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Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices
Published on: March 27, 2019
Preparation of activated ordered mesoporous carbons with a channel structure
Dingcai Wu1, Yeru Liang, Xiaoqing Yang
1Materials Science Institute, PCFM Laboratory, School of Chemistry and Chemical Engnieering, and Institute of Optoelectronic and Functional Composite Materials, Sun Yat-sen University, Guangzhou 510275, PR BChina.
Langmuir : the ACS Journal of Surfaces and Colloids
|March 1, 2008
Summary
Researchers developed activated ordered mesoporous carbons with a channel structure (AOMCs-CS) using CO(2) activation. The study details how carbon framework and activation levels influence the ordered structure and pore characteristics of these advanced carbon materials.
Area of Science:
- Materials Science
- Carbon Science
- Nanotechnology
Background:
- Ordered mesoporous carbons (OMCs) are crucial for various applications due to their unique pore structures.
- Developing OMCs with controlled porosity and high surface area remains a key challenge in materials science.
Purpose of the Study:
- To synthesize activated ordered mesoporous carbons with a channel structure (AOMCs-CS) via CO(2) activation.
- To investigate the influence of precursor structure and activation degree on the resulting material properties.
Main Methods:
- Preparation of ordered mesoporous carbon C-FDU-15.
- CO(2) activation of C-FDU-15 at varying burnoff levels.
- Characterization of pore structure, surface area, and volume using BET analysis.
Main Results:
- The continuous carbon framework of C-FDU-15 is vital for maintaining structural order during activation.
- Mild activation preserves the ordered structure, while higher burnoff generates larger mesopores and macropores.
- Optimized activation yielded AOMCs-CS with a BET surface area of 2004 m²/g, micropore volume of 0.50 cm³/g, and total pore volume of 1.22 cm³/g.
Conclusions:
- CO(2) activation is an effective method for producing AOMCs-CS with tunable pore structures.
- The study demonstrates a pathway to engineer high-surface-area carbon materials with potential applications in catalysis, adsorption, and energy storage.
