Work

Enhanced Methanol Electro-Oxidation in Hierarchical Au-Pt Dendrites Supported on Graphene-like Substrate

Year: 2025

Type: article

Abstract: This study presents an easy and rapid two-step electrodeposition method for the synthesis of a novel hierarchical dendritic AuPt bimetallic nanocomposite electrode. Ascorbic acid served as both a reducing and directing agent, while a roughened carbon substrate facilitated the formation of the unique dendritic nanostructure. The structural and compositional properties of the synthesized material were comprehensively characterized using X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), selected area electron diffraction (SAED), and transmission electron microscopy (TEM). The resulting nanocomposite exhibited a significantly enhanced specific surface area of 6.97 m2 g−1, compared to commercial Pt/C. Electrochemical investigations demonstrated superior electrocatalytic activity and durability for methanol oxidation in the prepared AuPt nanocomposite electrode, suggesting its promising potential for fuel cell applications.

Source: Coatings

DOI: 10.3390/coatings15040458

Authors: Zifeng Zhu, Yiming Zhao, Yongming Ruan, Xuexiang Weng, Gesmi Milcovich

Institutions: Zhejiang Normal University, University of Modena and Reggio Emilia

Language: English

Topic: Electrocatalysts for Energy Conversion

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $3,137