title: High Efficiency Photoelectrocatalytic Methanol Oxidation on CdS Quantum Dots Sensitized Pt Electrode.
abstract: 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.
authors.affiliation: School of Materials Science and Chemical Engineering, Ningbo University , Ningbo 315211, China.
authors.forename: Chunyang
authors.initials: C
authors.lastname: Zhai
authors.affiliation: School of Materials Science and Chemical Engineering, Ningbo University , Ningbo 315211, China.|Department of Chemistry, University of Toronto , Toronto M5S 3H6, Canada.
authors.forename: Mingshan
authors.initials: M
authors.lastname: Zhu
authors.affiliation: College of Pharmacy, Chemistry Teaching & Research, Suzhou Health College , Suzhou 215009, China.
authors.forename: Fenzhi
authors.initials: F
authors.lastname: Pang
authors.affiliation: College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China.
authors.forename: Duan
authors.initials: D
authors.lastname: Bin
authors.affiliation: Department of Chemistry, University of Toronto , Toronto M5S 3H6, Canada.
authors.forename: Cheng
authors.initials: C
authors.lastname: Lu
authors.affiliation: Department of Chemistry, University of Toronto , Toronto M5S 3H6, Canada.
authors.forename: M Cynthia
authors.initials: MC
authors.lastname: Goh
authors.affiliation: College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Yang
authors.affiliation: School of Materials Science and Chemical Engineering, Ningbo University , Ningbo 315211, China.|College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China.
authors.forename: Yukou
authors.initials: Y
authors.lastname: Du
keywords: cadmium sulfide; direct methanol fuel cells; photoelectrocatalysts; quantum dots; visible light