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Synthesis and Electrochemical Studies of Graphene-based Nanocomposites for Hydrogen Storage

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Title: Synthesis and Electrochemical Studies of Graphene-based Nanocomposites for Hydrogen Storage
Author: Boateng, Emmanuel Quaidoo
Department: Department of Chemistry
Program: Chemistry
Advisor: Chen, Aicheng
Abstract: With impending serious concerns associated with climate change and the depletion of fossil fuels, an envisaged hydrogen economy remains a viable alternative for addressing future energy issues. Research into solid-state hydrogen storage has expanded significantly, with the potential to fulfill the targets established by the United States Department of Energy. The capacity for solid-state hydrogen storage of uniformly dispersed palladium (Pd) nanoparticles on boron-doped reduced graphene oxide (B-rGO) nanocomposites was measured using several electrochemical methods and other complementary techniques. The impacts of Pd nanoparticle decoration and boron substitution within the graphene composites on electrochemical performance for hydrogen storage were comparatively investigated. The cyclic voltammetry of the Pd-B-rGO nanocomposites exhibited a notable improvement in hydrogen sorption-desorption behaviors in contrast to the undoped Pd-rGO. The developed nanomaterials demonstrated enhanced performance for the electrochemical storage of hydrogen with a discharge capacity of 88 mAh g-1, which was approximately three-fold higher than Pd-rGO electrode.
URI: http://hdl.handle.net/10214/17631
Date: 2019-12
Rights: Attribution-NoDerivatives 4.0 International
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Attribution-NoDerivatives 4.0 International Except where otherwise noted, this item's license is described as Attribution-NoDerivatives 4.0 International