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Impact of Interfacial Chemistry on Corrosion, Sensing, and Catalytic Properties of Materials


Evans, John Matthew (2024) Impact of Interfacial Chemistry on Corrosion, Sensing, and Catalytic Properties of Materials. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/e033-xj27.


Interfaces are critical for the development of new technologies spanning applications from energy to sensing. Here, electrochemical and spectroscopic investigations of interfacial chemistry reveal how the sensitivity of chemical vapor sensors can be tuned, how stoichiometry and electrolysis affect the chemical state of a Mn-based oxygen evolution catalyst, and how the presence of barrier protection layers affects the stability of photoanodes in alkaline solution. Additionally, an in-depth discussion of x-ray photoelectron spectroscopy gives advice and insight into this surface-sensitive technique and several practical examples are discussed.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Electrochemistry, x-ray photoelectron spectroscopy, catalysis, sensor, semiconductor, corrosion
Degree Grantor:California Institute of Technology
Division:Chemistry and Chemical Engineering
Major Option:Chemistry
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Lewis, Nathan Saul
Thesis Committee:
  • Gray, Harry B. (chair)
  • See, Kimberly
  • Blake, Geoffrey A.
  • Lewis, Nathan Saul
Defense Date:17 May 2024
Funding AgencyGrant Number
Office of Basic Energy Sciences (BES)DE-FG02-03-ER15483
Record Number:CaltechTHESIS:05202024-184723401
Persistent URL:
Related URLs:
URLURL TypeDescription adapted for chapter 4 adapted for chapter 1 adapted for chapter 2 adapted for chapter 3 adapted for chapter 2 adapted for chapter 3
Evans, John Matthew0000-0002-8721-5316
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:16395
Deposited By: John Evans
Deposited On:30 May 2024 23:24
Last Modified:12 Jun 2024 21:46

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