Open AccessA study of electrocatalytic ethanol oxidation of nanoporous PtSi alloy
Author(s) -
Nali Lu,
Yao Li,
Lei Zhang,
Yong Fang,
Bin Qian,
Zhuo Han,
Xuefan Jiang
Publication year - 2021
Publication title -
characterization and application of nanomaterials
Language(s) - English
Resource type - Journals
ISSN - 2578-1995
DOI - 10.24294/can.v4i1.1325
Subject(s) - nanoporous , alloy , catalysis , x ray photoelectron spectroscopy , materials science , transmission electron microscopy , chemical engineering , electrocatalyst , scanning electron microscope , nanometre , nanotechnology , metallurgy , chemistry , electrochemistry , composite material , electrode , organic chemistry , engineering
In recent years, nanoporous alloys have presented the advantages of a large specific surface area, low density, and simple operation, and they have been widely used in the fields of catalysis, magnetism, and medicine. Nanoporous Pt-Si alloy was prepared by melt-spun and chemical dealloying, and was characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscope, and transmission electron microscopy. Pt-Si alloys possess a three-dimensional bicontinuous structure and an average size of 5 nanometers. Compared with commercial Pt/C catalysts, nanoporous Pt-Si alloys exhibit excellent electrocatalytic activity and stability in ethanol-catalyzed oxidation reactions. It is taken into consideration to be a promising catalyst in direct ethanol fuel cells.