Fully automated multi-purpose chemisorption analyzer for BET surface area, active metal surface area, dispersion, and catalyst characterization using TPR/TPO/TPD/pulse methods.
The AMI-300 is a fully automated, multi-purpose chemisorption analyzer designed for the comprehensive characterization of catalysts and support materials. It combines BET surface area, active metal surface area, metal dispersion, pulse chemisorption, and temperature-programmed techniques (TPR, TPO, TPD, TPSR) in a single automated platform.
The AMI-300 from 3P Instruments is a fully automated chemisorption analyzer purpose-built for the comprehensive characterization of heterogeneous catalysts, catalyst supports, and metal oxide materials. Its multi-technique architecture integrates temperature-programmed methods (TPR, TPO, TPD, TPSR) with BET surface area measurement and pulse chemisorption into a single automated platform, eliminating the need for multiple dedicated instruments.
The instrument uses up to 8 independent mass flow controllers to blend pure and carrier gases for each experimental protocol. A programmable tube furnace heats the quartz sample tube at controlled rates from ambient to 1100°C, while a sensitive thermal conductivity detector (TCD) continuously monitors gas composition changes in real time.
The AMI-Win software provides a complete measurement environment, enabling users to define and store complex multi-step experimental sequences — from initial pre-treatment through chemisorption to TPD desorption — with full automation and unattended overnight operation capability.
| Methods | BET, pulse chemisorption, TPR, TPO, TPD, TPSR, active metal area |
| Temperature Range | Ambient – 1100°C |
| Heating Rate | 0.1 – 50°C/min (programmable) |
| Detector | TCD (thermal conductivity detector) |
| Sample Tubes | Quartz or Pyrex, 6–12 mm OD |
| Gas Inlets | Up to 8 independent mass flow controllers |
| Pulse Loop | Fixed volume, 250 µL – 5 mL |
| Cooling | Optional Peltier cold trap / liquid N₂ trap |
| Data Acquisition | Continuous, real-time |
| Software | AMI-Win (Windows), full automation |
| Balance | Optional microbalance integration |
| Safety | Automatic gas shut-off on fault |
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