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A study of electrocatalytic ethanol oxidation of nanoporous PtSi alloy
Nali Lu
Yao Li
Lei Zhang
Yong Fang
Bin Qian
Zhida Han
Xuefan Jiang
Characterization and Application of Nanomaterials 2021, 4(1), 25-30; https://doi.org/10.24294/can.v4i1.1325
Submitted:14 Dec 2020
Accepted:03 Feb 2021
Published:10 Feb 2021
Abstract

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.

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