Supplementary Material for Chemical Communications
This journal is © The Royal Society of Chemistry 2003
Supplementary information for;
A facile synthesis of bimodal mesoporous silica and its replication for bimodal
mesoporous carbon
Jinwoo Lee, Jaeyun Kim and Taeghwan Hyeon*
National Creative Research Initiative Center for Oxide Nanocrystalline Materials and School of Chemical
Engineering, Seoul National University, Seoul 151-744, Korea; E-mail: thyeon@plaza.snu.ac.kr
Figure S1. Pore size distribution of Meso-nano-S silica calculated from BJH (BarrettJoyner-Halender) theory on the basis of N2 desorption data.
2.5
Pore Volume (cc/g)
2.0
1.5
1.0
0.5
0.0
0
20
40
60
Pore Diameter (nm)
Figure S2. Low-angle XRD pattern of Meso-nano-S silica.
1000
800
Intensity
600
400
200
0
0
2
4
6

8
10
80
Supplementary Material for Chemical Communications
This journal is © The Royal Society of Chemistry 2003
Figure S3. Low-angle XRD pattern of Meso-nano-C carbon (dspacings= 4.66 nm).
1400
1200
1000
Intensity
800
600
400
200
0
0
2
4
6
8
10
2
Figure S4. Nitrogen adsorption-desorption isotherms for the Mesoporous carbon
prepared using 0.7cc phenol per g of Meso-nano-S. Inset: Corresponding pore size
distribution calculated from BJH (Barrett-Joyner-Halender) theory on the basis of N2
adsorption data. The average pore size and surface area of this unimodal mesoporous
carbon are 4.24 nm and 1051 m2/g, respectively.
800
Adsorption
Desorption
700
500
4
400
Pore volume (cc/g)
Volume Adsorbed (cc/g)
600
300
200
3
2
1
100
0
0
5
10 15 20 25 30 35 40 45 50 55 60
Pore Diameter(nm)
0
0.0
0.2
0.4
0.6
Relative Pressure (P/Po)
0.8
1.0
Supplementary Material for Chemical Communications
This journal is © The Royal Society of Chemistry 2003
Text S1. Experimental procedure for the Synthesis of Meso-nano-C
1 g sample of as-synthesized Meso-nano-S was dispersed in 20 ml of 95% ethanol containing 1 ml of
concentrated HCl solution, in order to extract the surfactant and sodium ions. After the extraction was
accomplished by means of stirring, the powder was retrieved by filtration and dried in an oven at 100 oC
for 12 h. Then, 1 g of dried Meso-nano-S silica was dispersed in 5 ml of H2O containing 0.2 g of
AlCl3·6H2O and the resulting mixture was stirred for 30 min at room temperature to generate acidic
aluminum sites. After complete drying in an oven at 80 oC, the precipitate was calcined in air at 550 oC, in
order to obtain the Meso-nano-S aluminosilicate. The desired amount of phenol was infiltrated into the
mesopores of Meso-nano-S aluminosilicate by heating at 100 oC under a static vacuum. The resulting
phenol/Meso-nano-S aluminosilicate composite and excess para-formaldehyde were reacted in an
autoclave at 140 oC for 24 h. The composite was heated at 1 oC /min to 140 oC and held at this
temperature for 5 h under an argon atmosphere. Afterwards, the composite was pyrolyzed by heating at
800 oC for 3 h under a nitrogen atmosphere. The dissolution of the Meso-nano-S aluminosilicate template,
using 5 wt% HF solution diluted with 50% ethanol and 50% H 2O, generated mesoporous carbon Mesonano-C.