A critical attribute that contributes to the quality of a manufacturing process is the density of the powdered or solid material. Density gives information about the amount of material in a given volume which can offer a prediction of how the powdered material will pack. Density also gives information on the amount of hollow…
A reliable method to design site-isolated metal catalysts is through the synthesis of intermetallic bulk compounds where a small number of active atoms are isolated in an inert matrix of a second metal. Unlike alloys, intermetallics have long range periodic atomic order and are more likely resistant to surface segregation effects making them an…
Many powders have the potential to cake during storage. As the strength of particle-particle interactions increases, especially via mechanisms involving moisture, the flow characteristics of the material are compromised, detrimentally impacting performance and value. Caking may be preventable or easily addressed through the adoption of well-defined protocols, for example, storing the material in a…
Most current climate models suggest that limiting warming to less than 2°C will require large scale deployment of negative emissions technologies (NETs). NETs, which remove CO2 from the atmosphere, are projected to be needed at a scale of 10 Gt/y by 2050, yet today, virtually none of been deployed. NETs may be natural or…
Sample preparation is an often-overlooked part of the material analysis process, yet it is critical to achieving consistent and high-quality results. This webinar will discuss the importance of sample preparation and different methods for activating samples. Emphasis will be placed on activating samples for analysis in physisorption and chemisorption instruments. Particle size and methods…
TPR studies are often repeatable, but a change in the experimental conditions or preparation of the material can affect the results. Due to this complexity, experimental conditions are selected based on models such as Monti and Baiker – which considers the selection based on the heating rate, hydrogen concentration, total flow rate, and the…
