Porous organic polymers for electrochemical and energy storage application

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buir.advisorTuncel, Dönüş
dc.contributor.authorYau, Arma Musa
dc.date.accessioned2022-08-18T07:37:16Z
dc.date.available2022-08-18T07:37:16Z
dc.date.copyright2022-08
dc.date.issued2022-08
dc.date.submitted2022-08-16
dc.departmentGraduate Program in Materials Science and Nanotechnologyen_US
dc.descriptionCataloged from PDF version of article.en_US
dc.descriptionThesis (Master's): Bilkent University, Graduate Program in Materials Science and Nanotechnology, İhsan Doğramacı Bilkent University, 2022.en_US
dc.descriptionIncludes bibliographical references (leaves 59-68).en_US
dc.description.abstractThe intrinsic porosity and tunable morphology of Porous Organic Polymers (POPs), materials made from organic building blocks joined by strong covalent bonds, have become appealing in the context of electrochemical applications. In the first section of this thesis, a low-cost thiophene derivative and melamine were assembled into nitrogen and sulfur-enriched microporous organic polymer (MOP) using a pyrolysis-free one-pot Schiff-base type polycondensation reaction. The synthesized polymer is characterized by FT-IR, SEM, TEM, BET, XRD, XPS, TGA and UV-VIS. With 195.731 m2 g–1 surface area and 0.047 cm3 g–1 pore volume, the as-synthesized MOP has a cotton-like morphology and a micropore-dominated pore size distribution. After encapsulating it with a nickel co-catalyst, we showed that the obtained framework (MOP) could be used as an efficient catalyst for hydrogen evolution reaction (HER) in an alkaline electrolyte with the optimum composite (Ni2@MOP) exhibiting a remarkable onset overpotential of -66 mV. Furthermore, the optimum electrocatalyst showed good stability, delivering 90.84% faradaic efficiency (FE) after a 3.5 h chronoamperometry experiment. In the second section, the synthesized porous organic polymer and CB[6]-porphyrin covalent organic framework were investigated for potential use as electrode materials for supercapacitors.en_US
dc.description.degreeM.S.en_US
dc.description.statementofresponsibilityby Arma Musa Yauen_US
dc.embargo.release2023-02-28
dc.format.extentxiv, 70 leaves : illustrations, charts ; 30 cm.en_US
dc.identifier.itemidB161172
dc.identifier.urihttp://hdl.handle.net/11693/110455
dc.language.isoEnglishen_US
dc.publisherBilkent Universityen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMicroporous Organic Polymers (MOP)en_US
dc.subjectMelamineen_US
dc.subjectNickelen_US
dc.subjectElectrocatalytic hydrogen generationen_US
dc.subjectWater splittingen_US
dc.subjectSupercapacitoren_US
dc.titlePorous organic polymers for electrochemical and energy storage applicationen_US
dc.title.alternativeElektrokimya ve enerji depolama uygulaması için gözenekli organik polimerleren_US
dc.typeThesisen_US
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