Nanostellar's Catalyst Characterization Methods

Nanostellar has access to many of the standard catalyst characterization methods, including various chemisorptions techniques, X-ray diffraction, surface area measurements, X-ray photoelectron spectroscopy, particle size analysis, electron microscopy (TEM, STEM), and in-situ FT-IR. We have also developed several novel characterization methods that we use to improve our understanding of nano-particle structure-activity relationships.

Transmission Electron Microscopy (TEM) and Scanning Transmission Electron Microscopy (STEM) are two methods for imaging particles. The TEM and STEM images below show well-dispersed Pt:Pd alloy nanoparticles.

TEM image of Pt:Pd alloy nano-particles:

STEM image of Pt:Pd alloy nano-particles:

Pt nanoparticle shape characterization. These images show the surface facets of imaged particles.

Nanostellar has several state of the art reactor systems that are used for activity screening and for detailed kinetic/mechanistic studies of our catalytic materials. A fundamental understanding of the reactions is critical for connecting the computational and experimental components of the RCD process. We have internal coating capabilities that allow deposition of catalysts onto monolithic substrates to allow core and vehicle tests, both of which are routinely done by Nanostellar.

Nanostellar Reactor System Examples:

Nanostellar Chemisorption Equipment:

Nanostellar Mill:

Nanostellar Particle Size Analyzer:

Nanostellar product offerings (powder form or as coated monoliths):

Catalyst Engine Aging Manifold: