Mesoporous spherical silica encapsulating Pd nanoparticles prepared by CO2-induced mircoemulsion and catalytic application in Suzuki coupling reaction

- The compressed CO2 can induce to form a microemulsion.
- The mesoporous spherical silica was synthesized by CO2-induced microemulsion.
- The morphology of mesoporous silica can be tuned by changing CO2 pressure.
- The Pd NPs can be encapsulated inside the spherical silica.
- The core-shell structure Pd catalyst was effective for Suzuki coupling reaction.