10.1002/ejic.201800078
European Journal of Inorganic Chemistry
FULL PAPER
Template fabrication: The polystyrene spheres where fabricated by a
surfactant-assisted emulsion polymerization approach modified from
literature.[23] Briefly, 190 mL milli-Q water was added to a two neck round
bottom flask equipped with a reflux condenser and an Ar inlet. The water
was heated to 80 °C and purged with Ar to remove oxygen before 20 mL
of styrene was added to the water. Previously, the styrene was extracted
three times with a 1 M aqueous NaOH solution and three times with
water to remove the polymerization inhibitor. Subsequently, 92 mg
sodium dodecylsulfate and 617 mg sodium persulfate were dissolved in
10 mL water each and the solutions were rapidly added to the
water/styrene mixture. The reaction mixture was stirred under an Ar
atmosphere at 80 °C for 5 h. Finally, the polystyrene suspension was
cleaned by three successive centrifugation/ redispersion steps. In the last
step of the template fabrication the sedimented polystyrene spheres were
dried at 50 °C overnight.
Acknowledgements
This work was supported by the MAXNET Energy consortium of
Max Planck Society, the Cluster of Excellence RESOLV (EXC
1069) funded by the Deutsche Forschungsgemeinschaft (DFG)
and the Fonds der Chemischen Industrie (FCI). Advice and
Support by G. Dodekatos is gratefully acknowledged by the
authors. The authors acknowledge Hans Bongard for recording
high resolution SEM images.
Keywords: photocatalysis, halide perovskite, template synthesis
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