Gravimetric sorption is a popular analytical method utilized for the determination of the rate of interaction between a gas and an either solid or liquid material. The gravimetric sorption technique works with a sample’s weight being continuously measured on a microbalance as gas pressure is modulated under a constant temperature. Sorption update is established based on the measured changes of weight.
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| Company | Hiden Isochema | Hiden Isochema | Hiden Isochema | Hiden Isochema |
| Item | IMI-HTP Hydrogen Storage Analyzer | IMI-FLOW Manometric Gas Sorption Analyzer | IMI-PSI High Pressure Manometric Sorption Analyzer | XEMIS-001 Gravimetric Sorption Analyzer |
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| Catalog Number | IMI-HT | IMI-FLOW | IMI-PSI | XEMIS-001 |
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| Temperature Range | 77 K to 500 °C | 77 K to 773 K | 77 K to 773 K | 77 K to 500 °C |
| Pressure Range | 100 bar (standard) 200 bar (optional) | 100 bar (standard) 200 bar (optional) | 100 bar (standard) 200 bar (optional) | 170 bar (standard) 200 bar (optional) |
| Description | The IMI-HTP is designed to characterize hydrogen storage materials using Sieverts method up to pressures of 200 bar. High accuracy is ensured by a minimized dead volume, all-metal construction, high thermal stability and accurate pressure measurement. Every IMI-HTP is specified to meet the The IMI-HTP is designed to characterize hydrogen storage materials using Sieverts method up to pressures of 200 bar. High accuracy is ensured by a minimized dead volume, all-metal construction, high thermal stability and accurate pressure measurement. Every IMI-HTP is specified to meet the challenging demands of high pressure H2 operation, with permanent overpressure protection to satisfy the most rigorous safety requirements.
Features:
- Sub-microgram hydrogen sorption resolution
- High pressure operation from ambient temperature to 773 K
- Liquid N2 coolant options for low temperature physisorption
- Fully upgradable modular design
- Versatile instrument control, with fully programmable software
- Also operates with a range of other gases (N2, CH4, CO2, O2,…)
... Read More | The IMI-FLOW combines the manometric gas sorption capabilities of all IMI analyzers with flowing mode operation and integrated mass spectrometry. Manometric mode offers high accuracy isotherm determination to 200 bar, while the flowing mode provides complete control of pressure, composition and flowThe IMI-FLOW combines the manometric gas sorption capabilities of all IMI analyzers with flowing mode operation and integrated mass spectrometry. Manometric mode offers high accuracy isotherm determination to 200 bar, while the flowing mode provides complete control of pressure, composition and flow rate. Integrated mass spectrometry allows downstream gas analysis for TPD and advanced methods.
Features:
- Sub-micromole gas sorption resolution
- High pressure operation from 77 K to 773 K
- Automatic switching between manometric and flowing mode operation
- Versatile control from standard methods to complete user-defined experiments
- Full integration of mass spectrometers from Hiden’s quadrupole range
... Read More | The IMI-PSI is designed to investigate gas sorption by nanoporous materials, from sub-ambient pressures to 200 bar. Its inherent flexibility allows both BET surface area analysis and gas storage studies to be performed using only one instrument, while an optimized design and superior build quality The IMI-PSI is designed to investigate gas sorption by nanoporous materials, from sub-ambient pressures to 200 bar. Its inherent flexibility allows both BET surface area analysis and gas storage studies to be performed using only one instrument, while an optimized design and superior build quality ensures high accuracy. Full automation enables pre-programmed gas switching and sample pretreatment routines to be set for ease-of-use.
Features:
- Sub-micromole gas sorption resolution
- 200 bar operation, with 773 K degassing capability
- Liquid coolant thermostatting, including LN2 for BET analysis
- Enhanced low pressure measurement accuracy
- Fully upgradable modular design
... Read More | The XEMIS series are high accuracy gravimetric sorption analyzers operating to 200 bar. Changes in sample mass are measured as a function of applied temperature and pressure to determine isotherms, isobars and sorption kinetics. Designed for operation with a full range of gas and vapor species The XEMIS series are high accuracy gravimetric sorption analyzers operating to 200 bar. Changes in sample mass are measured as a function of applied temperature and pressure to determine isotherms, isobars and sorption kinetics. Designed for operation with a full range of gas and vapor species including corrosives and flammables, the XEMIS series features active pressure regulation from 10-2 mbar: a controllable pressure range covering 7 orders of magnitude.
Features:
- Isotherm, isobar and high pressure TGA measurements in a single automated analyzer
- Compatible with flammable, corrosive and toxic gases and vapors
- Symmetric geometry, with ultra-low total system buoyancy for high accuracy measurements at high pressures
- Measurements at temperatures from 77 K to 500 °C
- Fast and accurate analysis of equilibria and kinetics using the IGA method
- Full automation and advanced programmability
... Read More |
| Applications | Hydrogen storage capacity determination, Pressure-Composition-Temperature (PCT) measurements, Thermodynamic and kinetic studies, Metal hydrides and nanoporous materials (carbons, zeolites, MOFs and polymers) | Gas storage, Gas separation and purification, Thermodynamic and kinetic studies, Nanoporous materials (carbons, zeolites, MOFs and polymers) | Gas adsorption isotherm determination, Specific surface area (BET) determination, Energy gas (H2, CH4) storage and separation, Thermodynamics of high pressure gas adsorption, Nanoporous materials (carbons, zeolites, MOFs, polymers and shales) | Carbon capture and storage, Hydrogen and natural gas storage, Gas solubility in ionic liquids, Nanoporous material characterization, Gas sorption on geological materials |
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