Electrospun Fibers Reinforced Polymer Electrolyte Membranes for High Temperature Proton Exchange Membrane Fuel Cells

This PhD project is devoted to designing and fabricating advanced PBI based composite membranes, in which a crosslinked fiber matrix is assumed to reinforce the bulk phase of the membrane with good phase compatibility. The fiber matrix is prepared by electrospinning, forming a 3‐D structure that is interstitial and interconnected. The structure is used as a heterogeneous matrix to be filled by a bulk polymer phase, which is then to be functionalized by acid doping to create proton conductivity. The procedure is schematically illustrated in Figure 1 and the composite membranes are under characterization in term of micromorphology, gas permeability, conductivity, mechanical strength and fuel cell tests. The objectives of this project include preparation of electrospun 3-D PBI mat, fabrication of composite membranes and evaluation of composite membranes.

Figure 1. Schematic representation of experiment route


The PhD project is funded by DTU and China Scholarship Council (CSC).


Yongfang Chen
PhD student
DTU Energy