title: Electrocatalytic Oxidation of Formic Acid in an Alkaline Solution with Graphene-Oxide- Supported Ag and Pd Alloy Nanoparticles.
abstract: The electrocatalytic activities of metal-decorated graphene oxide (GO) catalysts were investigated. Electrochemically reduced GO-S-(CH2)4-S-Pd [ERGO-S-(CH2)4-S-Pd] and GO-S-(CH2)4-S-PdAg alloy [ERGO-S-(CH2)4-S-PdAg] were obtained through the electrochemical reduction of GO-S-(CH2)4-S-Pd and GO-S-(CH2)4-S-PdAg in a pH 5 PBS solution. It was demonstrated that the application of ERGO-S-(CH2)4-S-Pd and ERGO-S-(CH2)4-S-PdAg used in a modified GCE improves the electrocatalytic oxidation of formic acid. The addition of an Ag nanoparticle with a carbon chain-Pd in the electrode provides an electrode with very interesting properties for the electrocatalytic oxidation of formic acid. The ERGO-S-(CH2)4-S-Pd and ERGO-S-(CH2)4-S-PdAg were characterized via X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). ERGO-S-(CH2)4-S-Pd and ERGO-S-(CH2)4-S-PdAg can be employed for the electrocatalytic oxidation of formic acid. The electrochemical behaviors of this electrode were investigated using cyclic voltammetry (CV), chronoamperometry (CA) and electrochemical impedance spectroscopy (EIS).
authors.forename: Hyoung Soon
authors.initials: HS
authors.lastname: Han
authors.forename: Mira
authors.initials: M
authors.lastname: Yun
authors.forename: Haesang
authors.initials: H
authors.lastname: Jeong
authors.forename: Seungwon
authors.initials: S
authors.lastname: Jeon
mesh_terms: D000468:Alkalies / Q000737:chemistry; D000497:Alloys / Q000737:chemistry; D002384:Catalysis; D055664:Electrochemical Techniques; D004566:Electrodes; D005561:Formates / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry*; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry; D010165:Palladium / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D012996:Solutions
chemical_list: D000468:Alkalies; D000497:Alloys; D005561:Formates; D010087:Oxides; D012996:Solutions; C030544:formic acid; D012834:Silver; D010165:Palladium; D006108:Graphite