Thesis
Reversible ionic surfactants for the preperation of supported nanoparticle catalysts
Washington State University
Master of Science (MS), Washington State University
12/2015
Handle:
https://hdl.handle.net/2376/103688
Abstract
Developing sustainable catalyst preparation techniques has received considerable attention recently. One approach to improving sustainability is by improving catalyst efficiency, minimizing waste, and minimizing the energy requirements for preparing and using catalysts. In this work we present the synthesis, deposition, and catalytic evaluation of gold nanoparticles synthesized using reversible ionic liquids. The nanoparticles are supported on silica gel, and their activity is evaluated for the hydrogenation of 4-nitrophenol. We show that leveraging the switchable nature of the ionic liquids produces catalytically active supported nanoparticles that do not require calcination. We compare the supported gold nanoparticles synthesized in this manner to supported gold nanoparticles stabilized with citrate, and then subsequently calcined. In this work we present a promising sustainable synthesis technique that utilizes a recyclable solvent (thereby minimizing waste) to produce catalytically active nanoparticles that do not require calcination. The particles show similar activity to gold nanoparticles synthesized using traditional techniques. The nanoparticles we synthesize using reversible ionic did not need to undergo the calcination step. Calcining these particles actually inhibited their activity significantly.
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Details
- Title
- Reversible ionic surfactants for the preperation of supported nanoparticle catalysts
- Creators
- Gasim Muntasir Eltayeb Ibrahim
- Contributors
- Steve R. Saunders (Chair)Su Ha (Committee Member) - Washington State University, Chemical Engineering and Bioengineering, School ofNEHAL I ABULAIL (Committee Member)
- Awarding Institution
- Washington State University
- Academic Unit
- Voiland College of Engineering and Architecture
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Number of pages
- 75
- Identifiers
- 99900525293501842
- Language
- English
- Resource Type
- Thesis