Structure-Property Based Design of Novel Composite Proton Exchange Membranes

Composite proton exchange membranes (PEM) with tuned microstructure, and novel proton conductors have been highlighted as promising alternatives to conventional PEMs, which suffer from high-humidity and low-temperature requirements. However, the exact structures and thus proton and water transport in these materials are poorly understood. High performance polymeric membranes with 2D material additives mixed into the framework have been successfully fabricated and studied using neutron scattering techniques. A related composite structure composed of a 2D material single layer will be produced using interfacial chemical assembly, as well as a novel ionic liquid intercalated graphene composite, at the University of Waterloo. Structural investigation of these three composite types, at specified hydration and temperature, will be conducted at the University of Calgary. Correlation with previous investigation will unveil the mechanisms of water uptake, phase separation and proton conduction in the mixed composites. Moreover, optimal composite architecture and additive loading will be established to direct the design of future membranes.

Faculty Supervisor:

Kunal Kuran;Michael Pope

Student:

Partner:

University College London

Discipline:

Engineering

Sector:

Education

University:

University of Calgary

Program: