Highly porous Pt3Ni nanosheets for enhanced hydrogen evolution reaction

IF 5.9 3区材料科学 Q2 CHEMISTRY, PHYSICAL

FlatChem Pub Date : 2024-09-24 DOI:10.1016/j.flatc.2024.100750

引用次数: 0

Abstract

Two-dimensional (2D) nanosheets with high surface-to-volume ratios have garnered significant attention for their electrocatalytic properties. This study explores the characterization and electrocatalytic performance of highly porous monometallic platinum (Pt) nanosheets and bimetallic platinum-nickel (Pt₃Ni) nanosheets for the hydrogen evolution reaction (HER) in both alkaline and acidic media. Advanced characterization techniques were employed to elucidate the morphological and compositional properties of the Pt and Pt₃Ni nanosheets. Electrochemical characterization demonstrated that Pt₃Ni nanosheets/C outperformed Pt nanosheets/C and commercial Pt/C in terms of HER activity and stability. The enhanced HER performance of Pt₃Ni nanosheets/C is believed to be due to the dominance of the Volmer-Tafel mechanism. These findings highlight the potential of 2D bimetallic nanosheets and suggest a promising avenue for advancing hydrogen energy technologies.

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用于增强氢气进化反应的高孔隙 Pt3Ni 纳米片

具有高表面体积比的二维（2D）纳米片因其电催化特性而备受关注。本研究探讨了高多孔单金属铂（Pt）纳米片和双金属铂镍（Pt3Ni）纳米片在碱性和酸性介质中进行氢进化反应（HER）的表征和电催化性能。研究人员采用了先进的表征技术来阐明铂和铂镍纳米片的形态和组成特性。电化学表征结果表明，就 HER 活性和稳定性而言，Pt3Ni 纳米片/C 优于 Pt 纳米片/C 和商用 Pt/C。Pt3Ni 纳米片/C 增强的 HER 性能被认为是由于 Volmer-Tafel 机制的主导作用。这些发现凸显了二维双金属纳米片的潜力，并为推动氢能技术的发展提供了一条前景广阔的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

FlatChem Multiple-

CiteScore

8.40

自引率

6.50%

发文量

104

审稿时长

26 days

期刊介绍： FlatChem - Chemistry of Flat Materials, a new voice in the community, publishes original and significant, cutting-edge research related to the chemistry of graphene and related 2D & layered materials. The overall aim of the journal is to combine the chemistry and applications of these materials, where the submission of communications, full papers, and concepts should contain chemistry in a materials context, which can be both experimental and/or theoretical. In addition to original research articles, FlatChem also offers reviews, minireviews, highlights and perspectives on the future of this research area with the scientific leaders in fields related to Flat Materials. Topics of interest include, but are not limited to, the following: -Design, synthesis, applications and investigation of graphene, graphene related materials and other 2D & layered materials (for example Silicene, Germanene, Phosphorene, MXenes, Boron nitride, Transition metal dichalcogenides) -Characterization of these materials using all forms of spectroscopy and microscopy techniques -Chemical modification or functionalization and dispersion of these materials, as well as interactions with other materials -Exploring the surface chemistry of these materials for applications in: Sensors or detectors in electrochemical/Lab on a Chip devices, Composite materials, Membranes, Environment technology, Catalysis for energy storage and conversion (for example fuel cells, supercapacitors, batteries, hydrogen storage), Biomedical technology (drug delivery, biosensing, bioimaging)