솔텍 | 샘플분석 | BET 비표면적 분석

1. Nitrogen gas is introduced into the sample, and the volume of gas adsorbed on the surface (= adsorption amount) is measured.
ㅤ - Unit of adsorption amount: cm³/g (volume of nitrogen adsorbed per gram of sample).

2. The adsorption amount is converted into specific surface area using the BET equation.
ㅤ - Adsorption amount is proportional to the specific surface area.

ㅤ - The greater the adsorption amount, the higher the specific surface area.
ㅤ - The lower the adsorption amount, the smaller the specific surface area.

3. From the adsorption amount, information about pore volume and pore size, in addition to specific surface area, can also be obtained.

* Analysis Conditions

- Analysis Gas: Nitrogen (Purity: 99.999%)

- Pressure: 0-1 bar

- Temperature: 77 K (using liquid nitrogen)

- Analysis Equipment: BELSORP MINI X / BELSORP MAX (Manufacturer: MicrotracBEL)

- Enables verification of the pore sizes present in the sample.
- Classification by pore size :
* Micropore: ≤2 nm (e.g., activated carbon, zeolites)
* Mesopore: 2-50 nm (e.g., TiO₂, Al₂O₃)
* Macropore: ≥50 nm (e.g., porous carbon structures, silica)

- Pore size distribution types vary by analysis range
* BJH plot: 2-180 nm (meso/macropore analysis)
* MP plot: 0.4-2 nm (micro)
* HK plot: 0.4-4 nm (micro)
* NLDFT plot: 0.4-460 nm (micro/meso/macro)

- Please check the type of plot required on the application form.
- If uncertain or if there are no specific requests, the BJH plot will be provided by default.
- For detailed inquiries about analysis items, contact us at: (02-2043-1955, nrchin@soletek.co.kr).
- Results will be delivered as an Excel file including the following: Graphs, Raw data table

Submitting a Request for Analysis

Contact us by phone or email: (02-2043-1955, nrchin@soletek.co.kr)
- When submitting a request, please complete the attached analysis request form and send it via email or along with the sample via courier.

Shipping Address

Bldg B, 2F, 4 Dongnam-ro 29-gil, Songpa-gu, Seoul 05721, South Korea
(Soletek Trading Co., Ltd.)

- To confirm the exact schedule, be sure to contact the manager when submitting a request.

Contact Information

(02-2043-1955, nrchin@soletek.co.kr)

1. Materials with high specific surface area (≥100 m²/g):

ㅤ- Required amount: 0.1 g (powder form).

ㅤ- Materials with pores: Activated carbon, zeolites, TiO₂, Al₂O₃, and other substances with micro or mesopores.

ㅤ- To ensure accuracy and reproducibility, the sample quantity should be at least 0.05 g.

2. Materials with low specific surface area (≤100 m²/g) or unknown properties :
ㅤ - Required amount: ≥0.3 g (powder form).
ㅤ - Non-porous materials: Substances without surface pores (non-porous).
ㅤ - Materials with pores in the micrometer (μm) or millimeter (mm) range, such as sponges or urethane foam.

ㅤ - Non-porous substrates, wires, or film-like materials.

ㅤ - For consultations, please contact the person in charge.

Precautions

- The required sample quantity may vary depending on the sample.

- Providing a sufficient amount is crucial for smooth analysis, especially if there is no preliminary information on the sample's specific surface area or pore size.

- Please pack the samples in glass or plastic bottles whenever possible.

- Avoid using zipper bags, as contents may spill during transit.

- The sample cell's inlet width is approximately 5 mm. Samples larger than this must be cut into smaller pieces before sending.

1. Nitrogen gas is introduced into the sample, and the volume of gas adsorbed on the surface (= adsorption amount) is measured.
ㅤ - Unit of adsorption amount: cm³/g (volume of nitrogen adsorbed per gram of sample).

2. The adsorption amount is converted into specific surface area using the BET equation.
ㅤ - Adsorption amount is proportional to the specific surface area.
ㅤ - The greater the adsorption amount, the higher the specific surface area.
ㅤ - The lower the adsorption amount, the smaller the specific surface area.

3. From the adsorption amount, information about pore volume and pore size, in addition to specific surface area, can also be obtained.

* Analysis Conditions

- Analysis Gas: Nitrogen (Purity: 99.999%)

- Pressure: 0-1 bar

- Temperature: 77 K (using liquid nitrogen)

- Analysis Equipment: BELSORP MINI X / BELSORP MAX (Manufacturer: MicrotracBEL)

- Enables verification of the pore sizes present in the sample.
- Classification by pore size:
* Micropore: ≤2 nm (e.g., activated carbon, zeolites)
* Mesopore: 2-50 nm (e.g., TiO₂, Al₂O₃)
* Macropore: ≥50 nm (e.g., porous carbon structures, silica)

- Pore size distribution types vary by analysis range:
* BJH plot: 2-180 nm (meso/macropore analysis)
* MP plot: 0.4-2 nm (micropore)
* HK plot: 0.4-4 nm (micropore)
* NLDFT plot: 0.4-460 nm (micro/meso/macro)

- Please check the type of plot required on the application form.
- If uncertain or if there are no specific requests, the BJH plot will be provided by default.
- For detailed inquiries about analysis items, contact us at: (02-2043-1955, nrchin@soletek.co.kr).
- Results will be delivered as an Excel file including the following: Graphs, Raw data table

Submitting a Request for Analysis

: Contact us by phone or email: (02-2043-1955, nrchin@soletek.co.kr)
- When submitting a request, please complete the attached analysis request form and send it via email or along with the sample via courier.

Shipping Address

: Bldg B, 2F, 4 Dongnam-ro 29-gil, Songpa-gu, Seoul 05721, South Korea
(Soletek Trading Co., Ltd.)

- To confirm the exact schedule, be sure to contact the manager when submitting a request.

Contact Information

Phone: 02-2043-1955
Email: nrchin@soletek.co.kr

1. Materials with high specific surface area (≥100 m²/g):
ㅤ - Required amount: 0.1 g (powder form).

ㅤ - Materials with pores: Activated carbon, zeolites, TiO₂, Al₂O₃, and other substances with micro or mesopores.

ㅤ - To ensure accuracy and reproducibility, the sample quantity should be at least 0.05 g.

2. Materials with low specific surface area (≤100 m²/g) or unknown properties :
ㅤ - Required amount: ≥0.3 g (powder form).
ㅤ - Non-porous materials: Substances without surface pores (non-porous).
ㅤ - Materials with pores in the micrometer (μm) or millimeter (mm) range, such as sponges or urethane foam.

ㅤ - Non-porous substrates, wires, or film-like materials.

ㅤ - For consultations, please contact the person in charge.

Precautions

- The required sample quantity may vary depending on the sample.
- Providing a sufficient amount is crucial for smooth analysis, especially if there is no preliminary information on the sample's specific surface area or pore size.
- Please pack the samples in glass or plastic bottles whenever possible.
- Avoid using zipper bags, as contents may spill during transit.

- The sample cell's inlet width is approximately 5 mm. Samples larger than this must be cut into smaller pieces before sending.