Design Oxygen Evolution Reaction Support Materials to Enable Efficient (Photo)electrochemical Water Splitting

Simple item page
dc.contributor.advisorMohite, Aditya
dc.creatorKo, Hyujin
dc.date.accessioned2024-01-22T21:19:01Z
dc.date.available2024-01-22T21:19:01Z
dc.date.created2023-08
dc.date.issued2023-10-20
dc.date.submittedAugust 2023
dc.date.updated2024-01-22T21:19:01Z
dc.description.abstractPhotoelectrochemical(PEC) water splitting is considered one of the most promising technologies for clean hydrogen generation from solar energy. IrOx electrocatalysts have been widely used for water electrolysis due to the strong acidic conditions and slow kinetics in Oxygen Evolution Reaction (OER) at the anode. Given the high cost and lack of Ir on the earth, reducing Iridium content for OER is a crucial aspect towards the commercialization of PEC water splitting. In this research, we have synthesized and investigated low-loading precious metal catalysts using iridium and transition metals with different ratios. Additionally, we modified the surface of the electrode using conductive epoxy and sanded graphite sheets to improve limited stability via corrosion in the strong acidic electrolyte and detachment of the catalyst. The OER activity of low-loading precious metal catalysts increased as the thickness of the graphite decreased and defected. The Ir-based bimetallic nanoparticles showed enhanced OER activity compared to Ir-only. This research provides valuable insights into the effective utilization of precious metals and making efficient structure for OER, which will be crucial in improving hydrogen production through water splitting and making the process more economical.
dc.format.mimetypeapplication/pdf
dc.identifier.citationKo, Hyujin. "Design Oxygen Evolution Reaction Support Materials to Enable Efficient (Photo)electrochemical Water Splitting." (2023) Master's thesis, Rice University. https://hdl.handle.net/1911/115336
dc.identifier.urihttps://hdl.handle.net/1911/115336
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectPhotoelectrochemical(PEC) water splitting
dc.subjectOxygen Evolution Reaction
dc.subjectCatalysis
dc.titleDesign Oxygen Evolution Reaction Support Materials to Enable Efficient (Photo)electrochemical Water Splitting
dc.typeThesis
dc.type.materialText
thesis.degree.departmentChemical and Biomolecular Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
KO-DOCUMENT-2023.pdf
Size:
931.35 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
PROQUEST_LICENSE.txt
Size:
5.83 KB
Format:
Plain Text
Description:
Download
No Thumbnail Available
Name:
LICENSE.txt
Size:
2.97 KB
Format:
Plain Text
Description:
Download
Collections
Rice University Electronic Theses and Dissertations