2. Experimental section
2.1. Chemicals and materials
Tetraethylorthosilicate (P99.0%), aluminum nitrate (P98%),
poly(ethylene glycol)-block-poly(propylene glycol)-block-poly
(ethylene glycol) PEO20–PPO70–PEO20 (Pluronic P123), and
1-butanol (anhydrous, 99.8%), octamethylcyclotetrasiloxane (D4)
(98%) were purchased from Sigma–Aldrich. Concentrated nitric
acid (HNO3, 68–70%) was purchased from J.T. Baker. ZSM-5
(CBV-8014) (Si:Al = 40) was purchased from Zeolyst International.
Calcination of ZSM-5 was performed at 550 C (heating rate
10 C/min) for 4 h prior to use.