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Chih-Chien Kung's Dissertation.pdf (3.66 MB)

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Development of Three Dimensional Platinum–Ruthenium/Graphene Foam Bimetallic Nanocatalysts for Methanol and Ethanol Oxidation Reactions in Energy Storage and Hydrogen Peroxide Detection in Biosensing

Kung, Chih-Chien
http://rave.ohiolink.edu/etdc/view?acc_num=case1391512843

Abstract Details

2014, Doctor of Philosophy, Case Western Reserve University, Chemical Engineering.
Carbon materials have special electronic properties and are considered promising materials for batteries, biosensors, fuel cells, and optically transparent electrodes. A novel composite material of hierarchically structured PtRu nanoparticles incorporated with three dimensional graphene foam (3D GF) is reported. GF is a 3D porous architecture which holds extremely large surface and highly conductive pathways. In this study, the objective is to enhance the performance of PtRu nanocatalysts with carbon supporting materials as electrode materials for direct methanol fuel cells (DMFCs) and direct ethanol fuel cells (DEFCs) in anodic oxidation reaction for energy storage and for the detection of H2O2 in biosensing. This improvement is resulted from the enhanced surface area and the extended protection of the poisoning of the nanocatalyst. PtRu/3D GF nanocatalyst exhibits a remarkable performance toward electrochemical oxidation of H2O2 without any additional mediator or enzyme and has a high sensitivity (1023.1 µA mM-1 cm-2) and a low detection limit (0.04 µM). PtRu/3D GF nanocatalyst also shows a higher tolerance to poisoning CO and exhibits a good catalytic activity for both the methanol oxidation reaction (MOR) and ethanol oxidation reaction (EOR). This new approach confirms that the nanocatalysts which have a small particle size and a high degree of the dispersion to obtain large active surface area will provide the best performance in MOR and EOR reactions as well as for H2O2 detection in biosensing.
Chung-Chiun Liu (Advisor)
Xiong Yu (Committee Co-Chair)
Rohan Akolkar (Committee Member)
Heidi B. Martin (Committee Member)
76 p.
Chemical Engineering

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Citations

  • Kung, C.-C. (2014). Development of Three Dimensional Platinum–Ruthenium/Graphene Foam Bimetallic Nanocatalysts for Methanol and Ethanol Oxidation Reactions in Energy Storage and Hydrogen Peroxide Detection in Biosensing [Doctoral dissertation, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1391512843

    APA Style (7th edition)

  • Kung, Chih-Chien. Development of Three Dimensional Platinum–Ruthenium/Graphene Foam Bimetallic Nanocatalysts for Methanol and Ethanol Oxidation Reactions in Energy Storage and Hydrogen Peroxide Detection in Biosensing. 2014. Case Western Reserve University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1391512843.

    MLA Style (8th edition)

  • Kung, Chih-Chien. "Development of Three Dimensional Platinum–Ruthenium/Graphene Foam Bimetallic Nanocatalysts for Methanol and Ethanol Oxidation Reactions in Energy Storage and Hydrogen Peroxide Detection in Biosensing." Doctoral dissertation, Case Western Reserve University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1391512843

    Chicago Manual of Style (17th edition)

case1391512843
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© 2014, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.