Faculty Advisor

Mahmoud, Yousef Abdelaziz

Faculty Advisor

Peterson, Amy M.

Abstract

Vanadium redox flow batteries (VRFBs) are seen as promising candidates for grid energy storage. However, the high cost of the battery's ion-exchange membrane, DuPont's Nafion, restricts its economic viability. Nafion also exhibits high vanadium permeability, hindering battery lifespan. Studies show that Nafion conducts protons well because of the 4 nm sulfonate ion channels it forms, but these channels might be large enough for vanadium ions. Thus, it was hypothesized that simpler polyanions, when casted with inorganic nanowires, would order themselves around the nanowires, thereby orienting charged channels for proton mobility while simultaneously plugging channel volume from vanadium bulk transport. The goal was to fabricate a low cost membrane with high selectivity and conductivity.

Publisher

Worcester Polytechnic Institute

Date Accepted

April 2018

Major

Interdisciplinary

Project Type

Major Qualifying Project

Accessibility

Unrestricted

Advisor Department

Electrical and Computer Engineering

Advisor Department

Chemical Engineering

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