AVS 63rd International Symposium & Exhibition
    In-Situ and Operando Spectroscopy and Microscopy for Catalysts, Surfaces, & Materials Focus Topic Friday Sessions
       Session IS-FrM

Invited Paper IS-FrM1
In-situ High-Energy X-ray Scattering for Probing Colloidal Nanoparticles in Solution

Friday, November 11, 2016, 8:20 am, Room 101C

Session: In situ Characterization of Nanomaterials
Presenter: Yugang Sun, Temple University
Correspondent: Click to Email
Growth and transformation of colloidal nanoparticles are important for synthesizing functional nanoparticles with tailored properties that represent the foundation for enabling nanotechnology. However, the involving chemical and physical processes are very complicated and barely understood, which limits the precise control over the properties of the nanoparticles. In this presentation, high-energy x-ray scattering techniques will be discussed to serve as unique in-situ approach to monitor these processes in real time. High-energy x-rays have strong penetration in reaction solutions, enabling the possibility to probe the solid colloidal nanoparticles with small volume fractions. In addition, the weak absorption of high-energy x-rays in materials can eliminate the possible side reactions. Reaction systems including the synthesis of colloidal silver nanocubes and microwave synthesis of silver nanoparticles have been successfully studied with the high-energy x-ray scattering at the beamline 1ID of Advanced Photon Source (APS)