Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 14, Issue 43, Pages 48986-48994Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.2c13904
Keywords
hybrid nanostructures; Pd-CoxOy; hydrodechlorination; hollow nanoreactors; heteroaggregate
Funding
- National Natural Science Foundation of China [22078099, 21776090]
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Pd-CoxOy heteroaggregate-encapsulated hollow porous silica nanoreactors (Pd-CoxOy@HPSNs) were synthesized using a reverse microemulsion system. The synthesized Pd-CoxOy@HPSNs showed enhanced efficiency in the hydrodechlorination of chlorophenols due to the synergistic effect between Pd and CoxOy and the protection provided by the silica shells.
Pd-CoxOy heteroaggregate-encapsulated hollow porous silica nanoreactors (Pd-CoxOy@HPSNs) were synthesized by a reverse microemulsion system. The key design of the developed reverse microemulsion system is to use poly-(ethyleneimine) in the water droplets as the void templates for silica deposition and for anchoring the catalytic functionality inside the hollow silica nanospheres. The synthesized Pd-CoxOy@ HPSNs contain -3 nm Pd-CoxOy hybrid nanostructures in -10 nm central cavities of silica nanospheres and illustrated a significantly promoted efficiency for hydrodechlorination of a series of chlorophenols into phenols under mild reaction conditions. The catalytic enhancement of Pd-CoxOy@HPSNs is ascribed to the synergistic effect between Pd and CoxOy and the protection of silica shells to the inner catalytic functionality.
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