Product category:
Particle size analysis equipment
News Release from: Quantachrome Instruments | Subject: Autosorb-1
Edited by the Laboratorytalk Editorial
Team on 30 January 2006
Combined catalyst characterisation
techniques
Researchers can analyse heterogenous catalysts for BET surface area, metal area and dispersion, reduction profiles, acid site distribution, heats of adsorption and activation energy in a single unit
Quantachrome Instruments's Autosorb-1 gas sorption analyser, in its newest version, now combines static and manometric measurements for complete chemisorption (and physisorption) isotherms, plus flow methods such as pulse titration and fully automated TPR (temperature programmed reduction), TPO (temperature programmed oxidation) and TPD (temperature programmed desorption) Catalyst researchers, manufacturers and users can now analyse heterogenous catalysts for BET surface area, pore size, metal area and dispersion, reduction profiles,acid site distribution, heats of adsorption and activation energy etc in a single unit
This article was originally published on Laboratorytalk on 10 Feb 2006 at 8.00am (UK)
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Measuring pore size in thin-film low-k dielectrics
Quantachrome Instruments announces a new method for determining pore size and pore volume distribution in thin-film low-k dielectrics.
Oxidation-resistant detectors for catalyst TPO
Catalyst characterization units feature stable, oxidation-resistant detectors which are an essential feature of the analysis type known as temperature programmed oxidation, or TPO
A choice of detectors for flow mode is offered, TCD or mass spectrometer - both can even be accommodated together.
A cold trap (for condensible reaction or desorption products) and loop injection valve are also available options.
This hybridisation of techniques that Quantachrome calls FlowStat has significantly reduced the investment costs normally associated with multiple units for complete catalyst texture characterisation.
Commercial gas sorption analysers have traditionally been only of one type, relying either solely on static pressure measurements (manometric) of adsorption and desorption of single gases or a continual flow of gas(es) over the sample with a downstream detector monitoring changes in gas composition, but not both.
Rarely does such a small benchtop footprint (~0.5m2) as the Autosorb-1, with its dual-measuremnt modes, offer so much capability in the field of porous materials characterisation.
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