Wei, Jimeng
(2023)
Role of Chirality in Electron Spin Filtering, Water Splitting, and Electron Transfer.
Doctoral Dissertation, University of Pittsburgh.
(Unpublished)
Abstract
The focus of my dissertation is to study the chiral induced spin selectivity (CISS) effect and how the CISS effect can be used to explain some biological electron transfer process and if chiral materials can act as spin filters to enhance water splitting efficiency. The cytochrome c – oligopeptide assembly we have built demonstrated that the chiral oligopeptide molecules are effective spin filters, and the electron transfer rate constant depends heavily on the whether the chirality of the cytochrome c and the oligopeptide matcher each other. We have also successfully electrodeposited chiral metal oxide films, where the chirality and spin filtering capabilities of these metal oxide films were confirmed using circular dichroism spectroscopy and photoemission spectroscopy. Moreover, we discovered that these chiral metal oxide films can be used to lower the overpotential of the water splitting reaction. However, a different approach to make chiral metal oxide films by using ALD does not show concrete evidence that the metal oxide films are chiral, and it requires further research and improvement.
Share
| Citation/Export: |
|
| Social Networking: |
|
Details
| Item Type: |
University of Pittsburgh ETD
|
| Status: |
Unpublished |
| Creators/Authors: |
|
| ETD Committee: |
|
| Date: |
6 September 2023 |
| Date Type: |
Publication |
| Defense Date: |
23 May 2023 |
| Approval Date: |
6 September 2023 |
| Submission Date: |
6 July 2023 |
| Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
| Number of Pages: |
132 |
| Institution: |
University of Pittsburgh |
| Schools and Programs: |
Dietrich School of Arts and Sciences > Chemistry |
| Degree: |
PhD - Doctor of Philosophy |
| Thesis Type: |
Doctoral Dissertation |
| Refereed: |
Yes |
| Uncontrolled Keywords: |
N/A |
| Date Deposited: |
07 Sep 2023 01:30 |
| Last Modified: |
07 Sep 2023 01:30 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/45065 |
Metrics
Monthly Views for the past 3 years
Plum Analytics
Actions (login required)
 |
View Item |
![[feed]](/images/feed-icon-32x32.png){kind=icon}