4.6 Article

Pd-FexOy Hybrid Nanoparticles Encaged Hollow Mesoporous Silica Nanoreactors for Reduction of Nitroarenes to Aminoarenes

Journal

JOURNAL OF PHYSICAL CHEMISTRY C
Volume 125, Issue 7, Pages 4001-4009

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.0c11161

Keywords

-

Funding

  1. National Natural Science Foundation of China [22078099, 21776090]
  2. Natural Science Foundation of Shanghai [17ZR1440500]

Ask authors/readers for more resources

In this study, Pd-FexOy@HMSNs nanoparticles were successfully synthesized with different Pd/Fe ratios, showing significantly enhanced catalytic performance for the reduction of nitroarenes. The improved catalytic activity can be attributed to the synergistic effect of Pd and FexOy as well as the confinement effect of functional nanoparticles inside the hollow cavities.
In this work, Pd-FexOy hybrid nanoparticles encaged hollow mesoporous silica nanoreactors (Pd-FexOy@HMSNs) are synthesized, which features similar to 3-4 nm Pd-FexOy hybrid nanoparticles inside similar to 17 nm hollow cavities of similar to 32 nm mesoporous silica nanoreactors. By employing Pd and Fe ions containing polymer micelles as templates for silica deposition, hollow mesoporous silica nanoreactors and the residence of functional nanoparticles inside hollow cavities are simultaneously obtained. Through adjusting the ratios of Pd2+/Fe3+ in micelles, various Pd-FexOy@HMSNs with different Pd/Fe ratios are synthesized and tested for reduction of nitroarenes with NaBH4. Relative to Pd@HMSNs, FexOy@HMSNs and their physical mixtures, Pd-1-(FexOy)(1/x)@HMSNs illustrate a greatly enhanced catalytic performance for reductions of a series of substituted nitroarenes with NaBH4 to aminoarenes. The catalytic enhancement of Pd-FexOy@HMSNs is ascribed to the synergistic effect of Pd and FexOy as well as the confinement effect of functional nanoparticles inside hollow cavities.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available