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Meeting Materials Science & Technology 2020
Symposium Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
Presentation Title Explore Different Roles of Catalysts in the Growth of Si-based Nanostructures
Author(s) Shifat Us Sami, Samuel Bultman, Haitao Zhang
On-Site Speaker (Planned) Haitao Zhang
Abstract Scope Catalysts play an important role in the controlled growth of various nanostructures. In a conventional Vapor-liquid-solid process, catalyst particles are normally used to accommodate vapor precursors and induce the formation of one-dimensional nanostructures. However, from our recent studies, catalysts could have a new role to enhance the reactions at the solid surface and promote the formation of vapor precursors from solid sources, which is otherwise hard to be vaporized under certain experimental conditions. The different roles of different catalyst particles are sensitive to their stability and vapor pressures at different temperature. In this talk, the roles of different catalysts (e.g., Te, Cu, and Au) will be revealed on the growth of Si-based nanostructures, including SiOx nanowires and Si2Te3 2D nanolayers. The catalyst effects on the composition and morphology controls of nanostructures will be demonstrated. The mechanism could promote the nanomaterial growth under less critical conditions (e.g., lower growth temperature).

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Chemical Pre-intercalation Synthesis and Exfoliation of Bilayered Vanadium Oxides for Energy Storage Applications
Control Over Structure and Chemistry Across Multiple Lengthscales in Fe-Si-Ge-Based Thermoelectrics
d-Spacing Effect on the Electrochemical Performance of MXene in Organic and Room Temperature Ionic Liquids
Direct Synthesis of Nanoclusters from Cu Nanowires
Effect of Cation Pre-intercalation on the Electrochemical Performance of Multilayer Ti3C2 MXene in Aqueous Electrolyte
Explore Different Roles of Catalysts in the Growth of Si-based Nanostructures
Introductory Comments: Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
Light Transmission Modulation in Ceramics through Mesoscale Modelling
Multiscale Modeling of Radiation-induced Precipitation Hardening by Cu Nanoclusters in Fe-Cu Alloys
Nanocomposites with Extremely High Fractions of Nanomaterials via Infiltration of Polymers into Nanoparticle Packings
Oxide Nucleation and Growth during In Situ Oxidation of Cu and Cu Alloys
Panchromatic Light Absorption in CdSe/CdS Coated SnO2 Nanowires for Solar-fuel Conversion
Purification of Carbon Nanotube Yarns via Incandescent Annealing
Rheological Dynamics of Liquid Crystal-coupled Nanocomposites under Influence of Thermal Gradients
The Formation Mechanism of TiO2 Polymorphs under Hydrothermal Conditions
Towards Superhard Binderless Nanocrystalline Tungsten Carbide
ZnO Nanoparticle-Poly(methyl methacrylate) Hybrid Ultraviolet Shielding Films

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