1 research outputs found
Nanofiber-Supported Palladium NanocubesToward Highly Active and Reusable Catalyst
Electrospun nanofibers were used to support palladium
nanocubes,
resulting in a highly active, stable, and reusable catalyst. The system
proposed herein offers significant advantages compared to catalysts
in the form of nanoparticles suspension. The porous, solvent permeable
structure of the nanofiber mat ensures uniform and stable time distribution
of palladium nanoparticles; preventing coalescence and allowing multiple
use of the catalyst. The proposed cross-linked poly(vinyl alcohol)
nanofiber mat loaded with Pd nanocubes during the nanofiber preparation
step is a macroscopic structure of intrinsically nanostructural character
of the catalyst that can be easily transferred between different solutions
without compromising its effectiveness in consecutive cycles. Thus,
obtained system was characterized with high catalytic activity as
tested on a model example of 4-nitrophenol (4-NP) reduction by NaBH4 to 4-aminophenol (4-AP). It is shown that loading nanofibers
with Pd nanocubes during electrospinning resulted in a significantly
more stable system compared to surface modification of obtained nanofibers
with nanocube suspension