tailieunhanh - Platinum nanoparticles–manganese oxide nanorods as novel binary catalysts for formic acid oxidation

The current study proposes a novel binary catalyst system (composed of metal/metal oxide nanoparticles) as a promising electrocatalyst in formic acid oxidation. The electro-catalytic oxidation of formic acid is carried out with binary catalysts of Pt nanoparticles (nano-Pt) and manganese oxide nanorods (nano-MnOx) electrodeposited onto glassy carbon (GC) electrodes. Cyclic voltammetric (CV) measurements showed that unmodified GC and nano-MnOx/GC electrodes have no catalytic activity. While two oxidation peaks were observed at nano-Pt/GC electrode at ca. and V (corresponding to the direct oxidation of formic acid and the oxidation of the poisoning CO intermediate, respectively). The combined use of nano-MnOx and nano-Pt results in superb enhancement of the direct oxidation pathway. Nano-MnOx is shown to facilitate the oxidation of CO (to CO2) by providing oxygen at low over-potential. This leads to retrieval of Pt active sites necessary for the direct oxidation of formic acid. The higher catalytic activity of nanoMnOx/nano-Pt/GC electrode (with Pt firstly deposited) compared to its mirror image electrode (., with MnOx firstly deposited, nano-Pt/nano-MnOx/GC) reveals that the order of the electrodeposition is an essential parameter. | Platinum nanoparticles–manganese oxide nanorods as novel binary catalysts for formic acid oxidation

• Hoá học
• CO oxidation
• Manganese oxides
• Binary catalysts
• Formic acid oxidation
• Novel binary catalysts
• Journal of Chemistry
• Aftertreatment systems
• Diesel oxidation catalyst
• Bimetallic catalyst
• Commercial monolith
• Binary oxide catalyst structure
• Manganese oxide octahedral molecular sieves
• Low temperature CO oxidation
• Advanced CuO
• OMS 2 catalyst
• Mars van Krevelen mechanism
• Journal of Science and Technology
• Co oxidation reaction activity of Pt cluster catalysts
• Pt cluster catalysts on Ti0
• 9MO0
• 1O2 support
• Cluster of Pt atoms
• The positively charged
• Microwave irradiation
• 4 nitrophenol oxidation
• 2 (2 benzothiazolylthio)ethoxy group
• UV Vis elemental analysis
• Mesoporous materials
• Metal organic frameworks
• Structured catalysts
• Cyclohexene oxidation
• Situ solvothermal deposition
• Metal precursor
• Vietnam Journal of Science and Technology
• Bài viết khoa học
• Tạp chí Khoa học Công nghệ Việt Nam
• BMC Chemistry
• Acid modification
• FT IR spectroscopy
• XRD method
• Water vapor adsorption
• Palladium–copper catalysts
• Report medicine
• traditional medicine
• scientific reports
• oxidation
• Crystal structure
• bacteria
• Co Sputtering
• Sputtering Pressure
• TiN based coatings
• Adding aluminium
• Oxidation resistance
• Oxidation processes
• Cobalt impregnated
• Spent coffee ground biochar
• Co SCG biochar
• Hydroxyl radical
• Sulfate radical based AOPs
• Báo cáo lâm nghiệp hay
• cách trình bày báo cáo
• báo cáo lâm nghiệp
• công trình nghiên cứu lâm nghiệp
• tài liệu về lâm nghiệp
• báo cáo khoa học
• báo cáo hóa học
• công trình nghiên cứu về hóa học
• tài liệu về hóa học
• Công nghệ hóa
• Chemical transformation
• Croton tonkinensis Gagnep
• Hóa dược
• Y học cổ truyền
• Cây thuốc
• Organic chemistry
• Lecture Organic chemistry
• Hóa học hữu cơ
• Electronic Structure
• Reactions of Alcohols
• Oxidation mechanism
• medicine
• cell proliferation