Aberration corrected analytical electron microscopy studies of nanometallic catalysts

Authors: Sultan Althahban (Lehigh University)
Co-authored by industrial partner: No

Type: Thesis

State: Published (Approved)
Published: August 2018

Abstract: Catalysis by nanoscopic metal structures, ranging from nanoparticles to sub-nm clusters and even individual atoms, is amongst the most intensely studied topics in nanoscience. The catalytic performance of supported metal nanoparticles is governed by their crysallographic structure, shape, size, composition and interaction with the support. Aberration-corrected scanning transmission electron microscopy (AC-STEM), with its ultra-high spatial resolution for imaging and compositional analysis, is an ideal tool for characterizing such features in metallic nanocatalysts. In this thesis, five case studies are presented where AC-STEM has been invaluable in elucidating synthesis route - structure - performance relationships in some technologically important catalyst systems.

Subject Areas: Materials

Instruments: B18-Core EXAFS , I20-Scanning-X-ray spectroscopy (XAS/XES)