1 research outputs found
Synthesis Route to Supported Gold Nanoparticle Layered Double Hydroxides as Efficient Catalysts in the Electrooxidation of Methanol
This work describes a new one-step method for the preparation
of
AuNP/LDH nanocomposites via the polyol route. The novelty of this
facile, simple synthesis is the absence of additional reactants such
as reductive agents or stabilizer, which gives the possibility to
obtain phase-pure systems free of undesiderable effect. The AuNP formation
is confirmed by SEM, TEM, PXRD, and XAS; moreover, the electrochemical
characterization is also reported. The electrocatalytic behavior of
AuNP/LDH nanocomposites has been investigated with respect to the
oxidation of methanol in basic media and compared with that of pristine
NiAl-Ac. The 4-fold highest catalytic efficiency observed with AuNP/LDH
nanocomposites suggests the presence of a synergic effect between
Ni and AuNP sites. The combination of these experimental findings
with the low-cost synthesis procedure paves the way for the exploitation
of the presented nanocomposites materials as catalysts for methanol
fuel cells