Electrochemistry of oxygen with lithium and protons
Abstract/Contents
- Abstract
- The focus of this thesis is to identify the fundamental limitations associated with the electrochemistry of oxygen with lithium and protons based on computational modeling of the underlying processes. These have important implications for lithium-air batteries and fuel cells. We have examined three critical questions relating to the practicality of lithium-air batteries namely (i) Cycle efficiency, (ii) Deep discharge and (iii) Rechargeability. The key performance limitations were identified through a close coupling between experiments and theoretical modeling. We have developed a thermodynamic analysis based on density functional theory calculations to understand the reduction of oxygen with protons to water. Based on this analysis, we have identified a fundamental limiting overpotential of 0.37 for this reaction. We also show that this analysis can be used to understand trends in selectivity between the 4e- reduction to water and 2e- reduction to hydrogen peroxide. This analysis has been used to rationalize nearly 30 years of experiments on the catalytic activity of single crystal metal surfaces.
Description
| Type of resource | text |
|---|---|
| Form | electronic; electronic resource; remote |
| Extent | 1 online resource. |
| Publication date | 2013 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Associated with | Viswanathan, Venkatasubramanian |
|---|---|
| Associated with | Stanford University, Department of Mechanical Engineering. |
| Primary advisor | Noerskov, Jens |
| Primary advisor | Pitsch, Heinz |
| Thesis advisor | Noerskov, Jens |
| Thesis advisor | Pitsch, Heinz |
| Thesis advisor | Jaramillo, Thomas Francisco |
| Thesis advisor | Prinz, F. B |
| Advisor | Jaramillo, Thomas Francisco |
| Advisor | Prinz, F. B |
Subjects
| Genre | Theses |
|---|
Bibliographic information
| Statement of responsibility | Venkatasubramanian Viswanathan. |
|---|---|
| Note | Submitted to the Department of Mechanical Engineering. |
| Thesis | Thesis (Ph.D.)--Stanford University, 2013. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2013 by Venkatasubramanian Viswanathan
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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