Cryostat I
The Micromeritics Cryostat I is a single-stage cryogenic refrigerator based on the Gifford-McMahon principle, designed to work with the 3Flex.
Overview
The 3Flex, a high-performance gas adsorption analyzer from Micromeritics, is the most advanced instrument for measuring pore size, pore volume and surface area of powders and particulate materials.
Suited for gas or vapor adsorption analysis of microporous (<2 nm) and mesoporous (2 to 50 nm) materials, the 3Flex delivers superior accuracy, resolution and data reduction.
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.
Chemisorption configurations
Extend your 3Flex to physical and chemical adsorption methods with our chemisorption configurations. Ideal to characterize the texture and active surface of catalysts, catalyst supports, sensors and a variety of other materials.
- Surface area
- Mesopore
- Micropore
- Cyclic adsorption and desorption
- Heat of adsorption
- Vapor sorption
- Static chemisorption
- Temperature-programmed reactions: TPR, TPO, TPD, TPSR
- Dynamic chemisorption
Analysis ports
The Micromeritics 3Flex features three parallel analysis ports. One port is configured with an ultra-high sensitivity 0.1 torr transducer to enable characterization of the ultra-micropore region.
All three ports can be configured for micropore analysis to improve throughput for the most demanding labs.
The Flex is a single-port configuration option for the 3Flex, designed for labs with limited throughput needs in mind.
Features
-
- Extend Your Range of Study
-
Go beyond micropore and extend your range of resolution to the ultramicroporous level. The advanced transducer technology and vacuum management of the Micromeritics 3Flex permits you to collect adsorption isotherms and the pore size distributions for materials with pores as small as 0.3nm. Plus, exclusive new pore size distribution models allow you to measure smaller pores, faster, using H2, O2, or CO2.
- Extend and Increase Your Knowledge
-
The Micromeritics 3Flex permits you to optimize experimental parameters to gain greater understanding of your material. The 3Flex has the capability to analyze a sample with 3 separate probe gases simultaneously, one on each analysis port, within a single run.
- Optimize Your Material
-
The Micromeritics 3Flex provides the highest quality isotherms: the widest range of pressures, the highest resolution, and the most accurate adsorption measurements. MicroActive provides the greatest number of peer-reviewed models for pore size distribution and surface texture. Together, you gain the most valuable insight into the structure and performance of your materials. Validate your theories and rationalize the design and synthesis of MOFs, zeolites, activated carbons and other products. The high throughput results from the 3-port mesopore & micropore design of the 3Flex empower you to rapidly characterize & understand surface area, porosity, and adsorption capacity of your high performance materials.
- High Resolution, High Throughput Physisorption and Chemisorption Instrument
-
Recognized as the most advanced instrument in the field for material surface characterization, the 3Flex has become a crucial tool for providing high-resolution adsorption and desorption isotherms to advance and validate fundamental understanding into new material
The 3Flex is the premier platform for gas adsorption measurements, delivering a complete portfolio of capabilities for advanced physisorption measurements.
- The lowest measurable sample pressure to enable complete characterization of materials starting from the ultra-micropore region, driven by ultra-clean manifold design that features hard-seal valves and chemically resistant metal seals to provide chemical compatibility, increased evacuation speed and vacuum performance, and the lowest outgassing rate in the industry.
- Isotherm data collection begins in the 10.
- Rapidly collect high-resolution adsorption isotherms with advanced dosing methods and proprietary hardware. Advanced dosing method permits users to combine pressure and volume increments to optimize isotherm resolution in regions of high and low uptake. The proprietary computer-controlled servo-valve guarantees accurate dose delivery in less time.
- Ports can be configured for krypton analysis of low surface area materials.
- Standard configuration includes vapor sorption capabilities; an optional heated vapor source is available to extend the analysis range.
- Sequence experiments of gas adsorption, vapor sorption, and chemisorption to determine basic surface structure, functional performance, and chemical surface characteristics without removing the sample from the instrument.
- Analyze a sample with three separate adsorbent gases simultaneously, one at each port in a single analysis.
- Po port with dedicated pressure transducer provides continuous monitoring of saturation pressure.
- MicroActive™ Data Reduction software provides powerful yet intuitive data analysis.
- Small footprint conserves valuable bench space.
Expand the 3Flex’s analytical reach with chemisorption capabilities. Additional capabilities include: static chemisorption, dynamic chemisorption, and pulse chemisorption to measure specific surface chemistries.
With the addition of the integrated thermal conductivity detector (TCD), the 3Flex can deliver highly accurate dynamic chemisorption analyses: temperature programmed reduction (TPR), oxidation (TPO), desorption (TPD), and reactions (TPRx). Investigate temperature-dependence of specific adsorption or desorption process profiles for catalysts and adsorbents.
The TCD Loop option further unlocks pulse chemisorption for measurements of active surface area and an automated injection loop.
Innovative design allows a complete switch between physisorption and chemisorption analysis in minutes.
- VCR seals provide higher levels of system cleanliness, low outgas rates, and base pressures. The result is accurate low-pressure chemisorption isotherms and the ability to measure oxygen-sensitive materials.
- Standard high-precision mass flow controller provides the most accurate, gas control.
- High-temperature furnace (up to 1100°C) provides quick and accurate ramp rates with precise temperature control and repeatability (±1°C).
- Superior temperature control maintains accuracy and repeatability in monotonic isotherms.
- Up to a total of sixteen* gas inlets allow multiple probe gases to be investigated maximizing efficiency and range of applications.
- High-temperature, precision quartz cell improves accuracy and sensitivity for challenging analyses.
- Heated vapor can also be used as the adsorptive for chemical adsorption analyses.
- Powerful MicroActive software provides automated data collection and insightful analysis; available analyses include: peak integration, peak deconvolution (curve fitting), and calculation of active surface area, crystallite size, and dispersion.
- Industry-exclusive, localized loop valve temperature measurement and control improves precision, signal detectability and repeatability of the precision, detectability, and repeatability in the TCD signal (TCD Loop Option).
System configurations
Physisorption configuration
- High resolution gas adsorption isotherms with the world’s best low pressure sensitivity Vapor sorption analyses
- Repeated adsorption/desorption
Chemisorption configuration
- Static chemisorption analysis
- Accurate, stable furnace to 1100 °C
- Integrated sample prep and activation including mass flow controller
Chemi-TCD configuration
- Dynamic chemisorption including temperature-programmed analyses
- Injection port, cold trap, and new analysis protocols in MicroActive to support dynamic chemisorption analyses: TPR, TPO, TPD, TPRx
Chemi-TCD Loop configuration
- Pulse chemisorption adds increased precision, repeatability, and reproducibility by the addition of an injector loop valve with two loop options in addition to four gas inlets, a restrictor for flow control and an industry exclusive; local temperature measurement/control at loop injection
Applications
-
- Metal Organic Frameworks (MOFs) and Porous Organic Polymers
-
Empowering the Study of Energy Storage and Gas Separations by MOFs and POPs.
- Investigate the influence of Hydrogen adsorption enthalpy: The 3Flex has the ability to expediently switch from Physisorption to Chemisorption permitting investigation for enthalpy tied to ligand influence.
-
Determine the influencing relationship of surface area, pore volume and substrate/analyte interactions for uptake, capacity, and release evaluations: The 3Flex has the capability to analyze a sample with 3 separate probe gases simultaneously, one on each analysis port, within a single run.
-
Evaluate optimal small pore size as a strategy to enhance hydrogen–framework interactions: Superior gas management and temperature control permits accurate and precise micropore and ultra-micropore (<0.7 nm) measurements.
-
Advanced pore size analysis with NLDFT models: MicroActive™ data software permits you to graphically capture the desired range of isotherm data using an intuitive user interface. This reduces the time and effort required to transform data to textural information including surface area and pore size. The MicroActive user interface enables you to export data to your preferred software for further analysis or custom plotting, and the powerful reporting software includes exporting the data to a spreadsheet, saving to PDF, or printing reports.
- Advancing the understanding for strategy and synthesis in zeolite design
-
-
Quantitatively determine the number of surface active sites for catalytic potential: Provide data related to monolayer uptake, metal area, dispersion and crystallite size of the catalysts. The advanced flexibility of the Flex family lets you quickly change from Physisorption analysis to Chemisorption analysis in minutes to permit full characterization in one instrument.
-
Determine if zeolite processing has resulted in loss of structure or degradation: The advanced architecture of the 3Flex provides industry-leading micropore resolution and provides information to help resolve minor structural defects due to processing. The advanced design of the 3Flex provides industry leading resolution and accuracy. Obtain valuable insight for pore architecture to gain greater understanding of transport, diffusion rates and selectivity.
-
- Gain valuable data for improving activated carbon adsorbents and catalyst performance
-
-
Determine adsorption dynamics in regard to resident time for performance in fixed bed and flow through systems: Acquire valuable data for greater understanding of the influence of surface area and pore volume and pore size distribution on performance.
-
Gain valuable insight of structural and chemical heterogeneity influence on adsorption dynamics: Superior gas management, hard seal valves and metal seals along with precise temperature control permit accurate and precise micropore measurements. Evaluate temperature and chemical deactivation processes in regard to porosity and surface activity. Accurate temperature and gas control ensure repeatable analytical data sample to sample, batch to batch.
-
