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Characterizing the Influence of Amino Acids on the Oxidation/Reduction Properties of Transition Metals


Abstract The utilization of solar energy requires an efficient means of its storage as fuel. In bio-inspired artificial photosynthesis, light energy can be used to drive water oxidation, but catalysts that produce molecular oxygen from water are required. This dissertation demonstrates a novel complex utilizing earth-abundant Ni in combination with glycine as an efficient catalyst with a modest overpotential of 0.475 ± 0.005 V for a current density of 1 mA/cm<super>2</super> at pH 11. The production of molecular oxygen at a high potential was verified by measurement of the change in oxygen concentration, yielding a Faradaic efficiency of 60 ± 5%. This Ni species can achieve a current density of 4 mA/cm<super>2</super> that pe... (more)
Created Date 2014
Contributor Wang, Dong (Author) / Allen, James P (Advisor) / Ghirlanda, Giovanna (Committee member) / Redding, Kevin (Committee member) / Arizona State University (Publisher)
Subject Chemistry / Alternative energy / Chemical engineering / Amino acids / Electrochemistry / Heterogeneous catalyst / Redox catalyst / Transition metals / Water oxidation catalyst
Type Doctoral Dissertation
Extent 124 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Doctoral Dissertation Biological Design 2014
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis