On November 3, 2021, the "Creation and Application of Ordered Mesoporous Polymers and Carbon Materials" project led by Zhao Dongyuan, academician of the Chinese Academy of Sciences and professor of the Department of Chemistry of Fudan University, won the first prize of the National Natural Science Award. In this project, Academician Zhao Dongyuan's team creatively proposed the idea of organic-organic self-assembly and a new strategy of multiplexed collaborative co-assembly, achieving accurate control of functional mesoporous polymers and carbon materials. Ordered mesoporous materials have broad application prospects in adsorption, separation, sensors, catalysis, energy storage, solar cells, biomedicine and other fields [1]. Academician Zhao Dongyuan even envisions applying mesoporous materials to people’s daily clothing. The research results in the field of porous materials are regarded as milestone progress by international colleagues, but Academician Zhao Dongyuan smiled and said: "In addition to making holes, there is nothing else."
1. Mesoporous TiO2 is used in electrode materials and photocatalysis
The mesoporous TiO2 microsphere anode carefully designed by Academician Zhao Dongyuan and his team for pseudocapacitance (Figure 1) achieves high tap density, gravimetric capacity and volumetric capacity, and also provides an easily accessible surface area, which is conducive to electrolyte Efficient entry[2][2]
Academician Zhao Dongyuan and Professor Pingyun Feng of the University of California and others introduced controllable defects into the TiO2 mesoporous structure, and designed and prepared a defect-ordered mesoporous TiO2 microsphere, which not only provides effective mass transportation, but also improves the utilization rate of light. , thereby significantly increasing the H2 production rate. The maximum evolution rate of H2 can reach 19.8 mmol g-1 h-1, and it has excellent stability under sunlight, showing obvious advantages (Figure 2) [3][3]
2. Mesoporous SiO2 is applied to bionic materials
Academician Zhao Dongyuan and researcher Li Wei used thermodynamics-mediated method to synthesize a series of ultra-small organic-inorganic hybrid nanoparticles with uniform particle size and monodisperse. Experimental results show that compared with pure polymer monomers, the mechanical properties of organic-inorganic hybrid SiO2/micelle nanoparticles are significantly improved (Figure 3) and can be used as biomimetic materials due to their excellent toughness [4][4]
3. Mesoporous carbon is used in electrode materials
Academician Zhao Dongyuan and his team successfully synthesized monodispersed mesoporous carbon nanospheres with ultra-high nitrogen content (15.6 wt%) through aqueous emulsion polymerization self-assembly method, which were used as anodes for sodium-ion batteries (Figure 4), demonstrating outstanding performance. excellent rate performance (117 mAh g-1 at a high current density of 3 A g-1) and high reversible capacity (373 mAh at 0.06 A g-1 g-1), is a promising energy storage material [5][5]
Bailingwei exclusively sells new functional mesoporous materials developed by Academician Zhao Dongyuan of Fudan University:
Covering three materials: silica, carbon, and titanium dioxide;
The mesoscopic structure is highly ordered, with high specific surface area, large pore volume, and narrow pore size distribution;
The surface is easy to be organically functionalized and can be modified with sulfhydryl, amino, epoxide, imidazole and other groups;
The particles have good dispersion and are not easy to agglomerate and settle, which facilitates further research on catalysis, adsorption, and separation of mesoporous materials in the future.
Mesoporous TiO2 (13463-67-7)
Application areas: electrode materials (such as dye-sensitized solar cells); photocatalysts (such as photocatalytic hydrogen production, photocatalytic degradation of organic pollutants, etc.)
| Product name | Specification | Item number |
|---|---|---|
| Mesoporous TiO2 microspheres | diam: 600-2500 nm, SSA:80-157 m2 /g, pore size: 5-12 nm, pore volume:0.2-0.56 cm2 /g | 2748683 |
Mesoporous SiO2 (7631-86-9)
Application areas: catalyst carriers (such as precious metals, metal oxides, etc.); pollutant adsorbents and detectors (such as H2S, formaldehyde, algae toxins, etc.); nanomedicine carriers (such as cytochrome C, serum protein, etc.)
| Product name | Specification | Item number |
|---|---|---|
| Mesoporous silica SBA-15 | diam: 500-2000 nm, SSA: 700-1100 m2/g, pore size: 6-11 nm, pore volume: 0.6-1.3 cm3/g | 2748670 |
| Mesoporous silica SBA-16 | diam:＞1000 nm, SSA: 600-960 m2/g, pore size: 5-12 nm, pore volume: 0.50-0.95 cm3/g | 2748671 |
| Mesoporous silica nanosphere | diam: 60-250 nm, SSA: 410-680 m2/g, pore size: 2.8-13.3 nm, pore volume: 0.57-1.66 cm3/g | 2748679 |
| Sea urchin-like mesoporous silica nanosphere | diam: 120-250 nm, SSA: 200-450 m2/g, pore size: 2.0 - 3.0 nm, pore volume: 0.35-0.56 cm3/g | 2748694 |
| Hollow silcia nanosphere | diam: 200-800 nm, SSA: 350-800 m2/g, pore size: 2.0-4.0 nm, pore volume: <1.4 cm3/g | 2748684 |
Mesoporous carbon (7440-44-0)
Application areas: oil-water separators; electrode materials (such as batteries and supercapacitors); catalyst carriers (such as precious metals, metal oxides, etc.); organic pollutant adsorbents (such as acetone, benzene, rhodamine B, etc.); nanofilters ( Such as inorganic nanoparticles, biomolecules)
| Product name | Specification | Item number |
|---|---|---|
| Mesoporous carbon FDU-15 | diam:＞1000 nm, SSA: 540-1500 m2/g, pore size: 3.5-8 nm, pore volume: 0.4-1.31 cm3/g | 2748672 |
| Mesoporous carbon FDU-16 | diam:＞1000 nm, SSA: 510-900 m2/g, pore size: 3.7-6.8 nm, pore volume: 0.4-0.85 cm3/g | 2748673 |
| Mesoporous carbon C-CS | diam:＞1000 nm, SSA: 1000-2300 m2/g, pore size: 5.8-6.8 nm, pore volume: 0.7-2.0 cm3/g | 2748676 |
References
向阳 翟
