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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Powder Materials for Energy Applications
Presentation Title Fabrication of Uniform-sized Hemispherical Mesopores on Gold-coated Silver Nanocubes for Enzyme Immobilization
Author(s) Seongcheol Choi, Olivia A. Graeve
On-Site Speaker (Planned) Seongcheol Choi
Abstract Scope We demonstrate a procedure to fabricate gold-coated silver nanocubes containing hemispherical mesopores for applications as a catalytic substrate for enzyme immobilization. First, polyvinylpyrrolidone-covered silver nanocubes (45 nm) and uniform-sized silica nanoparticles (6 nm) were fabricated. The silica nanoparticles were deposited onto the polyvinylpyrrolidone-covered silver nanocubes by using physical adsorption. An ultra-thin gold layer was then grown on the surface of the silver nanocubes and the attached silica nanoparticles were etched off the particles using an alkali hydroxide solution at high temperature. Characterization of the materials was completed using scanning electron microscopy and X-ray diffraction. The mono-sized mesopores in the gold layer are designed to serve as sites to physically confine the enzyme, chloroperoxidase, to maximize their life span and enzymatic activity for desulfurization. This nano-architectured enzymatic catalyst is expected to increase the energy efficiency of the desulfurization of petroleum refining processes.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advanced Skutterudite-based Thermoelectric Unicouples by Near Net Shape Powder-based Fabrication for Future Space Power Applications
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Cubic Sub-micron BiFeO3 Powders for Improved Electrical Properties
Effect of Particle Spreading Dynamics on Powder Bed Quality
Fabrication of Complex Shape Components by Spark-plasma Sintering Utilizing 3D-printed Controllable Interface
Fabrication of Uniform-sized Hemispherical Mesopores on Gold-coated Silver Nanocubes for Enzyme Immobilization
Flash Sintering: From Fundamental Science to Energy-saving Materials Processing
Influence of Powder Microstructure on Cold Spray Deposited Cr Coatings for High Temperature Oxidation Resistance
Investigation of the Powder Processing of Near-final Shape AlNiCo Magnets for Eventual Use in Electric Drive Motors
Is Additive Manufacturing a Competition or Complimentary Technology to Current Processing of Metals?
Materials for Nuclear Applications Produced by Powder-based Techniques
Microstructural Evolution of a Nanostructured Ferritic Alloy Composite during In-situ Ion Irradiation
Microstructural Evolution of NFA and Cr3C2@SiC-NFA Composite during Ion Irradiation
Miscibility Gap Alloy Thermal Storage Materials
Next Stage Development of Iron-based GARS Alloy Powders for Cold Spray Deposition of ODS Structural Materials for Extreme Environments
Novel Additive Manufacturing Process Design for U3Si2 Fuel
Peltier Effect during Spark Plasma Sintering of Boron Carbide
Powder Metal Technology for High-performance Materials with Harmonic-structure
Processing and Characteristics of Nanostructured Ferritic Alloys for Nuclear Reactor Applications
Superelastic Zirconia Powder for Shockwave Dissipation in Energy Infrastructure
Synthesis, Sintering, and Electrochemical Properties of Lithium Conducting Garnets from Molten Salt Fluxes for All-Solid-State Lithium Batteries
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