Dodecylamine-mediated synthesis of caron-supported platinum-ruthenium alloy nanoparticles with ultrafine sizes towards high-efficiency methanol oxidation electrocatalysis

IF 4.8 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International Pub Date : 2025-02-01 DOI:10.1016/j.pnsc.2024.12.011

Liang Chu , Zheng Rong , Mengyuan Ma , Feng Guo , Shaonan Tian , Jun Yang

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Abstract

For fully leveraging the advantages of PtRu alloys as electrocatalysts to catalyze methanol oxidation reaction (MOR), we herein report an ambient-temperature method for directly synthesizing carbon-supported PtRu alloy nanoparticles with ultrafine sizes in an organic medium towards high-efficiency MOR. This strategy involves the dodecylamine (DDA)-mediated extraction of Pt and Ru ions from water to toluene, and then mixing them with carbon substrate, followed by NaBH₄ reduction in the same organic medium. Profiting from their ultrafine sizes of ca. 1.68 nm, the as-prepared PtRu nanoparticles supported on carbon substrate show a mass activity of 0.93 A mg⁻¹ and a speciﬁc activity of 10.56 mA cm⁻², respectively, both of which are much higher than those of the commercial PtRu/C catalyst.

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来源期刊

Progress in Natural Science: Materials International 综合性期刊-综合性期刊

CiteScore

8.60

自引率

2.10%

发文量

2812

审稿时长

49 days

期刊介绍： Progress in Natural Science: Materials International provides scientists and engineers throughout the world with a central vehicle for the exchange and dissemination of basic theoretical studies and applied research of advanced materials. The emphasis is placed on original research, both analytical and experimental, which is of permanent interest to engineers and scientists, covering all aspects of new materials and technologies, such as, energy and environmental materials; advanced structural materials; advanced transportation materials, functional and electronic materials; nano-scale and amorphous materials; health and biological materials; materials modeling and simulation; materials characterization; and so on. The latest research achievements and innovative papers in basic theoretical studies and applied research of material science will be carefully selected and promptly reported. Thus, the aim of this Journal is to serve the global materials science and technology community with the latest research findings. As a service to readers, an international bibliography of recent publications in advanced materials is published bimonthly.