ASAP 2020 Plus operator manual
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Overview
The Micromeritics ASAP 2020 Plus is a high-performance adsorption analyzer for measuring surface area, pore size, and pore volume of powders and porous materials. Standard methods or user-customized protocols can be used to characterize adsorbents, catalysts, zeolites, MOFs, APIs, excipients, and a wide variety of porous and non-porous materials.
The ASAP 2020 Plus is ideally suited for gas adsorption analysis of microporous (0.35 - 2 nm) and mesoporous (2 - 50 nm) materials and delivers superior accuracy, resolution and data reduction.
A vapor sorption option can be added to the ASAP 2020 Plus to extend the analysis range of the ASAP 2020 Plus physisorption.
A chemisorption option extends the application range of the ASAP 2020 Plus to both physical and chemical adsorption for characterizing the texture and active surface of catalysts, catalyst supports, sensors, and a variety of other materials.
Chemisorption features
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The programmable, two-station degas system allows physisorption sample preparation while running a chemisorption analysis
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Twelve gas inlets allow multiple probe gases to be investigated maximizing efficiency and range of applications
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Dedicated exhaust port for external detector connections
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High-temperature 1100 °C furnace rapidly ramps to temperature and provides excellent, stable temperature and control with quick cool downs
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In-situ chemisorption sample preparation and activation provides a fully automated method that does not require user intervention; the design permits quick and easy transition from chemisorption to physisorption analysis
Physisorption features
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Programmable two-station degas system for automated SOP sample preparation
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A dedicated P0 sensor allows for a faster analysis and provides P0 values at the same conditions as the adsorption measurement
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Six analysis gas inlets with dedicated vapor and helium free-space ports provide greater flexibility and automated selection of pretreatment, backfill, and analysis gases
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Proven Isothermal Jacket Cold Zone Control provides accurate, reproducible temperature maintenance
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Long duration and refillable dewar provides virtually unlimited time of-analysis capability
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Standard, independent dual vacuum systems (one for analysis, one for sample pretreatment)
Standard dry pump design eliminates the need for cold trap
Proprietary transducer system provides unequalled stability, fast response, and low hysteresis for improved accuracy and signal to noise improvement
Applications
Knowledge of surface area, total pore volume, and pore size distribution is important for quality control of industrial adsorbents and in the development of separation processes. Surface area and porosity characteristics affect the selectivity of an adsorbent.
Surface area and porosity must be optimized within narrow ranges to accomplish gasoline vapor recovery in automobiles, solvent recovery in painting operations, or pollution controls in wastewater management.
The wear lifetime, traction, and performance of tires are related to the surface area of carbon blacks used in their production.
Fuel cell electrodes require high surface area with controlled porosity to produce optimum power density.
The active surface area and pore structure of catalysts influence production rates. Limiting the pore size allows only molecules of desired sizes to enter and exit, creating a selective catalyst that will produce primarily the desired product.
The surface area of a pigment or filler influences the gloss, texture, color, color saturation, brightness, solids content, and film adhesion properties. The porosity of a print media coating is important in offset printing where it affects blistering, ink receptivity, and ink holdout.
The burn rate of propellants is a function of surface area too high a rate can be dangerous; too low a rate can cause malfunction and inaccuracy.
Controlling the porosity of artificial bone allows it to imitate real bone that the body will accept and allow tissue to be grown around it.
By selecting high surface area material with carefully designed pore networks, manufacturers of super-capacitors can minimize the use of costly raw materials while providing more exposed surface area for storage of charge.
Surface area is often used by cosmetic manufacturers as a predictor of particle size when agglomeration tendencies of the fine powders make analysis with a particle-sizing instrument difficult.
Surface area and porosity of heat shields and insulating materials affect weight and function.
Porosity is important in groundwater hydrology and petroleum exploration because it relates to the quantity of fluid that a structure can contain as well as how much effort will be required to extract it.
Nanotube surface area and microporosity are used to predict the capacity of a material to store hydrogen.
Surface area and porosity play major roles in the purification, processing, blending, tableting, and packaging of pharmaceutical products as well as their useful shelf life, dissolution rate, and bioavailability.
Surface area and porosity affect the curing and bonding of greenware and influence strength, texture, appearance, and density of finished goods. The surface area of glazes and glass frits affects shrinkage, crazing, and crawling.
