-Institute of Chemical Engineering and High Temperature Processes
Stadiou Str, Platani Rion, Patras 26504, Greece
Fax: +302610965223; Tel: +302610965265, E-mail:******@
Introduction
The present work deals with a study towards the development of new Pt electrocatalysts supported T with increased catalyst utilization for application in PEMFCs. Carbon nanotubes (CNTs) [1], single (Ts) or multi walled (Ts) have attracted academic and industrial interest due to their extraordinary mechanical, electrical, and thermal properties. Their surface modification to increase their dissolution and processability properties has been the top priority of material scientists during the past decade. Several methodologies have been reported using covalent modifications Ts with polymers, organic or anic molecules [2].
Toward the development of an optimized electrocatalytic system, there are two important considerations; depositing fine Pt particles on the carbon support and bringing them into the three-phase region. A series of high temperature polymer electrolytes developed by our group consist of imbibed H3PO4 aromatic polyethers bearing pyridine units in the main chain [3]. The general structure