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APPLICATION NOTES
BET specific surface area test method for pharmaceutical excipients
The specific surface area plays an important role in the purification, processing, mixing, tableting, and packaging capabilities of pharmaceuticals in...
Do's and Don'ts of Physisorption Measurements
OPERATING & MAINTANANCE TIPS FOR PHYSISORPTION INSTRUMENTS
Proper equipment maintenance and sample preparation is paramount to optima...
Applications & Testing of Celero the Multi-Channel Fixed Bed Reactor for High Throughput Catalyst Screening
The AMI-200 Catalyst Characterization Instrument doubles as a reactor for study of fuel cells catalysts Catalyst Screening in the Celero, by George Ma...
EVALUATION OF FCC CATALYSTS USING A MICROACTIVITY TEST (MAT) REACTOR
The evaluation of FCC catalysts is typically performed using a microactivity test (MAT) unit. This Altamira Instrument Note reviews the MAT test and t...
MEASURING SURFACE AREAS IN CATALYSTS
This Altamira Note gives a basic background on the measurement of BET surface area as applied to catalysts and catalytic supports as well as discusses...
Correlating Catalyst Characterization Measurements With Productivity in a Pharmaceutical Reaction Frank P. Gortsema, Ralph N. Landau, and Donna G. Blackmond Merck & Co., Inc
Heterogeneous catalytic hydrogenation is a common reaction in many multistep syntheses of pharmaceuticals and fine chemicals. The commercial scale rea...
Comparison of Static and Dynamic Chemisorption Measurements
In previous issues of Altamira Notes we have discussed the use of pulse chemisorption and temperature-programmed desorption, i.e. dynamic techniques,...
Conditions and Parameters for TPD Experiments: Supported Metal Catalysis
Previous Altamira Notes have discussed the use of temperature programmed desorption (TPD) for characterizing the surfaces of metallic catalysts1,2 and...
Development of a New Detection Method for TPO Analysis of Coke Deposits
Today, techniques such as TEM, Laser Raman Spectroscopy, EELS,13C NMR, and temperature-programmed oxidation (TPO) are used to study coked catalysts. P...
Development of a Quality Control Procedure for Characterizing Supported Nickel Catalysts
Quality control and instrument maintenance are important functions in all laboratories. Periodically running a QC procedure like the one described in...
Temperature-Programmed Reduction/Oxidation for Catalyst Characterization
Bibliography
1. Bhatia, S., J. Bettramini, and D.D. Do, Temperature-Programmed Anatysis and Its Applications in Catalytic Systems," Catalysis...
Temperature-Programmed Desorption for Catalyst Characterization
Bibliography
1. Absi-Halabi, M. and A. Stanislaus, “Effect of Phosphorus on the Acidity of y-Alumina and on the Therm...
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