Transient Data Collection Using the 3Flex
Understanding the rate of mass transfer of a guest species on a nanoporous material is important to predict and simulate its performance in many fields including but not limited to catalysis, gas separation, and electrochemistry. This webinar will delve into what type of information can be collected from the 3Flex using the most updated transient […]
CO₂ Adsorption in Zeolite 13X
Introduction Breakthrough analysis is a powerful technique for determining the adsorption capacity of a material under flow conditions. Breakthrough analysis allows users to precisely control temperature, pressure, and gas flowrates. This allows users to mimic process conditions and analyze adsorbates under conditions similar to those found in a production plant. Zeolite 13X is a commercially […]
Predicting Multicomponent Adsorption From Single-gas Isotherms Using MicroActive Software with IAST
The study of multicomponent adsorption is critical to understand processes in conditions typically found in industrial environments. Nevertheless, single component analyses are most often performed due to the commercial availability of instruments for the collection of single component isotherms as well as the ease in operation. With the release of MicroActive v6.0, multicomponent adsorption isotherms […]
Characterizing Advanced Battery Anodes with Gas Adsorption BET Surface Area and DFT Surface Energy
Generally, a nitrogen isotherm is widely used to characterize a material for specific surface area and pore size distribution. Using this well-established gas adsorption method, graphite, a commonly used anode material for Lithium-Ion Batteries, was characterized. In this webinar, how the unique characteristics of a graphitic surface affect the appropriate BET range will be discussed as […]
How Chemical Defects Influence the Charging of Nano-porous Carbon-based Supercapacitors
Ion desolvation and confinement are key physical processes in porous-carbon-based Electrical Double-Layer supercapacitors (EDL) undergoing charging and discharging cycles. The term of electrical double layer (EDL) capacitor comes from the classical picture of non-porous electrodes that accumulate oppositely charged ions at their vicinity upon voltage polarization in a mean-field dielectric continuum description of the solvent […]
Sample Grinding: What Happens to Surface Structure When a Material is Ground
What happens to a material when it is physically modified? Four materials were ground and sieved to create four particle size ranges. The unmodified material and these four size ranges were analyzed to obtain density, surface area, and porosity values. The AccuPyc II, a gas pycnometer, was used to obtain the sample density. Surface area […]
How Crystal Materials Will Save the World
That composition and structure can so profoundly impact the properties of crystalline materials has provided impetus for exponential growth in the field of crystal engineering over the past 30 years. Crystal engineering has evolved from structure design (form) to control over bulk properties (function). Today, when coupled with molecular modeling, crystal engineering offers a paradigm […]
Exploiting Multiple Gas Adsorption Isotherms for Consistent Pore Size Analysis
For years, the characterization of the surface area and pore size distribution (PSD) of porous materials has been dominated by the analysis of adsorption isotherms of nitrogen (N2) measured at its boiling point (77 K). Because N2 is easily available, not expensive, and routinely used in laboratories, it will continue to be the most used adsorbate […]
High Pressure Breakthrough Analysis Influence of Pressure on Carbon Capture
Introduction Isotherms are typically collected using static adsorption measurements as it is both easier and faster than collecting isothermal data on a breakthrough system. Static measurements, however, cannot mimic flows or gas impurities, and for this reason it may be necessary to collect breakthrough data at varying pressures to analyze and optimize your process. This […]
Breakthrough Analysis on the AutoChem
Introduction The AutoChem is a flow-through system that allows for the characterization of catalysts for surface activity. The AutoChem can also function as a basic single component breakthrough unit allowing for carrier, preparation, and analysis gas flows. This document will describe how to perform a breakthrough analysis using the AutoChem alongside a mass spectrometer. Experimental […]
