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AMI Micro-300 Series BET Surface Area and Pore Size Analyzer

Outline

The AMI 300 Series can accurately produce surface area and pore size results of powder materials. According to the different test functions, this series of instruments are divided into three types, there are A, B, and C. Every analysis station has its own dedicated dosing manifold for optimal analysis duration. The C type is configured with 1 torr or 0.1 torr high-sensitive pressure sensors and turbo molecular pump with ultimate pressure of 10-8 Pa. The three analysis stations can also be used for in-situ sample preparation to avoid sample contamination. It can effectively take microporous analysis of microporous materials such as molecular sieve, catalyst, activated carbon, and other microporous materials. 

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Hardware and Operation

Specific surface area: >0.0001m2/g

Pore size: 0.35nm - 500nm

Power: 110~220V, 50/60Hz

Vacuum System

Minimum relative pressure: 10-8, some samples are reached 10-9.

Manifold: Multi-optimized design to provide the most suitable dead volume

Flexible vacuum configuration:

Mechanical oil pump is standard. It can be upgraded to an independent turbomolecular pump for each analysis ports.

 

Techniques

Clear tabular reports include:
 Adsorption and desorption isotherms
 Single-/Multipoint BET surface area
 Langmuir surface area
 STSA-surface area
 pore size distribution according to BJH
 t-plot
 Dubinin-Radushkevich
 Horvath-Kawazoe
 Saito-Foley

Features

Test Module
Internal temperature of test module can be
controlled through Real-time monitoring,
ensuring accuracy of adsorption detection.
Pressure Sensor
Micro 300C with 1torr (selectable 0.1torr)
makes the partial pressure of P/P0 up to 10-7
- 10-8 (N2/77K) in the physical adsorption
analysis.
Saturated Vapor Pressure P0
Using independent P0 pressure sensor for P0
value by inching test, guarantees the
reliability of experimental data. Atmospheric
pressure input

Specifications

Feature Meso 300A Micro 300B Micro 300C
Adsorbed Gas Non corrosive gases, such as N2, Ar, Kr, H2, O2, CO2, CO, NH3, CH4, etc.
Pressure Sensor at
Analysis Station		 1000 torr, 3 1000 torr, 3;
10 torr, 1 (optional 2 or 3);
1 torr(0.1torr can be selected),1 (optional 2 or 3)		 1000 torr, 3;
10 torr, 3;
1 torr (0.1torr can be selected), 3
Accuracy: ±0.15% (F.S.)
Pressure Sensor at P0 Station 1000 torr,3
(Accuracy: ±0.15% (F.S.)
Degas System The standard configuration is 3 stations in-situ degassing, which can simultaneously degas 3 samples under vacuum heating;
Another optional external 4-station vacuum heating degassing machine;
Degas Temperature Ambient to 400 ℃. Free to set up target temperature.
Cold Trap 1
Vacuum Pump Two-stage rotary vane mechanical
vacuum pump,
the ultimate pressure is
6.7*10-2 Pa		 Two-stage rotary vane mechanical
vacuum pump, the ultimate
pressure is 6.7*10-2 Pa, optional turbo
molecular pump		 Turbo molecular pump (ultimate pressure 10-8 Pa) and front
mechanical vacuum pump
(ultimate pressure is 6.7*10-2 Pa)
Analysis Port Samples on the 3 analysis bits can be tested at same time (including P0 test).
Test Principle Gas adsorption by static-volumetric analysis
Measurement Range of
Specific Surface Area		 0.0005 m2/g to the infinity;
Standard sample repeat accuracy is less than ± 1.0%		 0.0001m2/g to the infinity;
Standard sample repeat accuracy is less than ± 1.0%		 0.0001m2/g to the infinity;
Standard sample repeat accuracy is less than ± 1.0%
Test Range of Pore Diameter 0.35 nm-500 nm; Pore dimension repeatability is less than 0.2 nm in the accurate analysis of materials with pore size greater than 2 nm 0.35 nm-500 nm; Pore dimension repeatability is less than 0.02 nm in the accurate analysis of micropore 0.35 nm-2 nm 0.35 nm-500 nm; Pore dimension repeatability is less than 0.02 nm in the accurate analysis of micropore 0.35 nm-2 nm
Minimum Pore Volume 0.0001 cm3/g
Range of Relative Pressure P/P0 10-5-0.998 10-6/10-8-0.998 10-8-0.998
Overall Dimension Depth: 870 mm; width: 570 mm; height: 890 mm; weight: 80 Kg -90 Kg
Ambient Temperature 15-40 oC
Related Humidity 30%-60%
Electrical Supply AC220 V ± 20 V, 50/60 HZ, maximum power 300W;
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