Polymer particles with controllable and complex structures for high immobilization of noble-metal nanoparticles

Magnetic polymer bowl for enhanced catalytic activity and recyclability

“…The interior voids and surface holes are created during the removal of decane. 19 Fig. S5 (ESI † ) shows an SEM image of the particles obtained through the thermal treatment and washing in ethanol and isoamyl alcohol, demonstrating that the core–shell spheres were successfully transformed into bowl-like particles with hollow voids and large surface openings.…”

“…The S of a magnetic polymer bowl can be expressed as S = 4π R polymer 2 − 2π R polymer 2 (1 − cos θ polymer ) + 2π R void 2 (1 − cos θ void ). 19 The additional relations among R polymer , R void , θ polymer , and θ void are given as D H = 2 R polymer sin θ polymer = 2 R void sin θ void by taking the diameter of the single opening ( D H ) on the surface of the bowl into consideration. The value of θ polymer could be theoretically calculated using R polymer and D H , which were determined from the TEM images for the magnetic polymer bowls.…”