2 research outputs found
Formation of Two-Dimensional Silver Cavity Array and Surface-Enhanced Raman Scattering of Adsorbed Molecules
High Efficiency Photoelectrocatalytic Methanol Oxidation on CdS Quantum Dots Sensitized Pt Electrode
A cadmium sulfide quantum dots sensitized
Pt (Pt–CdS) composite was synthesized using a solvothermal
method and characterized by transmission electron microscopy (TEM),
X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and
UV–vis diffuse reflectance spectroscopy. The catalytic properties
of the as-prepared electrode for methanol oxidation were evaluated
by cyclic voltammetry (CV), chronoamperometry, electrochemical impedance
spectrum (EIS) and photocurrent responses. The as-prepared Pt–CdS
electrode displayed a significant enhancement in the electrocatalytic
activity and stability for methanol oxidation in the presence of visible
light irradiation. The synergistic effect of both the electro- and
photocatalytic reaction contributes to this enhanced catalytic performance.
Our result suggests a new paradigm to construct photoelectrocatalysts
with high performance and good stability for direct methanol fuel
cells with the assistance of visible-light illumination