In Situ Oxidation Study of Pt Nanoparticles on MgO(001)
نویسندگان
چکیده
منابع مشابه
Electrochemical Oxidation of Ascorbic Acid on Gold Nanoparticles Coated Pt
Nanomaterials exhibit unique chemical [1-3], physical [47] and electronic [8] properties that are distinctly different from those of bulk materials and depend on size, shape and surface composition of the nanostructured materials. Nanomaterials of noble metals are finding worldwide interest in research communities [9-12]. Several reviews have highlighted the role of metal nanoparticles in catal...
متن کاملAg/Pt Core-Shell Nanoparticles on Graphene Nanocomposite for Effective Anodic Fuels Electro-oxidation
The nanocomposite consists of the Ag as a core and Pt as shell on the surface of graphene nanosheets (Ag/Pt-G) was synthesized with a simple method and used as a novel electrochemical platform for an efficient catalyst for oxidation of the ethanol, methanol and formic acid. The morphology and electrochemical properties of Ag/Pt-G nanocomposite were investigated by TEM, X-ray diffraction, and vo...
متن کاملCerium oxide as a promoter for the electro-oxidation reaction of ethanol: in situ XAFS characterization of the Pt nanoparticles supported on CeO2 nanoparticles and nanorods.
In this study we probe the electrocatalytic activity of Pt nanoparticles supported on ceria nanoparticles (NPs) and nanorods (NRs) in the ethanol oxidation reaction (EOR) in alkaline media. The goal of this study was to relate morphology, support structure and composition to the EOR catalytic activity by using in situ X-ray absorption fine structure (XAFS) studies. Cyclic voltammetry experiment...
متن کاملElectrochemical Oxidation of Size-Selected Pt Nanoparticles Studied Using in Situ High-Energy-Resolution X-ray Absorption Spectroscopy
High-energy-resolution fluorescence-detected Xray absorption spectroscopy (HERFD-XAS) has been applied to study the chemical state of ∼1.2 nm size-selected Pt nanoparticles (NPs) in an electrochemical environment under potential control. Spectral features due to chemisorbed hydrogen, chemisorbed O/ OH, and platinum oxides can be distinguished with increasing potential. Pt electro-oxidation foll...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Physical Chemistry C
سال: 2013
ISSN: 1932-7447,1932-7455
DOI: 10.1021/jp404698k