Browsing by Author "ALMURUMUDHE, OSAMAH KADHIM HILAL"
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thesis.listelement.badge ANION EXCHANGE MEMBRANE BASED ON SEMIINTERPENETRATING POLYMER NETWORK OF POLYETHER SULFONE / QUATERNIZED STARCH FOR ALKALINE FUEL CELLS(2022-01-11) ALMURUMUDHE, OSAMAH KADHIM HILAL; Güler, Enver; Alsalhy, Qusay F.Many effective devices that emerged and developed to generate power without toxic emissions. Proton exchange membrane fuel cell (PEMFC) is one of these effective devices. Its fully dependence on platinum as electrocatalyst has limited its application in a highly competitive market. Potential use of non-precious metal catalyst makes anion exchange membrane fuel cell (AEMFC) garnering renewed attention. Anion exchange membrane (AEM) is considered as the heart of the (AEMFC) and at the same time the preparation as the biggest challenge in the development of (AEMFC). Fabrication of those AEMs with high conductivity and with high alkali resistance has become an active research area for investigation. In this work, two types of anion exchange membranes for alkali fuel cells have been fabricated according to a simple and novel strategy by single step quaternization ̸crosslinking of starch with choline chloride and epichlorohydrin then blending it with polyethersulfone resulted in a semiinterpenetrating polymer network. The first type, the porous polyether sulfone AEM with 133.33 µm thickness exhibited water uptake of 376.7% and swelling ratio of 5.3%. The second type, the dense polyether sulfone AEM with 55.48 µm exhibited water uptake of 69.9% and swelling ratio of 7.5% The charaterization results confirmed that our fabrication route was very successful and our fabricated AEMs are very promising candidates for alkaline fuel cell applications.