Table 1.
Optimization of the pore diameter by variation of reaction parameters.
|
Sample[a] |
Template[b] |
Swelling agent[c] |
n (CTAB)[d] [mmol] |
T[e] [°C] |
Vp [f] [cm3 g−1] |
Ap [g] [m2 g−1] |
dp [h] [nm] |
Particle diameter[i] [nm] |
|---|---|---|---|---|---|---|---|---|
|
P1 |
Pluronic P123 |
– |
0.11 |
25 |
0.84 |
975 |
2.1 |
103 |
|
P2 |
Pluronic P123 |
TMB |
0.11 |
25 |
1.60 |
1239 |
2.8 |
77 |
|
P3 |
Pluronic P123 |
cyclohexane |
0.11 |
25 |
0.86 |
738 |
2.5 |
86 |
|
P4 |
Pluronic P123 |
pentanol |
0.11 |
25 |
0.49 |
888 |
2.1 |
54 |
|
P5 |
Pluronic P123 |
TIB |
0.11 |
25 |
2.00 |
1306 |
5.1 |
150 |
|
P6 |
Pluronic L121 |
TIB |
0.11 |
25 |
1.38 |
1075 |
4.2 |
126 |
|
P7 |
Pluronic F127 |
TIB |
0.11 |
25 |
0.55 |
406 |
2.9 |
127 |
|
P8 |
Pluronic 31R1 |
TIB |
0.11 |
25 |
1.40 |
1413 |
4.2 |
570 |
|
P9 |
Pluronic P123 |
TIB |
0.11 |
10 |
1.01 |
795 |
4.7 |
132 |
|
P10 |
Pluronic P123 |
TIB |
0.11 |
50 |
1.42 |
1259 |
3.0 |
37 |
|
P11 |
Pluronic P123 |
TIB |
0.03 |
25 |
0.49 |
875 |
2.1 |
no particles |
|
P12 |
Pluronic P123 |
TIB |
0.30 |
25 |
1.23 |
1197 |
2.8 |
109 |
[a] All particle syntheses were performed using 100 mg of precursor; the procedure corresponds to the synthesis presented in the Experimental Section. [b] Template used in the particle synthesis for generating the pore system. [c] Hydrophobic additive for enlargement of the pore diameter; TMB is 1,3,5‐trimethylbenzene, TIB is 1,3,5 triisopropylbenzene. [d] Amount of CTAB in the reaction solution for the condensation reaction. [e] T is the reaction temperature during condensation reaction [f] V p is the pore volume calculated by the NLDFT method. [g] A p is the BET surface area. [h] d p is the pore diameter determined by the NLDFT‐method. [i] Particle diameter determined from TEM images.